Hi guys im new to page but have looked here before.
I have a 1991 yamaha moto 4 2wd 350. I was just using it a day ago n just went to start it today n wouldnt start. Ended up killing the battery. But i checked all connections. Have spark and plug is wet. Any other suggestions would be great as i need quad on weekend to move around as i have a buggered foot. Thanks

 

Try the easy stuff first. May be as simple as a new plug even if the old one shows spark. Plug being wet can come from worn parts in the carb,dirty air filter,valve clearance too tight,etc. Just eliminate one thing at a time.