Chadburgess
Recruit
- Joined
- May 15, 2011
- Messages
- 2
Ok so I'm working on a Yamaha jet boat. It has two "jet ski" motors in it each motor has 3 carb. One motor runs great but the other will only turn 4500 rmp and it takes a while to get there. Carb 1 has a lot a lot of blow by coming out of the carb we've cleaned the carb found nothing, changed plugs to hotter plug and nothing. Compression is fine. Check spark with checker and it's fine. These are 2 strokes and mix 50:1 mix yourself not injected. The other two carbs have very little blowby just this one. Somebody please help. It's a 98 model if someone needs to know.