My RS50 won't rev out?

My RS50 won't rev out, when you open the throttle up it sounds like it is flooding until you drop the throttle off and it will recover, if you open up the throttle 'very' slowly it will build up the revs. any ideas? fraser

5 Related Answers

scott rimmer

162 Answers
Posted on Mar 05, 2009

SOURCE: zx6r 1999 G2 starts fine when up to temp throttle

i would try to map the fuel system as it sounds like its totally out? ive never heard of it affecting it that much? also try replacing air filters.

tombones

3567 Answers
Posted on Apr 11, 2009

SOURCE: bike bogs for second then revs when throttling

Pull the slide out of the carb then remove the jet needle and move the clip one notch lower on the needle.

Anonymous

408 Answers
Posted on May 26, 2009

SOURCE: Bike won't rev up

Take out the exhaust canister from the cylinder and check the exhaust port.It may be jammed from burned oil.Clean it very carefully by scratching it with a bended flat screw driver but don't scar the piston.While you are in there move the piston up and down to check for scratches.Also make sure the exhaust reed valve is working properly

Anonymous

6966 Answers
Posted on May 28, 2009

SOURCE: GSXR600 wont rev up when throttle is cranked

Hi and welcome to FixYa,

Offhand, it would appear to be a carb issue. Initial suspect would be that the sliders (plungers) are not rising fast enough. This could be caused by:

varnish like coating / buildup impeding smooth movement;
poor vacuum;
leak on the diaphragm area;
clogged jet(s);
restricted air intake.

Incidentally, what is the color of the sparkplug ends?

Good luck and thank you for using FixYa.

Murtaza Akberali Versi

767 Answers
Posted on Oct 30, 2009

SOURCE: Aprilia RS 125 Power Loss

I guess youwillhaveto adjust the clutch cable so as to open the plates more at the pressure plates to let the clutch plate rotate freely instead of binding thus the low rpm.
Hope this helps!

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My RS50 won't rev out?