250-500cc wr300 2012 help to solve the next problem of the engine

[k-l-f]

wr300 2012 help to solve the next problem of the engine .

 

[k-l-f]

View: http://www.youtube.com/watch?v=z0Uw6GwRvgw

 

[Dirtdame]

Jetting too lean. Make sure you have #4 slide, 40 pilot jet, #80 starter jet, GAY needle.

 

[k-l-f]

pilot 35-40 and main 480 . needle in the middle . what else ? this is a strange problem . hot stops working , cool - running

 

[Dirtdame]

pilot 35-40 and main 480 . needle in the middle . what else ? this is a strange problem . hot stops working , cool - running

Try a 420 main jet.

Make sure that the air screw is turned out 1 and 1/4 turns.

 

[utopia]

Try a 420 main jet.

Make sure that the air screw is turned out 1 and 1/4 turns.

And try the needle in the 4th clip from the top if you are at lower elevation.

Sounds like a lean bog to me.

 

[Dirtdame]

And if you get that all squared away, and are still having problems, make sure that there is not an air leak in the reed intake boot. Seal it with RTV or find gaskets that will match it.

 

[k-l-f]

420 - I jammed the piston . this poor at high speeds .
it is all nothing , jet does not matter here . I tried a different , motorcycle hot stops working anyway .
I wonder , could this idiotic ignition ducati ?
valve as a new
the air doesn't suck nowhere
why when a little cooled down again works well ?
translate.yandex.ua — Автоматический перевод текста

 

[k-l-f]

I have exc300 2012 , it works perfectly . tomorrow I will put kin on husqvarna together with rope gas . but I doubt that this will solve the problem

 

[Long_Stroke]

Wasn't there another discussion about temperature and a bad stator? When the stator gets hot and expands it creates a gap/open circuit? I don't know how the ignition itself could work when the engine is cold and fail when its hot, but if the ignition isn't getting enough current it might not work properly.
It might help diagnose by unplugging the headlight to give the ignition more current and see if that changes anything.

 

[utopia]

How does your spark plug look?

 

[justpinit]

My 1 2012 would shut off as if i hit the kill switch when it got hot. Turned out to be the cdi. Could be your problem.

 

[k-l-f]

Wasn't there another discussion about temperature and a bad stator? When the stator gets hot and expands it creates a gap/open circuit? I don't know how the ignition itself could work when the engine is cold and fail when its hot, but if the ignition isn't getting enough current it might not work properly.
It might help diagnose by unplugging the headlight to give the ignition more current and see if that changes anything.

stator good , I shot checked visually all right . the light is off

 

[k-l-f]

How does your spark plug look?

insulator brown . changed and nothing has changed for the better

 

[K5PL5]

Did you experience this problem before the engine blew up? Is this the first time youve run the bike after rebuilding the engine?

 

[justpinit]

Iv'e never heard of an intermittent jetting prob. Plus if it was jetting the engine will generally change rpm to some extent. The cdi could've been doing something wacky with the timing when it got to a certain temp. There is no way to heat it up to test this theory though. Once i found out that the new cdi fixed mine, i tried to heat the old one up w a heat gun while a meter was hooked to it. It didn't show anything wrong!

 

[Dirtdame]

I know that if the jetting is too lean, that the symptoms will get worse as the engine gets warmer

 

[K5PL5]

Hes putting around tho. It doesnt look like its too hot outside while hes riding it either. Ive noticed my bike likes to sort of rev out longer off throttle when its hot but Ive never once had a bog like that-from 25 or so to 95 degrees outside.

 

[justpinit]

Plus the way it comes and goes seems representative of an electrical or electronic issue!

 

[Johnny105]

I would take that gas vent hose off. sounds like its starving for fuel to me.