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Bad Flat Spot
Posted: Mon Nov 27, 2006 5:23 pm
by Brumby Boy
Ok over the last few weeks my brumby has been developing a very bad flat spot. it seems to be between 60 to 80km/h regardless of throttle position except below 1/4 throttle. if i accelerate very gently it dosnt seem to be as bad. has gotten worse since i WAS using ethanole but have now gone back to regular unleaded approx 4 tanks and it is still getting worse. i think it may be the ethanol has eaten the rubbers in the carb and or the fuel filters all need replacing. wat do you all think?
Cheers,
Turtle
Posted: Wed Nov 29, 2006 10:57 pm
by Suby Wan Kenobi
The ehtanol may have dislodged some crap hiding in the carb and it is now partially blocking a jet now. If you dont remember how old your fuel filter is you should consider replacing it anyway. Spray some carb cleaner down the throat to clean it up other wise it pull the top off the carb and see whats going on.
Posted: Sat Dec 02, 2006 7:13 pm
by cameron
Replace your pumper valve. It is the thing that pokes out of the top of the carb and is connected to the throttle by a linkage. Gasmiser do a cheap replacement.
Posted: Sun Dec 03, 2006 10:27 am
by Brumby Boy
sweet thanks guys
i havnt changed it since ive had the car so god only knows how old the fuel filter.
im not gunna bother fixing the carb as my ej should be done early next year ill just live with it i think.
Thanks again
Posted: Sun Dec 03, 2006 5:20 pm
by EJ22Ute
are your vacuum advance hoses all ok?
Posted: Mon Dec 04, 2006 7:59 pm
by Brumby Boy
Dunno havent looked
ill have to do it when i have light tomorrow
Posted: Mon Dec 04, 2006 8:25 pm
by BaronVonChickenPants
I read somewhere to (with the engine running) spray aerostart or WD40 or something around your vacuum hoses, not on them, just let it vapourise near them, if your revs change than a hose near there has a vacuum leak.
Jordan.