I have a 97 yamaha wolverine and after it I ride it for about 5 min or so it starts run sluggish I was told to check valve adjustment look at the plug for running lean carb for warping plastic after hot and I still havent found anything any help would be apprieciated

 

Could be old gas, have you tried draining the tank and putting in fresh gas?
Next time it runs sluggish, pull the choke on, If it improves, then youre too lean. If it gets worse, its too rich.
Air filter cleaned, and freshly oiled?

 

yes I have tried all that and it does not seem to improve in any way I did check the temp after riding a bit and it runs right around 200 to 220 just depends on how fast I'm riding I would still appriciate any help I'm lost

 

try unscrewing the gas cap after it starts to feel sluggish... see if there's a pressure release....

 

I went outside and tried unscrewing the cap and it seem to make no difference in how it ran thanks for the info though it helps to eliminate stuff.

 

hmmmmmm



check the output of the coil when cold and then do the same when hot. something simmilar happened to me once with a street bike and it turned out to be the coil. as soon as it warmed up a little it died all together on mine. i talked to a fellow that had his cut the output by about half.

 

I guess I'm not real sure how to do that. just for info I have been outside playing with it a little I removed the air box and the filter then took it for a ride and I think that made a diff. I'm not sure what to do know because I need the air filter to keep the dirt out

 

I pulled the filter out and it seems very oily is this normal I dont think it is engine oil because it is red but I was wondering if maybe thats plugging the air inlet a little or somthing

 

My boss was wondering about timing on the 4 wheeler how do I check that or is it possible

 

Well I made an appt. at my local yamaha dealer So hopefully they can figure out whats going on. Thanks for all the info you guys have been a great deal of help.