Hey Skool, motorcycle carb question

phatdaddy · #1 01-14-2006, 02:35 AM

I'm working on a 1975 Honda 100 that has not been cranked in 30 years. The carb is really gummed up and I can't get the throttle barrel free in the carb. Do you know any slick tricks for freeing it up. I didn't want to soak it in carb cleaner until i get it all apart and remove the o rings and gaskets. Parts guy said to soak it in "deep creep", but i have never used it before. Any thoughts, thanks.

chumbucket · #2 01-14-2006, 10:14 AM

I think that soaking it in any sort of penetrating oil would work at freeing up sticky carb mechanisms. But, you're probably just prolonging the inevitable that you'll eventually have to tear it down and rebuild because of varnish buildup. If not, it'll most likely continue to give you troubles.

Skools Out · #3 01-14-2006, 01:22 PM

i've had Jetski carbs do that some you canfix some not. take it apart thenclean the body with carb or diskbrake cleaner by spraying it. Don't soak them in oil it will stop up the air and fuel passages in the body. Some carbs have a wauding or packaing around the shaft at the body. if so it may never free up but use 3in1 oil on each side around the shaft and work it alot very fast it will finally free up we hope. Some just have a nylon bushing in there those never get loose. and some are just metal on metal which will get trash in them and you just oil it as well with 3in1 oil and work it really fast till it will turn super easy too. Once you have it working good and has been oiled alot re-clean it with carb or brake cleaner.

phatdaddy · #4 01-14-2006, 07:02 PM

I am already to take apart and clean, but the throttle cable goes through the top of the carb and through the top of the barrel slide. I can't get the carb loose from the bike because of the cable. i checked with the local honda dealer and parts are non available, so I have to be real careful with the ones I've got. This carb dosen't have a shaft, no butterfly. I think it is metal on metal so I will try the oil. CB & Skools thanks for the input. I,m almost through with re-wiring the V-20 so I thought I needed another project till spring.