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View Full Version : Tri-Moto 125 bogging at higher revs.



benji_snod
01-08-2018, 10:20 AM
So I’m not much of an engine tuner but I’m having problems with this Yamaha. I’ve had the whole top end tore down. Cleaned everything up. Had the carb apart. Cleaned everything, adjusted float height because it was way out. The problem is at higher revs it’s wants to bog out and pretty much stall until I let off the throttle.

Here’s what’s been done to it tho. (Got it in this condition). Oil injection has been deleted so I blocked off the lines to the carb properly as far as I know. Also the choke cable is rusted solid. Tried soaking the whole cable in wd-40 and that failed. So I’m adjusting the choke right at the carb.

It’s fires first pull and idles like a dream. So I don’t know if it’s flooding itself or starving for fuel or what the problem is.

Sorry for the long post but any help is appreciated.


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