08-13-2008, 11:01 AM #1
Building 580 Yellow Engine - Compression Question
I am building a 580 Yellow Engine for a friend. He wants the ski on the water for real cheap. We bought it with a bad crank and piston, so we are slowly building it up with used parts we find locally and on e-bay.
The ski will be used just for cruising around.
My question is about compression. Someone told me that when you buy a SBT engine, they lower the compression for the fact that they use questionable parts, people use questionable gas, and for added reliability. ( Don't want to get into a discussion about SBT engines)
Should I try to lower the compression on this unit by doubling up on the cylinder base gaskets? I really don't care if I loose power, just looking for a slow bullet proof ski that can run regular gas.
08-13-2008, 12:02 PM #2
I'd just use the thickest base gasket... probably not a good idea to use two gaskets! SBT engines are junk!
08-13-2008, 12:06 PM #3
Just put it together,it will be fine.
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By HDMM in forum 2-Stroke PerformanceReplies: 1Last Post: 09-05-2009, 10:47 AM
By rob2337 in forum 2-Stroke PerformanceReplies: 1Last Post: 04-08-2009, 08:57 PM
By christian gpr in forum Yamaha PWC Performance (2-stroke)Replies: 75Last Post: 04-23-2006, 02:52 AM
By ABBOTT in forum Yamaha How To & FAQsReplies: 0Last Post: 02-15-2006, 10:30 PM
By BrAinZ in forum Sea Doo Open DiscussionReplies: 7Last Post: 11-26-2005, 03:41 AM