How do you remove seat from a KFX 90 four wheeler

if it broke the timing chain it might've bent the valve

"ATV" service and repair manuals - CRXSi.Com

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Take the float bowl off the carb. Pull the pin that holds the float on. The needle is attached to the float. The needle just came out of the needle seat. The needle seat can now be pulled out. This is the fun part. Are you really sure it need replaced? If it is needing a good cleaning, take some Mother's aluminum polish and a cotton swab and put it in the seat and spin the heck out of it. It will polish up nice. Be sure to clean with carb cleaner to get any extra polish out before use.. reassemble.

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.

when engines not running turn the gas off . And it sounds like you need to adjust your throttle pin that goes into the carb take the clip off the pin and move it down one good luck

check coil

obviously its a problem with the float. could be a bad needle or seat also.

it should only be 4 to 6 screws holding it on the right side and 1 wire on the left side that would hav to be removed and it should be rtight under the seat on top of everything else

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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