works fine on full throttle but drop to half throttle =(

[firefox]

Well i had a problem with my engine not running at all well i got it started and it run fine until i dropped the revs below 6000rpm which is about half throttle, i was thinking maybe the throttle needle as this is what comes into use up to half throttle. Any help would be great


thanks in advance

( sure someone keeps breaking it everytime i get it fixed )

[puremagic72]

Does it sound a bit "poppy". cause mine is also doing this.

Baz.
____________________
Make; cbr929cc blade Year; 2001
Gsxr 750 2000, alstare Corona, Current bike 1999 R6
(1) Kids in the back seat cause accidents; accidents in the back seat cause kids.

[firefox]

yes lol, well my mate 125power is ment to be comming next week to look at it. i give up had the whole engine stripped down didnt sort it

[puremagic72]

Wat bike you got?

Baz.
____________________
Make; cbr929cc blade Year; 2001
Gsxr 750 2000, alstare Corona, Current bike 1999 R6
(1) Kids in the back seat cause accidents; accidents in the back seat cause kids.

[edd]

defo sounds like a carb problem, its not unknown for the needles on scooter carbs to get stuck. On most its a basic slide carb, the needles get stuck on the spring around them (or at least they have for me) though usually when they do they stick the throttle open. Id be checking your jets for a blockage if I were you, it can happen fairly easily with crap out of the fuel, especially when you have such small size jets.

good luck with it
____________________
Bluespark Automotive - Diesel Tuning for Performance and Economy

[Barry_M2]

Blocked pilot jet(s) i'd say.

Remove your carb(s), get the float bowls off and revmove and clean all the jets.

[firefox]

Hi i had the carb off and none of the jets are blocked.

[puremagic72]

Might be the exhaust, maybe needs de-coking, or even a small hole somewhere.

Getting mine checked over next week.

Baz.
____________________
Make; cbr929cc blade Year; 2001
Gsxr 750 2000, alstare Corona, Current bike 1999 R6
(1) Kids in the back seat cause accidents; accidents in the back seat cause kids.

[firefox]

my cable had slid off the needle so mines fixed oh and it was also running far 2 rich.

[the grim reaper]

Could be the reeds playing up, dunno really, without more info. Could also be a sticky carb slide, OK on full throttle because the butterfly is open, flooding on part throttle because not enough air.

Cheers

Grim
____________________
Adverts don't always work: Remember that advert, where the army are running across the desert and they have a wounded man on a stretcher. They get to a ravine, the bridge is down and a caption pops up that says, 'What are you thinking?'. I don't know about you but I was thinking, 'Christ, I'm glad I'm not in the f***ing army'.

[sickpup]

What air filter are you running?