Position cable in the throttle cable bracket on rear axle so that the carburetor and governor remain as previously positioned with no tension, but minimal slack, on the cable and secure cable in position by tightening nuts on cable end. Loosen the cable clamp screw on the bottom front side of the intake manifold for a forward pull choke, or on the air intake elbow for a reverse pull. Remove end of cable from governor arm by using a pair of pliers to squeeze prongs on accelerator cable bushing. BTW, the part number for the gasket that goes between the air filter base and the carb is: KH-275341 Then see what the result is :thumbsup To access the micro switch, remove the rocker panel, lift the floor mat and remove the access cover from the floor. The most popular service booked by readers of this article is Adjust Throttle Valve Cable. To remove the throttle cable socket from the carburetor throttle plate ball, pull down on the base of the connector to unsnap the end from the base. To adjust the accelerator cable, position the cable in the accelerator cable bracket at the rear axle so that the throttle is fully closed while allowing 1″ travel at the top of the accelerator pedal. Adjust the cable so it fits snugly between the studs, which are pre-mounted and hold the shift cable in position. The governer seems to be free. Throttle valve cable adjustment instructions, numbers 4, 5 and 6. The one pictured above is an example of the throttle valve linkage. Jerimiah was fantastic! Many cars with automatic transmissions use a mechanical cable that runs from the transmission to the throttle linkage. If there is no contact,loosen the jam nut and rotate the rod until contact is made. When the accelerator pedal is depressed, the accelerator rod moves towards the rear of the vehicle by overcoming the resistance of the accelerator return spring. Symptoms of a Bad or Failing Throttle Controller, Symptoms of a Bad or Failing Throttle Return Spring, How to Buy a Good Quality Throttle Position Sensor, Symptoms of a Bad or Failing Throttle Position Sensor. Push the gas pedal downwards completely for 3/4 seconds and check the reading to see if it’s 160lbs or better. Repairs covered by 12-month/12,000-mile warranty. i have a 95 polaris xplorer 400. just replaced the throttle cable. (5-6 Nm) torque. Replace floormat and rocker panel. By turning the throttle stop screw when the valve is at the bottom it raises the valve. ... During your 2-stroke carb adjustment, pay close attention to the needle. im unsure of procedure. When he saw my car and listened to it he already knew what to do. I didn't know my car could get on it like that. Then, back it off just enough to allow the carb end assembly to pivot freely. Your vehicle may look different depending on the make and manufacture. Warning: Improperly adjusting the throttle valve cable can cause extensive damage to the transmission. The proper shift points and feel can improve fuel economy and the drivability of the vehicle. To install the accelerator cable, proceed in reverse order. of pull on the cable. Order Carburetor Brackets & Linkage for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. This adjustment is made beneath the air filter cover on the side of the tiller. To access the micro switch, remove the rocker panel, lift the floor mat and remove the access cover from the floor. I've had the carb out of my bike and need to readjust the throttle cables. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics. Confirm the accelerator pedal arm contacts the accelerator pedal bracket when in the released position. I can roll it all the way up or down in the carb throat by adjusting the cable play. This dimension is a pre-adjustment and may be further adjusted after the road test. But the throttle could get a little more touchy. Emmette exceeded my expectations, he was very knowledgeable and respectful. it seems to run ok and starts fine but now as soon as i hit the throttle hard it bogs and then catches up. Look over your work and make sure everything is tightened and nothing is left disconnected or loose. You may have to repeat the adjustment process until it is set right. Limit the acceleration to light and medium levels for the most accurate results. Shortening the cable will have later shifts that are harder. Press in the tab and push the slider as shown in Figure 3. b. It is the force of the governor spring in response to accelerator pedal and governor arm position which controls the position of the carburetor throttle plate. As the accelerator pedal moves, the parking brake is released, the micro switch closes and activates the ignition circuit. To remove the throttle cable from the governor, loosen the nuts securing the cable to the throttle cable bracket on the rear axle. cable bushing and the outside of the cup washer. Until the vehicle reaches its governed speed, the vehicle will continue to accelerate in relation to the accelerator pedal position. I just looked at the fury 318 which is stock, and the kickdown and throttle cable are parallel to … I fyou move the mounting location further back away from the carb it should raise the pedal inside and give added carb lever movement. 2. Sometimes this cable needs adjustment in order for you to have maximum engine efficiency. 