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Old 03-18-2011, 08:38 AM   #556
Gnarly Adventurer
folmonty's Avatar
Joined: Jun 2002
Location: Danville, CA
Oddometer: 282
Wubya carb & CARB rework

Weather was starting to turn good so put the Wubya project up front. After 11 years, only one battery and virtually nothing else the pilot jets were boogered up. So decided to ace the air suction system, change jetting slightly, and ace the California Air Resources Board charcoal can. The can is actually tied to the air suck system so makes sense to do both. Also drilled out the air screw cap. After doing the same to our ZRX and KLR the project is much the same. For those wanting to give the Wubya a quick easy jetting fix no need to pay $75 to Dyno-Jet or others. Just buy 4 M4 stainless flat washers and insert under the stock needle. Works like a charm emulating a change of one clip notch down on an adjustable needle. This is for a stock air box and pipe. Anyway, the updates went off without a hitch. For those who haven't seen a W air box out of the bike it's quite a unique design.

Unique clam shell airbox

Here's source of the trouble. Rough running, slow warm-up and mucho hesitation = pilot jet troubles

Pilot Jet

Also installed a Super Brace on the forks -

Super Brace

Look at this pile of crap we're fortunate enough to pay extra from here in Kalifornia. And the air box snorkel isn't even in the mix - CA smog BS

Anyway, she runs better than new with the jetting change and EPA crap removed. Highly recommended!

Needle valve with jetting shims
Nor CA
TS, XLH, GT500
R5, RD (x's3),W, ZRX
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