Normal norm
New Member
Picked up a k4 with what appears to be a swapped carb, looking to get an Id so I can get a rebuild kit.
Ct90 carb id
- Thread starter Normal norm
- Start date
hrc200x
Active Member
The flange says 88B right? I searched for that and didn't find anything. Believe Honda/keihin started the recessed nut to attach carb to flange in the 90s so its probably that or newer. I wonder if it sized correctly for a 90cc engine or if its off a 70cc. Often the brass parts/jets can be cleaned and reused inside a carb. The rubber parts are probably whats bad is probably interchangeable with many other carbs, even china ones.
Normal norm
New Member
88B D OB21 is what is stamped on the flange. Pics are matching up to a 78/79 carb. Hoping that's it as I ordered a rebuild kit for it
b52bombardier1
Well-Known Member
Yours is also missing the black plastic cap over the choke plate shaft and I can't see the choke lever arm. Those parts won't be in the rebuild kit.
Rick
Rick
Normal norm
New Member
I ended up buying a keyster kit that was 85 percent complete to get all new seals. Jets were clogged as could be, installed inline fuel filters. Some of the keyster kit wasn't usable as it was different so there must be two versions of this carb. See attached.
Does anyone know the purpose of the rubber cap pictured near the throttle cable? It is a nipple that pours gasoline if removed...not understanding it's use.
I leak fuel when on side stand and am looking for clues.
Does anyone know the purpose of the rubber cap pictured near the throttle cable? It is a nipple that pours gasoline if removed...not understanding it's use.
I leak fuel when on side stand and am looking for clues.