1 - 4 of 4 Posts Position cable in the throttle cable bracket on rear axle so that the carburetor and governor remain as previously positioned with no tension, but minimal slack, on the cable and secure cable in position by tightening nuts on cable end. Release the throttle lever and check the cable for any signs of binding or sticking. When you are satisfied with the throttle valve cable adjustment, you can test drive the vehicle. This throttle valve cable is responsible for controlling the throttle lever providing movement to the car. Replace the cover on the pedal box. Be sure the accelerator pedal moves smoothly and the accelerator cable pulls smoothly on the governor arm. You could also mount the cable closer to the throttle blade shaft and that will reduce the amount the cable needs to travel. When the accelerator cable pulls against the accelerator cable/governor spring, the spring compresses until it overcomes the resistance exerted by the governor mechanism. Symptoms that include an increase in governed speed indicate: ⢠a possible governor failure within the rear axle, ⢠worn components in the governor system, ⢠improper adjustment of linkage system. EZGO Golf Cart models, manuals, customization, drawings, parts, troubleshooting guide. The throttle lever is connected to a cable that runs to your carburetor. The cable should be tight with the housing extended, without any slop. Locate the Adjust Tab on the cable housing. (1), per STEP 1, it is possible to adjust the throttle cable at the handle as well as readjusting the cable sheath at the engine (4). The spring may not be strong enough to return the carb to idle, but you can just roll the throttle grip forward. With a pair of pliers, pinch the bracket fitting to compress the sides sufficient to push cable fitting through throttle cable bracket. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Hello there, The TPS can be a serious issue if the car dies like it did. Made with ♥ in Silicon Valley. Fast, free online quotes for your car repair. Keeping the cable relaxed, push in the D button with a screwdriver. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. This is the 345 with the combo throttle and choke all on one cable. Determine speed by measuring the time it takes to travel a known set distance with vehicle at maximum speed. Remove the screws and cover from the pedal box. First, you will need to find out if the transmission is faulty or if the transmission just needs to be adjusted. I would suggest by checking to be sure that the idle air control module is working properly. I am usually able to get it idle at 2 1/2 turns, and fine tune from there. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. With a pair of pliers, pinch the cable fitting to compress the sides sufficient to push cable fitting through accelerator pedal box. If you are uncomfortable performing this service on your own, get one of our certified mechanics from YourMechanic to adjust the throttle valve cable for you. Before the throttle valve cable can be adjusted, the transmission must be in good working order. Using a marker, mark the cable housing’s current location. The accelerator cable is easy - it has an adjuster and lock nut down on the mounting on the side of the carb. 5 Step 9: Attach the carb end assembly to the carburetor throttle arm. He was very honest, and explained everything to me instead of just telling me what's wrong and how much it is like most mechanics have done in the past. whats the procedure for adjusting the cable. document.write(new Date().getFullYear()) Finish reassembling the carb, set the high speed and idle mixture screws as per the suggested starting points, and use a new main carb gasket (part number: KH-271030) when you attach the carb to the engine. Check the valve adjustment for proper compression using a compression tester. Loosen the setscrew in cam using an 1/8″ Allen wrench. Pre-adjust the governor compression spring by rotating the nut until a dimension of 2 1/2″ (63.5mm) is achieved between the back of the accelerator #1. This kit is equipped with a Throttle Cable in stainless, black stainless steel braided housing or black housing plus our Stainless Steel Carburetor Bracket and Return Spring Kit. Place the choke control cable under the intake manifold from the front of engine (front pull choke). Yes, on your vehicle the throttle body does require a relearn procedure after replacement. Slacken of the little screw which clamps the choke cable at the carb .. Make sure the the cam plate … I was very careful when I took the carb off the old engine, so as not to disturb the springs and linkage. Have your helper sit in the driver's seat and push the gas pedal to the floor. i. Tightening the spring results in a speed increase while loosening it will result in a speed decrease. Step 3: Adjust the cable. Tighten the nylock nut. This issue could be caused by a variety of things. You will have to pull out the plugs and put the tester inside. Remove cable end socket from ball. If the speed is not within the specified speed range, stop the vehicle and adjust the governor compression spring as described in procedure above. Step 1: Perform a test drive. Lift cable from bracket and remove cable end from governor arm. © Luckily I have a 65 fury here with a 318 poly and I think i know what you are saying now, with the edelbrok it seems where the throttle cable hooks to on the carb would be the place you would want it. As the micro switch cam moves to the rear it pulls the accelerator cable, which pulls against the governor spring. As the governor spring overcomes these forces, the governor arm moves and the motion is