1991 ZXR250 hesitating at 14,000 rpm

[Darealsytfromdagheto]

My 1991 zxr250c is hesitating at around 14,000rpm it feels like its popping kind of. Also sometimes it takes a while to start and other times it starts right away. Any ideas?? Thanks

[Akzle]

da real shit? Shyte?
Im uncertain.

[Darealsytfromdagheto]

da real shit? Shyte?
Im uncertain.

Nah im just da realyst from da ghetto

[Darealsytfromdagheto]

da real shit? Shyte?
Im uncertain.

Nah im just da realyst from da ghetto

[caspernz]

My 1991 zxr250c is hesitating at around 14,000rpm it feels like its popping kind of. Also sometimes it takes a while to start and other times it starts right away. Any ideas?? Thanks

Meh, back in the dark ages when I had a teenie weenie rice rocket thingeemajig I had a secret remedy for this problem. Nowadays we calls it changing gear

[Akzle]

Nah im just da realyst from da ghetto

ahh. The ghetto. New Zealand.

Sorry sugar, you clearly dont understand some of the words youre trying to spell.
Despite the third world poverty rates in nz, we have no actual 'ghettos' and those who do live in real ghettos would be offended by your twisted panties.

[Rhys]

Put a bottle of carb cleaner and a fresh tank of gas and give it an Italian tune up

If that doesn't work take it to a bike mechanic and get it tuned up

[SNF]

Put a bottle of carb cleaner and a fresh tank of gas and give it an Italian tune up

If that doesn't work take it to a bike mechanic and get it tuned up

Lol "iItalian tune up".

Seriously though, possibly an air leak? My bike did something similar in upper revs 12k + one day I had the tank off and discovered the collars which hold the intake pipes from the engine to the airbox was broken off and it wasn't sealing. Replaced them all with shiny new hose clamps and its better.

Does it back fire alot when downshifting?

[Darealsytfromdagheto]

Haha the name is just a joke btw. And okay cool, ill try that. The ram intake hoses have cracks in it but that wouldn't have anything to do with it?

[husaberg]

The ram air intakes are for show.
if you are getting hesitation and popping as others have said it indicates lean.
This could be blocked jets (varnish) or air leaks in the mainifold or intake boots or even the carb balance screws.
It could also be something else, diagnosis over the internet is pretty hard.

[Darealsytfromdagheto]

The ram air intakes are for show.
if you are getting hesitation and popping as others have said it indicates lean.
This could be blocked jets (varnish) or air leaks in the mainifold or intake boots or even the carb balance screws.
It could also be something else, diagnosis over the internet is pretty hard.

Sweet man, i'm going to clean out the carbs and see what difference that makes, it goes through the rev range perfectly until it gets to about 14,000rpm and then it just feels like its limiting almost.

[husaberg]

Sweet man, i'm going to clean out the carbs and see what difference that makes, it goes through the rev range perfectly until it gets to about 14,000rpm and then it just feels like its limiting almost.

The hard starting also points towards lean, but it could be also ignition faults coils braking down and a million other stuff.

[Darealsytfromdagheto]

Yea i understand what you mean by diagnosing it by the internet, Well i'll clean the carbs and if its still happening i'll take it to a professional. Thanks bro

[Darealsytfromdagheto]

Lol "iItalian tune up".

Seriously though, possibly an air leak? My bike did something similar in upper revs 12k + one day I had the tank off and discovered the collars which hold the intake pipes from the engine to the airbox was broken off and it wasn't sealing. Replaced them all with shiny new hose clamps and its better.

Does it back fire alot when downshifting?

Nope doesn't backfire when downshifting

[Akzle]

Sweet man, i'm going to clean out the carbs and see what difference that makes, it goes through the rev range perfectly until it gets to about 14,000rpm and then it just feels like its limiting almost.

fueling. Set your floats higher.