I set about to diagnose my difficulty in cold starting my 1977 FJ45 and as I suspected, the accelerator pump is no good. I rebuilt the carb quite a while back with a cheap GP Sorensen parts kit and while everything else is fine, the accelerator pump seems like something where quality could vary dramatically. The boot also disintegrated pretty quickly which sounds like is not atypical. This is a non-USA spec truck and my Aisan carb has an H3660 tag on it which from some other threads seems to be Aisan PN 21100-61010. From Mike's rebuild kits it looks like it is identical to other 2f carbs in all the ways that matter for a rebuild kit.
I've done some searching and it doesn't look like anyone sells just the pumps (Mike's has some, but not for 2Fs) , so I am assuming I'll need to buy a full kit, but though I'd check here for recommendations on what has the highest quality pump and boot. I appreciate any advice!
I've done some searching and it doesn't look like anyone sells just the pumps (Mike's has some, but not for 2Fs) , so I am assuming I'll need to buy a full kit, but though I'd check here for recommendations on what has the highest quality pump and boot. I appreciate any advice!