flat spot

[twitch1806]

took my bike out yesterday and in the low revs i have a major flat spot which when on track im have in to drop into first on some corners just to keep the revs up. could it be the mixture of 2 stroke. or any other ideas

[Wafer_Thin_Ham]

Has it always done it?

Lots of 2 strokes seem flat low down (How low is low?)

Also suspect the power valve seizing if it has one.

What bike is it?
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[twitch1806]

only had it 2 days so dont know. its a kmx 125. the band seems to kick fine when revs are up just seems flat at low revs

[deliriousthun...]

Have you ridden a 2 stroke before

Feeling gutless at low revs goes with the territory, you just need to treat the throttle like an on off switch
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[RudiRulez]

most 2-strokes are pretty gutless down low, i just try to keep the revs above 7.5k if i want some power but if im just cruising around town and what not then about 5-7k is fine.

[twitch1806]

the only 2 stroke i had was a ts50 bout 6 yrs ago lol. as for this bein a crosser not a roadbike i tend to keep her in the high revs on a track anyway. but when kicken her over she takes a few kicks plus when u kick it u have to slowly throttle it till the revs are up or she dies once u have the revs up its fine revin up and lettin them come down. guess its just me lol. might have the carb off and clean her out . maybe thats just the way the bike is just thought it was strange as a mate has a yz 125 and that excelerates fine and goes like hell

[buddy]

sounds like its running lean for some reason. blocked jets, kinked fuel pipe etc etc


put it this way, does it struggle to pull away without revving it hard?
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