inotocracy said:My girlfriends XR100 will do that if it isn't warmed up (throttle acts like a kill switch if you crank it all the way), but once its warm there isn't an issue.
destructo said:It could be one of 2 things, a lean air bog or a rich bog, I had a Husky dirtbike that had a lean air bog, aggravated the sh*t out of me, try and lean it and see if it crispens up, its easier to raise or low the needly clip setting and you can tell, the closer you raise the needle clip to the top the leaner it will be on topend, the lower you go with the clip raises the needle higher when you nail the throttle, the richer on topend, each clip setting is equivelent to 1/2 a main jet size. You dont need a jet kit for a 2 stroke, I always just order mains and pilots, I would reference stock jet settings and reinstall for that bike and adjust from there. Heres a really good site to order your jets from.....www.motorcyclecarbs.com
Correctschmanman said:so, just to clairify, the more of the needle that sticks into the needle jet tube, the leaner it will be, right?
It will lean it out roughly from 1/4 to 3/4 throttleso, adjust the needle down? wont that make it leaner throught the whole throttle pull?
schmanman said:it's strange, the bike is a beast, runs perfect, until you hit full throttle.
QUOTE]
I'm not sure I understand this part.
So if you are riding along at middle rpm in 3rd gear, and whack the throttle full open, what happens?
Does the bike just instantly bog, gradually work through the bog and then accellerate to high rpm?
Or does it accellerate great until you get to high rpm, and then it falls on its face?
Which bike in your profile are you talking about? FWIW, both of them are non-power vavled, small displacement two strokes. If the bike 'runs perfect' most the time, the current jetting might be the best compromise, as long as you don't open the throttle full when the motor can't pull it.
dirt bike dave said:schmanman said:it's strange, the bike is a beast, runs perfect, until you hit full throttle.
QUOTE]
I'm not sure I understand this part.
So if you are riding along at middle rpm in 3rd gear, and whack the throttle full open, what happens?
Does the bike just instantly bog, gradually work through the bog and then accellerate to high rpm?
Or does it accellerate great until you get to high rpm, and then it falls on its face?
Which bike in your profile are you talking about? FWIW, both of them are non-power vavled, small displacement two strokes. If the bike 'runs perfect' most the time, the current jetting might be the best compromise, as long as you don't open the throttle full when the motor can't pull it.
the yz/it frankenstien.
whenfoxforks-ruled said:Timing is okay? When it starts bogging, pull in the clutch and kill the engine. Look at the plug, wet or dry? Cut the threads off your plug, rich or lean?
yep, timing is good.... would'nt it run rough throughtout the entire rpm range if the timing was off?
I'll check, but I am 99% positive the biek is rich......
of course, it's that 1% that can easily kill your engine, so it's worth a look-see....
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