Keihin 016.039 PJ 34mm Carburetor

I bought this to replace the original carburetor on my 1988 Honda CR125R. The float needle seat was worn out so fuel continued to flow and flood the engine. I couldn't find a new float needle seat so I decided to just buy a new complete carburetor. I had to re jet the new one to stock specs and now the bike runs like it should.

Just got it and seems to have all the Identification marks like the videos show on YouTube.

Trx250r 1986 perfect match

I should've listened to the other reviewer's it really does not idol!

Perfect

this thing is junk! no matter what i do, it will not idle... i bought this to replace the stock PE 30 carb on my honda '84 250r when the nylon tang keeping the slide from rotating broke. i should note that the trike ran and idled fine up until the original carb broke, i even temporarily repaired the PE, and it still ran fine. i put this PJ on and it fires up fine, revs fine (after some jet changes) but will not idle. i have adjusted the air mix circuit and the "idle adjust" in every combination possible with no luck. the PJ has no true idle adjust, it simply has i threaded choke knob you screw in and out to adjust the idle. not only is this a bad idea in theory, but it is horrible in reality too. the only way i could get it to even remotely idle was at about double the rpm's it should be at--any lower and it just sputters and dies. after a lot of messing around with jets and adjustments, i started thinking it was some other problem. i ran a compression check, it was bad. i replaced the head gasket, re-checked it and it was in spec. went back to trying to tune the carb with the same results as before. ran a leak down test, it checked good, as the engine only had about 4 hrs on it since the last rebuild. i gave up, took the whole trike to a reputable local shop, and they also had no luck in tuning it. they told me that this is a common problem with the PJ's- they will start and run fine, but never like to idle...conclusion: spend the extra $25 and get a PWK, i have one on the way, and wish i had just bought one in the first place.