Thread: RUST On #3 Cylinder???
05-15-2009, 05:58 PM #1
RUST On #3 Cylinder???
I'm a moderator at the Yamaha Jet Boaters board. There has been a lot of discussion lately about rust forming in the #3 cylinder of the 4-stroke engines.
We've had a number of people that have found rust on that spark plug. This week, we had a member that actually suffered an engine failure because of it.
We believe that when these engines stop, it is usually with the #3 exhaust valve in the open position, which allows moisture from the exhaust system to enter the cylinder.
Just wondering if anyone else has experienced this. Any thoughts/ideas would be most welcome!
05-15-2009, 06:55 PM #2
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By buddydoo in forum 4-Tec PerformanceReplies: 16Last Post: 05-31-2006, 05:22 PM
By GPR FL in forum Yamaha PWC Performance (2-stroke)Replies: 0Last Post: 04-03-2006, 02:03 PM
By mxl16 in forum 4-Tec PerformanceReplies: 36Last Post: 12-03-2005, 05:15 PM
By mxl16 in forum Sea Doo Open DiscussionReplies: 5Last Post: 10-01-2005, 12:44 PM
By Prez in forum 4-Tec PerformanceReplies: 9Last Post: 08-04-2005, 09:44 PM