03-14-2009, 09:40 PM #1
44mm i body fuel pump check valves
does any one know if the black line on the check valve face up or down
03-14-2009, 10:31 PM #2
- Join Date
- Jul 2008
- Chesterfield Virginia USA ~ On the James River~
The directions that were included in the rebuild kit say, the marker line faces UP.(The side of the disk that the marker line was actually drawn on)
03-15-2009, 02:11 AM #3
03-16-2009, 08:20 AM #4
03-16-2009, 08:33 AM #5
The plastic material they stamp these from comes on a roll. The line is there to mark the curvature of the roll. I have seen this line marked on all the various Mikuni kits and check valves I have purchased.
03-16-2009, 09:21 AM #6
03-16-2009, 09:56 AM #7
I mean clearly the fuel would not be pumped into the carb and the ski would fall all over itself if it was a case of it leaking or "not sealing". That flapper valve is susposed to keep gas from backfeeding away from the jets, not through them...so I would assume it could be picked up with a loss in rpm as in lean condition right?
03-17-2009, 07:10 PM #8
Took mine "all 5" apart...no lines....must not be Gen Mikuni parts that I got. I ordered new...for all 5 carbs...although not sure it really makes a difference....?
03-17-2009, 09:04 PM #9
03-19-2009, 08:24 PM #10
Swapped all 5 carbs out tonight....what a beach....once the engine is in the hull with the Raider...
I'm not sure if it reallys matters "and don't think it does"...but I guess I took the most safe route.
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