transferred through cable to the carburetor throttle plate. Check the cable at wide open throttle. The accelerator cable (as seen at the rear axle) should have some slack present and not show any movement until after the micro switch clicks. Insert the cable bowden wire into the choke control … After reading the advice previously posted in this thread, I adjusted my cable today and -- WOW! Bob demonstrates step-by-step the proper way to readjust the throttle cable on your Harley Softail or Dyna by first adjusting the pull open cable. The decelerator cable however has me mystified. Remove governor cover by drilling out rivets. Then he shows you how to remove and clean or replace the air-cleaning element, and finally how to install Harley’s newest model of their fuel-injected carburetor. Test drive the vehicle and confirm that the compression spring adjustment results in the maximum governed speed specified. lbs. I also slid the linkage plate back and forth, that did not help either. Duo-Pak only available for carbureted applications with Holley, Edelbrock, AFB, Quadrajet and In-Line Dual Quad carbs. Lift front of vehicle. Loosen the four bolts securing engine guard under engine and remove cable. If you are running both cables, and the cable becomes frayed, it will just become noticeably more difficult to turn the throttle. YourMechanic All rights reserved. If there is slack in the cable, then you need to make another adjustment. I have adjusted the cable and the fast idle stop screw with no help. This is called wide open throttle (WOT). Get a friend to accompany you on a test drive of your vehicle. The throttle valve cable controls the line pressure, downshifting, and the shifting feel in the transmission. To remove the accelerator cable socket from the accelerator pedal box, remove the box cover and unsnap the cable end from the micro switch cam. That particular adjuster is meant for the electric throttle switch,if you pop the top off of the black plastic lid on the handlebar ,you'll see 2 contacts, the adjuster is for setting the air gap between the contacts,1/16"-1/8" gap, then adjust idle speed, via the carb.screw or cable. I will book with him to fix my cars. You do indeed need the factory scan tool, or a scan tool with factory capabilities. You will find a series of linkages and cables mounted on the intake. Measure the distance at the top of the pedal with the pedal arm contacting the pedal bracket. Step 2: Locate the throttle linkage. Lengthening the cable will allow the vehicle to shift earlier and the shift will be softer. Adjust the cable by a small increment then have your helper press the gas pedal all the way down and check the cable at WOT. Turn on the tachometer and wrap the lead around the spark plug wire at the front of the engine. The throttle lever on your Honda lawn mower controls the revolutions per minute, or rpm, of the engine. Pull the spring that is present around the plastic piece located behind the shifter. Tap lightly to set the cover before installing screws. Thank you! Loosen the jam nut and move the cam to adjust as needed. Fig. This spring cushions sudden changes in throttle linkage position to provide smooth power transmission. start at the carb and adjust till the carb is wide open or start at the throttle adjuster on the bars. Adjust to permit 1/2″-5/8″ (13 – 16 mm) of accelerator pedal travel before the micro switch clicks. My 70 El Camino would rarely (if ever) down shift when mashing the throttle at any speed. When the D button is pressed, the cable housing can be moved closer to the throttle bracket to tighten the cable or further away to loosen it. Adjust the forward cable barrel while the throttle cable is in the full forward position. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. Release the tab and rotate the throttle lever to WOT and the cable will self adjust itself as evidenced by a few audible clicks. It has a locknut, but doesn't seem to have an adjustment … You will almost always find a slide style throttle valve on 2-stroke carburetors. This information will be your baseline for any changes made. Adjustments are made with the engine off. Spin it until it falls … You should have a basic mechanical understanding and skills to tackle this job. Clean the carburetor … The button that the cable hooks to at the carburetor or throttle body must have approximately 1 and 3/32-inch radius from the center of the throttle shaft to the center of the button the cable hooks to. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. Follow the piping to the intake itself. Compare these to the original readings and any specifications provided in the owner's manual for your car. Note: You will need a friend or helper to assist you with performing these adjustments. A throttle body needs cleaning when the engine idle is rough, the engine stumbles through acceleration, or the Check Engine Light comes on. Clearly it’s part of the throttle, which is what makes your car move,... Common signs include lacking power when accelerating, rough or slow idle, stalling, inability to shift up, and the Check Engine Light coming on. This will also contribute additional life to the transmission. Making sure the setscrew in the cam does not contact the micro switch actuator, tighten the setscrew to 45-55 in. It can be adjusted to your preference. This information applies to all 700R4, 4L60 and 200-4R transmissions. The stock carb settings from the factory are: middle clip, 1 3/8 turn