The Yamaha Timberwolf 250. Dear ATVC: I have a Yamaha Timberwolf 250 and am wondering if anyone could tell me the proper timing & valve lash spec? From the service manual for the Timberwolf 250: Intake: 0.05mm~0.09mm (0.002″~0.004″) Exhaust: 0.11mm~0.15mm (0.004″~0.006″) These specifications apply to top dead center on the compression stroke. Be sure to […] More »

From when trikes ruled the Earth. Dear ATVC: I have a Kawasaki KLT250 Prairie and can use a wiring diagram. Also is it possible to purchase an aftermarket CDI box for this make and model? We’ve got the wiring diagram for the KLT250 Prairie (the entire series) for you below. While Kawasaki ceased production on […] More »

Dear ATVC: Over the weekend my Polaris Trailblazer was running great for hours. Then I heard a pop and it wouldn’t climb hills. All you hear is a grinding noise. The noise is coming from the right side. Just noticed today that the chain is extremely tight! Help!! Questions like yours are very difficult to […] More »

Who you calling Bad? Meet Sheba, the pet name given to this Honda ATC250R – combining “she” with “bad”. We don’t mean to suggest that machines can decide whether or not they like the name they’ve been given but considering the abundant skill on display here only for it to end with the rider getting […] More »

How much compression should the 250 single be rocking? Dear ATVC: I have some questions about the 1992 Kawasaki 250 Mojave quad top end compression – What should the compression be normally? What should the compression PSI be without factoring in the compression release? Is there anyway to temporarily bypass the compression release to check […] More »

How to freshen up all the fluids on your Quadrunner 250. Dear ATVC: Greetings everyone glad to be on this network. Does this quad have a drain bolt to change the shaft drive oil? The Quadrunner 250 doesn’t use a separate oil supply for the final drive but it does have front and rear differentials […] More »

We’re hoping this one gets the ball rolling. Again. We’ll come right out wit hit – manual clutch, full sport ATVs are among your ATV Connection’s favorite machines ever made. You can imagine our disappointment, then, when the 450cc premiere race class nearly evaporated entirely, leaving only Yamaha to hold down the fort (after a […] More »