Yamaha Mountain max 700 problems

and before the videos was taken i had just been on a short drive with it. i have changed the ignition coils and the cabels for them.
 
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I can't tell much by the video except for the sound.

It seems to idle fine, but bogs whenever the throttle is opened. There did seem to be a couple times when it reved up a bit . . .

I would guess that either the reeds are bad, your carbs are clogged, the fuel level in the carbs is wrong (floats), or there is a fuel delivery problem.

There could also be an electric issue - stator, wiring, coils, etc.

I would pull the carbs, fuel pump and reeds and inspect them very closely. Then check the state of the engine itself (compression, leakdown, etc.)

After that I would start testing the electric components.

Also make sure you have good gas, new plugs, and the oil pump is not stuck open.
 
hahaha thats exactly what i mean.... QUIET! i have changed the coils, and the reeds looks good, i´ll take a look at the floats! i have removed the oil pump so i put the oil in the tank, tnx for the tip! i ha
 
bad floats or at least thats what its been everytime it happened to the blaster or suzuki srx hasnt had that problem yet(just get a crab rebuild kit or float and needle valve at minimum i bet problem goes away)
 
i have checked the floats today and they look fine, but i ride at 400 meters (1300 ft) and my main jets is (145,145,145) can that be the problem? or would that just do so i lose alot of power, I have not had the time to test it proper so i dont know how the spark plugs looks like (i have hauck pipes)
 
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