Walbro and other diaphragm carbs on a scooter
Jul 28, 2019 0:23:55 GMT -5
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90GTVert, 190mech, and 3 more like this
Post by harleyracer59 on Jul 28, 2019 0:23:55 GMT -5
i just got a new 21mm walbro Wk-67a for my 66cc pk80 bike engine. I have a couple issues with 24ishmm wb walbro that is on it now. Well I thought I’d try it on my chopper spree first...lol.
I made a plate to bolt the carb to my ct/dio intake. Then I had to figure out how to connect the throttle cable. After a couple beers and a joint later, tada: it runs great. Tuned it in 5 minutes. It’s nice turning a screw instead of having to drop the bowl and change a jet. I tapped a fitting below the reed block for the walbro fuel pump. It needs negative and positive pulses to work properly. I got more rpm over the old carb that was previously on it. Motor is a 87 Af05e with a metrakit 47mm big bore. It starts first kick and so far I think I’m gettimg better gas mileage. Not running an air filter at the moment and had no problems tuning it or any lean conditions.
I made a plate to bolt the carb to my ct/dio intake. Then I had to figure out how to connect the throttle cable. After a couple beers and a joint later, tada: it runs great. Tuned it in 5 minutes. It’s nice turning a screw instead of having to drop the bowl and change a jet. I tapped a fitting below the reed block for the walbro fuel pump. It needs negative and positive pulses to work properly. I got more rpm over the old carb that was previously on it. Motor is a 87 Af05e with a metrakit 47mm big bore. It starts first kick and so far I think I’m gettimg better gas mileage. Not running an air filter at the moment and had no problems tuning it or any lean conditions.
