Foro Honda Twins

My 1974 Cb450 started backfiring through the right carb at the end of a rainy ride. It seems to backfire most when I get on the throttle at low rpm, but I also think that high rpms are being affected. I thought that it was the points initially but when I checked it today the timing was spot on. I dont think the mechanical advance would affect it since it would affect both left and right cylinders. After checking timing I checked all the valve clearances since I thought it could be a tight... Cb450 backfiring through carburetor

What are the two small holes and larger hole for in the barrell next to the butterfly? I cannot get fluid to flow through them from the hole where the idle mixture screw flows through. Does that mean no fuel at idle for that carb?

Hi, I recently bought my first bike which is an 85 Honda cb450sc nighthawk that had been sitting for 15 years. It took a little time but I got it cranking and then cleaned the carbs, and it fired up. I also had to replace the petcock because the old one leaked out the front and was non-rebuildable. When I hit the starter it fires up great and sounds awesome at idle, when I give it any throttle the rpm’s immediately die and it pops through the intakes. I thought I might have missed a jet or... Running lean when given any throttle.

Problem description – Honda CB125T 1980 stalling after a few minutes I have a Honda CB125T from 1980 that runs well when cold and also rides perfectly under load. The engine idles smoothly and responds normally. However, after about 5 to 10 minutes of running, a recurring issue appears: When I release the throttle and come to a stop, the engine suddenly dies. To restart it, I usually need to kick it 3 times, and it only starts again with a bit of... Honda CB125T 1980 – Engine stalls after 5 minutes riding/idling

I need a replacement rim for the rear on my 1970 CB350. Which one is more durable with less maintenance? A new chrome steel rim or an aluminum rim? Which is the better-quality rim? Lots of players chasing my money I just want a good rim that will last another 50 years.

bonjour je vis en France dans le Sud,près de la mer. j'ai 75 ans. a 20 ans j'ai eu une honda GB72 que j'ai conservé une dizaine d'années avant de m en séparer pour aller travailler dans le Nord de la France. j'ai toujours regretté cette moto. en 2012, à la retraite, j'ai acheté une cb72 épave mais complète et sans trace de rouille. je l ai entièrement refaite et j ai le grand plaisir de rouler avec elle de temps en temps. j ai egalement une CB750 four de 1972 en parfait état.

Has anyone used Maier universal fairing mounts to mount a Shoei fm2 handlebar fairing, or any other fairing.

Has anyone used Maier universal fairing mounts to mount a Shoei fm2 handlebar fairing, or any other fairing. I’ve had it for years and it’s time to get it on my cm450. Thanks

Bought a 1974 CB360 with <4000 miles. Had idle issues. Seemed to rev otherwise decently. Air filters were basically toast. Replaced with Common Motor air pods. Pulled carbs. Bowls were a mess. Cleaned. Put #68 and #112 jets in. Diaphragms seemed fine. Replaced intake manifolds just in case. New spark plugs. Put Common Motor voltage regulator in. Put aftermarket mufflers on. Original headers. Don't notice leaks. Sync carbs and idles great now. Seems to rev fine... 74 CB360 Bogging Issues (air pods + mufflers)

Good afternoon. this is my first post on the forum. No doubt I will be on here more as I have recently punched a very nice CB125T, 1985. Its in need of a bit of work and I bought it for me and my son to or on together. The first question I have is regarding the steering column. I took it apart to inspect it and the bearings need changing. I noticed that they are loose bearings right now but was wondering if there is an upgrade to sealed bearings of some sort to make the whole job a... Steering column bearings

I have a few old Honda twins, including an '83 CX650T, a '76 CB400F Superport, and a '65 305 Scrambler.

I needed to replace my headlight, it was still an original style sealed unit. After a medium effort of online and brick and mortar store searches, it was apparent that sealed lamps are becoming more rare and the ones available off the shelf don't have the same integrated mounts- so installation in the original housing wouldn't work. So I turned my burned out sealed light into a housing for a modern replacement. The back of the sealed lamps are metal. I... Headlight Conversion