Personal Water Craft Forum banner
1 - 3 of 3 Posts

·
Registered
Joined
·
5 Posts
Discussion Starter · #1 ·
I have a 2008 Ultra LX with about 50 hours on it. Running great until this week when I noticed that it would hesitate when accelerating to full throttle for a moment and engine had a miss when at idle. Pulled the spark plugs and they looked OK, but replaced them anyway. The hesitation and miss are gone and seems to have full power, but now max speed is about 42 MPH when it used to be about 52. Max RPM is 6500.
Would really appreciate any suggestions on possible cause for decrease in speed.
 

·
Registered
Joined
·
3 Posts
I have a 2009 Ultra LX and had a similar issue, also at around 50-hours. The problem turned out to be that the connection from the exhaust collector into the muffler was leaking. The end of the collector corroded to the point where it wouldn't seal and it blew out the silicone boot. Exhaust was leaking into the engine compartment and starving the engine for air.
 
1 - 3 of 3 Posts
Top