I need a Walbro WJ carb guru

exSW

thinking of old guys’ balls
Oct 8, 2013
19,165
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Out there
WP_20190605_001.jpg Won't transition warm. Perfect cold. All new fuel components. Metering lever set to spec. Idles perfect.
 
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exSW

thinking of old guys’ balls
Oct 8, 2013
19,165
139,551
113
119
Out there
Somebody on anther site said to check the color of the pump thingy in the carby,, the blue clear ones were suspect tan seemed to be best...
Had the said symptoms.
But WTF do I know,,,EH!
Yes. It has the black one in there.
 

exSW

thinking of old guys’ balls
Oct 8, 2013
19,165
139,551
113
119
Out there
Does it stumble to wot or just wont go to full tilt?
From dead cold it's fine then just gets progressively worse until it won't transition at all. One long cut like shown above and it wont transition at all. And it will idle perfect the whole time.
 
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Plan-b

Well-Known Member
Feb 1, 2014
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I've given them the bake treatment, it works sometimes. After you bake, try it out. If it works give it a dip in varnish.
I have one that works fine for about a tank, once it gets heat soaked on the refill it starts crapping out.