buzzkill
Mad?scientist
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- SLO California
Racing Karts use the same type of PUMPER carbs but are larger in size 100cc + look VERY similar
Carb rebuild, and trouble shooting
- Thread starter Seandonato73
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- 13,102
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- #22
Yeah none of the carbs any of us use are really rc specific, or specific to any other 2 stroke for that matter. It's more of a what works best for the application then these carbs arw all that's out there.
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- #23
UPDATE:
I wanted to address an issue that pops up, on occasion. The dreaded half full primer bulb. Weve mainly been seeing this as a running issue on the losi 5ive B platform. After some back and forth trial and error with a forum member I think we discovered one of the issues this may be happening. He had a new carb. So we quickly ruled out the normal fuel line issues and supply problems. Ruled out the manifold issue, and ended up going internal. He posed the question to me about metering lever height. How it affects the fuel being let into the carb. Basically it's more or less the float on a normal carb, and as I have previously stated, one of the most critical components in the proper carb set up. He found that the factory setting of the metering lever was too low. Thus not allowing the proper amount of fuel into the carb. So as a note don't assume a new carb is set up right.
I wanted to address an issue that pops up, on occasion. The dreaded half full primer bulb. Weve mainly been seeing this as a running issue on the losi 5ive B platform. After some back and forth trial and error with a forum member I think we discovered one of the issues this may be happening. He had a new carb. So we quickly ruled out the normal fuel line issues and supply problems. Ruled out the manifold issue, and ended up going internal. He posed the question to me about metering lever height. How it affects the fuel being let into the carb. Basically it's more or less the float on a normal carb, and as I have previously stated, one of the most critical components in the proper carb set up. He found that the factory setting of the metering lever was too low. Thus not allowing the proper amount of fuel into the carb. So as a note don't assume a new carb is set up right.
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- 13,102
- Thread starter
- #24
More primer bulb Info. I take no credit for the video, it's long. But shows its purpose, and how fuel flows through the carb.
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- 17,175
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- Crafers South Australia
Sean has order a fresh ? to beat??
??
Bud we all luv you contributions round here???
??Bud we all luv you contributions round here???
- Messages
- 13,102
- Thread starter
- #26
Here is the air purge system our carbs use. Screen shots taken of the walbro service manual.
Getting old having the same questions, when I've gone to great lengths to cover the normal carb issues.Sean has order a fresh ? to beat??
Bud we all luv you contributions round here???
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