I finally got to max out my 700 yesterday 64 mph before the rev limiter kicked in. Problem is as soon as I slowed down she started running bad, barely made it back to the house. It would idle fine, but as soon as you gave it gas it would die. Now it will not start at all. I know is getting plenty of fuel going by the wet plug, however the spark is not right. When you ground the plug to the block it is weak and very inconsistent when you pull it away it lights up great? Pulled the fuel pump fuse to keep it from flooding any worse while checking things, and shot starting fluid in the intake, no fire. I really do not think that I screwed up the top end cause it still seems like everything is in time. I am thinking it must be ignition, just not sure what part yet. Any ideas? Quad ran great before this and only has 800 miles.

 

Fixed. Bad plug. Never seen one fail like this before, going to keep a spare with the quad at all times now..

 

Yeah Plug fouls easy now days..I was my first guess...Plug is an part of timing,,so when plg was misfiring [not firing] everytime thats what was causing the plug to be wet...Glad yo got back on the trail,,,

 

Can someone check there owners manual (p.o. lost it on me) and double check the plug gap. Charts I have seen say .036 the original plug was at .028.

 

hope by now you already found the plug gap by now. if not the manual says."028-.031 in"