Honda ATV Forum banner

300ex idle issue

3037 Views 3 Replies 3 Participants Last post by  shadetree
ok so i got this 300ex in on a trade it starts right up but idles really really high i got a carb off my buddys old one cuz the idle screw was broken and it still idles the same speed tryed turning it down and nothing... any ideas?
1 - 1 of 4 Posts
if that don't solve your problem..check to make sure you don't have any cracks or holes in your intake boot ( carb to cylinder )..this will cause a fast idle also.
1 - 1 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.