My four wheeler will not go into high gear but go in low gear just fine

If by last gear you mean the high gear, then you are likely hitting the rev limiter or speed limiter.

If you have a Honda Rubicon, you must place the transmission in Neutral, then pull in Left Hand brake and push down Reverse knob that will remove the reverse lockout and allow you to shift it into reverse. If that doesn't work your reverse lockout knob might be defective or out of adjustment. The adjuster, depending on which model you have, will be on one end of the reverse lockout cable.

You can try to adjust the linkage below the shifter should be 2 rods there one is low gear other is forward and backwards if that's doesn't do it then you have to pull trans out and sleeve the shift heads hope you can just adjust it

If you need further help, I’m available over the phone at https://www.6ya.com/expert/brandon_79b580f5a99c4386

Some times the four wheeler is not in right position for 4x4 to engage safely so it throws it in to safety mode so it don't slam in to 4x4 with grindage an damage that's my experience. If it seemes to work fine when working run it . . Could need service,fluid change and 4x4 actuators,.,vacuums switches tested also ...

every four wheeler I've ever worked on has the ignition timing fixed and controlled by the CDI. Mechanical timing usually invovles lining up the T on the flywheel with a mark on the cam shaft. you'll need a service manual for more specifics.

It appears that the problem is in the brushes in the alternator and the slip rings. At high revs and 4000 will be around 6000 in the alternator the brushes are floating off the rings. I would have the alternator check out

bent shift fork,, or shift shaft arm,,.. could be the gear..not likely, take it to a trained mechanic

push it off a cliff

1. eHow
2. Car Repair & Maintenance
3. Car Oil Maintenance
4. Drain Car Oil
5. How to Repair a Polaris Four Wheeler

How to Repair a Polaris Four Wheeler By Brianna Byrne, eHow Contributor Spark plug inspection and adjustment can be one way to repair a Polaris ATV.

Almost every vehicle needs regular servicing and repairs in order to continually perform at its best, and Polaris' lineup of four wheelers is no exception. The company has released dozens of ATV makes and models throughout the years, ranging from sporty racing quads to youth models to heavy-duty utility ATVs. Despite the differences between the company's many makes and models, general repair tips and troubleshooting instructions remain consistent for all Polaris four-wheelers. The electrical, ignition and fuel systems are some of the most common sources of Polaris ATV problems.

Read more: How to Repair a Polaris Four Wheeler ' eHow.com http://www.ehow.com/how_8074861_repair-polaris-four-wheeler.html#ixzz26pmQIzeh

The C.D.I. box(ignition module) controls how high the R.P.M. of the engine go.depending on what kind of machine that you ride,i have seen some aftermarket C.D.I. boxes that do not have a rev limiter.