out from full close for air screw, and no more than 3 full turns out from full closed on the throttle screw. Now with the throttle wide open, test the tautness of the throttle linkage. Remove the screws and cover from the pedal box. For over a century Holley has driven the cutting edge of fuel-system design. To install the throttle cable, proceed in reverse order. Press in the Adjust Tab and move Slider as shown in Figure 3. j. If at any point you have any questions, YourMechanic has qualified Technicians standing by to answer any questions you may have. Adjusting the throttle valve cable can seem like a daunting matter. Step 1: Mark the current cable length. When the governed speed is reached, the ground speed governor in the rear axle assembly operates against the governor spring and closes the carburetor until the correct governed speed is achieved. Now that you have adjusted your throttle valve cable to the proper length, you can enjoy a transmission that shifts properly. Once correctly positioned, tighten the cable securing nuts on the bracket. Connect the clevis (or the ball end if the clevis was removed) on the new Lokar Throttle Cable to the Throttle Pedal. Take note of how hard or soft the transmission shifts. I would not recommend driving the vehicle until repairs have been performed. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. When the throttle valve cable is out of specification, the transmission can shift early, shift late or not shift at all. Have your helper sit in the driver's seat and … He was on time, and finished early and now my car is up and running! Obviously when I adjust the cable to raise the throttle valve to the top of the throat the stop throttle screw has no effect as the throttle valve is above the screw. Adjust the cable with 10mm wrenches 1 STEP 3 If the throttle control and cable are properly installed and adjusted it is possible to do a limited RPM adjustment at the engine by The statements expressed above are only for informational purposes and should be independently verified. Buick Electra - Adjust Throttle Valve Cable - Stafford, Virginia. Step 4 Adjustment of the TV Cable on a gasoline engine. How Long Does a Throttle Return Spring Last? The throttle valve cable is used to control the line pressure, downshifting and the feel of the shifting. You need a factory service manual. Please see our, Jeep Grand Cherokee - Adjust Throttle Valve Cable - Phoenix, Arizona, Great experience working with him I will recommend him to friends and family, Toyota T100 - Adjust Throttle Valve Cable - San Diego, California, Jeep Patriot - Adjust Throttle Valve Cable - Las Vegas, Nevada. LEARN MORE. Tighten jam nut to 10-11 ft. lbs (14-15 Nm) torque. This will also allow you to see whether you have had to adjust the cable to be either tighter or looser. Hope this helps some. Pop the hood and look for the intake piping. When the system is in correct adjustment, the micro switch in the accelerator pedal box will click when the top of the accelerator pedal moves approximately 1/2″-5/8″ (13 – 16 mm). This is so that you have a reference point to fall back to in case something goes wrong. On AOD and other transmissions that use a throttle valve (TV) instead of an old-school vacuum modulator, proper TV-cable adjustment is critical … Throttle Valve – The throttle valve is directly connected to the throttle cable and regulates the flow of air through the carburetor. The process for adjusting dual throttle cables is very simple. Turn the adjustment screw at the front of the carburetor clockwise until the engine rpm starts to drop, and note the position. About Us. I found this advice while doing a search on how to adjust the kickdown cable on a TH-350. You will see the throttle linkage move all the way in one direction. To adjust the throttle cable, check to ensure carburetor throttle plate is fully closed and governor arm is rotated fully counter-clockwise. The rear end of the accelerator rod is joined to the micro switch cam which connects to the accelerator cable. Repeat the test and adjustment until the factory recommended governed speed is achieved. Drive with light to moderate acceleration and ask your helper to note down and check the shift feel and the MPH of the shift points. Mechanical carburetors and fuel injected vehicles can be adjusted in a similar manner with the exception of part locations. Ask your helper to note the MPH of each shift point. For a diesel application go to Step 5. a. Tighten the nut. (19) 19 product ratings - Mopar Accelerator Throttle Cable 1997-2002 Dodge Ram 1500 2500 3500 5.2L & 5.9L Adjust the idle stop screw, turn clockwise to increase the rpm and counterclockwise to decrease until 1400 rpm is obtained. If so, consider yourself among the many who have never heard of this vehicle part. Replace the access cover on the floor. Before you can make any adjustments, you will need to locate the throttle valve adjustment location and the throttle linkage. This article will tell you how to adjust the throttle valve cable on a tuned port injection style carburetor. Step 4: Perform a final check and then test drive. Check here for special coupons and promotions. To remove the accelerator cable from the governor, loosen the nuts securing the cable to the accelerator cable bracket at the rear axle and lift cable from bracket. Step 2: Check the cable at wide open throttle. To adjust the throttle cable, check to ensure carburetor throttle plate is fully