Personal Water Craft Forum banner
1 - 6 of 6 Posts

·
Registered
Joined
·
59 Posts
Discussion Starter · #1 ·
Just pulled these after doing a lot of WOT riding at 17 psi boost on my F15x with a vf22 turbo. Running four bar fuel pressure at idle with boost referenced FPR. Pulls like a bat out of hell
 

Attachments

·
Registered
Joined
·
59 Posts
Discussion Starter · #3 ·
All four basically look identical. I dont have any black specks or spots on the ceramic portion that would indicate detonation etc. to me they look normal. I dont have an afr gauge on the ski so this is all i have to indicate if its lean or rich.
 

·
Premium Member
Joined
·
5,060 Posts
For a injected four stroke they don't look to bad. The top picture makes it look rich, while the bottom looks just a tad lean, but efi runs on the lean side. If you can richen it up some, it won't hurt it a bit. How does the exhaust smell ?
 

·
Registered
Joined
·
59 Posts
Discussion Starter · #5 ·
Ive got it as rich as it could be with my current injectors and regulator. The top pic looks a little darker just become of the angle i took it. All plugs look basically like the second pic. Rode 43 miles today at 17 psi boost. Zero issues. Ill check plugs again tomorrow b
 
1 - 6 of 6 Posts
Top