Recent content by jamesfacts

I'm getting pretty shitty mileage, too, around 25-28mpg. So, float stock height is 22m, to move the float higher I want to set it at 20-21mm? PS—Did you once mention you had more than 100k on your CB550?

That's good to know, I can totally go back and mess around with them. Yep, I replaced the emulsion tubes, but there wasn't any sign of trouble with the ones I took out. ¯\_(ツ)_/¯

Good info, thanks for posting! Yea, that's a probably a worthwhile avenue of investigation. Hmmm... I didn't think needle position would have much influence on low-end throttle. I can give it a shot.

Timing is good, carbs are vacuum synced close but not perfect. Carbs 2, 3, and 4 are nearly equal, carb 1 bounces around more than the other three and is difficult to get precisely where the other three are. I have not checked valves, but I can't see how this is anything but a fuel issue. Runs...

I've been struggling with dead spots in the throttle on my '76 CB550F, and I believe the issue lies in the A/F adjustment of the pilot jet. I have the adjust dialed in kinda close, but I can't seem to get it just right, and I hope someone will have a tip to help get me over the finish line...

Thanks very much, that's a good place to start. I wouldn't have guessed it's a good idea to use metal polish—why is that better than just using a scotchbrite pad or something similar?

I have a CB550 that's been sitting (covered, but outside) for a couple months. Ran more or less ok in the fall. Battery has been indoors on a trickle charger, under a year old. I went to go for a quick spin this afternoon to circulate the fluids, and the bike seems to have developed an...

Yup, that was definitely my issue. i didn't realize different model carbs used the same number jets. Thanks very much for the link!

I'm in the middle of cleaning a pair of keihin carbs pulled off my '74 cl360. Two of the jets looked like they were less than perfectly clean, so I decided ordering a new pair would be wise. A buddy informed me these were #35 pilot jets. I ordered a replacement off ebay and they look to be...