Hi all, I have a 1989 TRX300 4x4 which I am having spark issues with. At first I thought it was the ignition coil and have replaced that with a brand new one but still nothing. next step was the CDI. With the spark plug removed I can only get a weak spark when the starter button is first...

Many people believe that carbs are very complex, but with a basic understanding of how carbs work, you will have no problem with performing your own carb adjustments. First off, there's 2 basic fuel related problems. You either have a rich mixture, or a lean mixture. A rich mixture is...

Here is a VID i made of what the right exhaust may look like if you dont take the decompression mechanism into consideration when adjusting... Here is the proper procedure, its also in my VID description.. THE CORRECT PROCEDURE TO ADJUST THE VALVES: 1. Remove the spark plug and both allen caps...

2007 trx90. The green neutral indicator light recently stopped coming on even when in the neutral position... After clicking the shifter up and down a few dozen times I can get it to come on and only then will the quad start. Is this a neutral safety switch issue or could it be something else

I have a 1997 fourtrax 300 I'm working on building it has a brand new carb on it it will start up fine with no problems idles great and runs good when ur in the throttle but if it is sitting and idling and u rev it up it sputters when you first give it gas then it's fine same way if your driving...