You should be able to do it by ear,With a load on the unit you should be able to idle it to where it sounds like it is not running to fast and that it is not running enough to keep it from triping the reset.it should sound smooth. or idle it to around 2000 rpms or lower.
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Static Adjustment Procedure
Make this adjustment whenever governor arm is
loosened or removed from cross shaft. Adjust as follows:
1. Make sure throttle linkage is connected to governor
arm and throttle lever on carburetor.
2. Loosen nut holding governor lever to cross shaft.
3. Move governor lever toward carburetor as far as it
will go (wide open throttle) and hold in this position.
4. Insert a long thin rod or tool into hole on cross shaft
and rotate shaft clockwise (viewed from end) as far
as it will turn, then torque nut to 6.8 N·m (60 in. lb.).
Throttle valve cable adjustment:Place throttle body in idle position. Press cable lock button to release cable. Pull cable conduit toward rear of vehicle until wiper is completely retracted into end of conduit fitting. Release cable lock button. Raise vehicle for access to trans throttle valve lever. Rotate throttle valve lever toward front of vehicle until ratcheting sound (from cable) stops. CAUTION " Do not rotate throttle valve beyond the idle stop. The lever, valve and manual lever shaft will be damaged if rotated too far." Check cable adjustment. Throttle valve lever should begin to move at same time lever on MPI throttle body moves off idle position. Lower vehicle. 1991/1992 Rear Wheel Drive Truck There is also an adjustment procedure for front and rear band adjustments at engine if you need them.
Assuming that the engine is supposed to stop when the throttle is pulled right back (not all of them are), then either the wire on the STOP terminal has become detached, or the cable is not moving the lever on the engine far enough - cable adjustment required.
Your governor should not need adjusting unless someone moved it and you want to go back to factory setting. Having said that. You will loosen small nut on bottom of governor, follow the travel of governor to watch the throttle in wide open position. Hold it in that position then with needle nose grip the center of stud coming out of bottom center of governor and move this all the way in same direction as wide open throttle, then snug it up and your done. Good luck.
There isn't an adjustment screw that you really manipulate. The computer dynamically controls the throttle using the information it gets from the throttle positioning sensor (TPS) on the throttle body. The TPS is secured with tamper proof bolts that the head breaks off when torqued down. If you remove the throttle body and extract those bolts, then you can add bolts/screws with head and can be loosened and tightened. Then you can move the TPS back and forth to adjust the idle.
I wouldn't recommend doing this though: if there is and issue with the idle, it is because something is malfunctioning, not because it needs to be adjusted.
There should be an adjuster in each cable just below the throttle assembly. Push the adjuster cover up to get to the adjusters. Loosen each adjuster lock nut. Adjust the throttle cable first. Adjust it until it has just a bit of freeplay in the cable. As you attempt to twist the throttle, you should feel a littlefreeplay before you feel the throttle start to open. Then adjust the idle cable the same way. When finished, lock the lock nuts so the adjustment doesn't change. Now, twist the throttle wide open and release it. The throttle should snap closed. If it doesn't, you may have to loosen the two bolts that hold the two switch housings together and slide the assembly down towards the end of the handlebar about a quarter of an inch. Try the throttle assembly again at half throttle. It should snap shut. If not, continue until you find out why. If the throttle does not work correctly, loss of control of the machine could result and the rider could be injured or killed. Make sure the throttle works properly.
If you move the throttle switch housing down on the handlebar, check the rear brake light. If it is on continously, you must move the front brake master cylinder down against the switch housing. Loosen the bolts and slide it down towards the switch housing as far as it will go.
Look down on the left side of the engine where the throttle cable attaches to the control linkage. There is a bolt that holds the black plastic cable in a clamp like device. Losen the bolt and slide the cable back toward the handle / grass catcher in the housing just a bit. Tighten the bolt and then start and test your engine shut off with the throttle contol lever in the stop position. You may have to adjust it a couple of times. If after the adjustment(s) it still does not start, then there is a problem with the kill wire switch on the engine's control linkage.
I had a similar problem on my 04 expedition. I just bought it and the headlights were aiming too far down. A rather larger gap was noticeable between the headlight and the hood. The so called adjustment bolt did nothing. I removed the headlights and found 2 issues. On the adjustment bolt there is a washer. Make sure when you re-install the headlight the washer sets on top of the plastic slot and is visible when looking down behind the headlight. Without the washer being in the correct location it will not tighten the headlight in place.
Second I found the adjustment bolt adjusted nothing. It merely tightened the headlight in place. What I had to do was to loosen this bolt and physically move the headlight into place and the re-tighten the bolt. Hence the slot is the adjustment. Turning the bolt CW or CCW did not move the headlight.
I tried several things trying to figure why the lights would not move until I realized I could move the light with my hands and tightened them in place using the adjustment bolt.
This may not be your issue but I found the owners manual instructions to be useless.
tps is throtle position sensor check inside the throttle body the could be abuild up of gum clean with carby cleaner to improve air flow and has anyone moved the adjusting screw on the throttle these are factory and dont work well when moved reset codes road test and check codes again if the code come back replace tps switch