My son just bought a suzuki 150 1990 (from what I get from the vin) ran great for a couple of days and is starting to bog down in high ebd, i have been searching forums and the same thing i am reading is clean carb out ,plug looked good butwill replace that also,,, any other ideas i should do . and also looking for 2 front tires for this ,i have 2 spare with rims but don't fit this machine ,, these are at21x7-10 with rims and brakes.. if you are close to burlington ont and want to do a trade ,email and we can set up..

 

Sounds like it has just been sitting for a little while, as with what you read clean the carb and replace the plug and go from there, the only other thing that it could possibly be is running to rich but that is very doubtful

 

Is the filter clean. if it gets plugged up with dirt it will do just what your saying the quad is doing.

 

Thanks for replys,, we found out it was bad gas,, runs great again,,