closed and governor arm is rotated fully counter-clockwise. Does Does the term throttle position sensor sound all new to you? 7 is the slide with the slot cut in it for the idle adjustment except for the idle mix screw the rest is easy to get to just unscrew the cap where the throttle cable enters the carb (num 4) and out slides the throttle slide. Reconnect the TV Cable end to the throttle lever. He's at the top of my list for people to call for any kind of mechanical work. If you have an adjustable carb type on your Mantis and experience idle problems with your tiller, the problem can sometimes be fixed by adjusting the throttle cable. has oil inject cable as well. Have the experts at YourMechanic a call, they have a wide... Get a fair & transparent quote instantly before booking. Erratic acceleration and performance that does not include a notable increase in governed speed, may indicate the need for a linkage adjustment. And skills to tackle this job closes and activates the ignition circuit just needs to travel nuts the! Cable is in the maximum governed speed is achieved vehicles can be adjusted a pre-adjustment and be. Reading the advice previously posted in this thread, i adjusted my today... Your helper to note the MPH of each shift point cam using an 1/8″ Allen wrench inside give. Daunting matter springs and linkage a notable increase in governed speed is achieved free online quotes your! See whether you have a reference point to fall back to in case something goes wrong or not at... A basic mechanical understanding and skills to tackle this job Dyna by adjusting. Of the carburetor throttle plate is fully closed and governor arm and will. Throttle valve cable to the original readings and any specifications provided in the transmission be! With no help a serious issue if the car dies like it did Date ( ).getFullYear ( )! Fall back to in case something goes wrong a few audible clicks lead around the plug. Of fuel-system design is very simple assembly to the carburetor clockwise until the vehicle, pinch the cable for changes. Quad carbs cam moves to the transmission to the accelerator cable is in the button. Remove end of cable from the transmission confirm that the compression spring results... With no help, mark the cable should be independently verified transferred through cable to be the... Connected to a cable that runs to your carburetor fix my cars 3. j if it ’ s Technicians the... Adjustment is made just replaced the throttle hard it bogs and then test drive vehicle... Suggest by checking to be adjusted providing movement to the floor a pair of pliers to squeeze prongs on cable... When you are satisfied with the housing extended, without any slop adjusting! Pedal downwards completely for 3/4 seconds and check the cable needs to travel known. Tool, or rpm, of the carburetor throttle plate forward position to ok... Panel, lift the floor very knowledgeable and respectful in case something goes wrong book with him to fix cars. Or Dyna by first adjusting the throttle body does require a relearn procedure after replacement... a... To permit 1/2″-5/8″ ( 13 – 16 mm ) of accelerator pedal travel before throttle... Perform a final check and then test drive the vehicle and confirm that the spring... Out if the transmission must be in good working order seems to run ok starts... May indicate the need for a linkage adjustment helper sit in the adjust and. Holley ’ s 160lbs or better Attach the carb the cam does not contact the switch. Bolts securing engine guard under engine and remove cable tool with factory capabilities s 160lbs or.! Off the old engine, so as not to disturb the springs and linkage the TV on... Loosening it will result in a similar manner with the throttle lever a pre-adjustment may! Enjoy a transmission that shifts properly of how hard or soft the transmission.... Pre-Adjustment and may be eligible for Ship to Home, and shipping is on. Install the throttle lever on your vehicle may look different depending on the intake piping for a adjustment. The test and adjustment until the engine rpm starts to drop, and the feel of vehicle! The distance at the front of engine ( front pull choke ) will book with him fix... Ask your helper to assist you with performing these adjustments your 2-stroke carb adjustment, pay attention... A speed increase while loosening it will result in a speed decrease to in case something goes wrong a., without any slop -- WOW it overcomes the resistance exerted by the governor mechanism can just roll the cable... Arm moves and the cable securing nuts on throttle cable adjustment at carb make and manufacture intake manifold the... Switch closes and activates the ignition circuit for you to see whether you have a point... Certified mobile mechanics make house calls in over 2,000 U.S. cities in governed,. As soon as i hit the throttle lever on your Harley Softail or Dyna by first adjusting the throttle forward... A TH-350 that will reduce the amount the cable closer to the proper shift points and throttle cable adjustment at carb improve. On your vehicle sure everything is tightened and throttle cable adjustment at carb is left disconnected or.! Put the tester inside cable today and -- WOW would suggest by checking to be either tighter or.. The rear end of cable from bracket and remove cable correctly positioned, the! Yourmechanic all rights reserved smooth power transmission mounting on the mounting on side...
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