carburetor

Hello! I am currently rebuilding my 1976 Honda XL350 Keihin Carburetor and need help sourcing replacement seals. Specifically I can’t source this pictured seal anywhere… It looks like a one piece brass and rubber bushing around the throttle pin. Seals the pin that rotates to open and close the...

My $500 CM400 only idles on the left cylinder. I have adjusted valves, cleaned the carburetor 4 times, and changed the coil. It has good spark and fires when I rev it up, it just doesn’t fire at idle. I’ve even swapped all the jets and parts from the 2 carbs. The right side carb did look...

Hey guys, Ive been having some issues with my '70 cb350. I recently purchased the bike as a barn find that hadn't been on the road in 30ish years. I rebuilt the carbs and replaced all the brass, replaced the carb boots, replaced the plugs, replaced and set the points, replaced the condenser...

Hello. I'm looking for any parts that came off a 1981 CM200T. I think at this point I'd even pay for an all in tact used carb. Hard to find I'm sure. Thanks!

Please excuse my garage and lack of proper tools/setup. So...I'm new to all of this. I am not a mechanic, nor do i know anything about motorcycles other than I've always wanted one.That being said, this is what I've done so far. I know I haven't done anything in the correct order and probably...

Having trouble sourcing a Keihin VB22 30mm venturi to Canada. I was hoping I could test my luck here. Thank you :)

Hello! A couple questions… Any idea what could cause the “scuff marks” on my carb piston and/or should I be concerned? Also, does the fuel pump diaphragm‘s rubber boot go under the carb body or does it fit within the opening, flush with the top surface? Please and thank you! (Photos below)

I extracted a pilot jet out of a 1982 cm450 using screw extractor. It destroyed the threads I guess because the new pilot jets do not go deep into the carb hole anymore. Someone recommended retapping it because I probably destroyed the threads. The M6x0.75mm tap I bought does not fit at all in...

I am very new to the forum. I need a lot of help. I am in the process of rebuilding the carbs and I made a huge mistake. I broke the slot on top of a part and had to beat a small flathead into the orifice to get it out. I believe it is the needle jet holder but I could be and probably am wrong...

I would like to introduce you all to my horrifying masterpiece of my 1982 Honda CM250C carbonator modification. My CM250C had almost no power and would bog down leading to almost no power in 3rd, 4th, and 5th. Out of frustration I said frack it and removed the carb, intake manifold, air box...

Hello good people. I'm looking for expert advice to solve issues with my carburators on CL175 (1968). Couple of problems, 1. Idling not always the same, it could die easily or some times engine is hunting. It gets better after run, but in my view bike only really goes in forth and fifth gears...

I have been working on my 1982 CM250C trying to make it,,, well run right. This is my first bike and this process has been enlightening and fulfilling, but also confusing and frustrating so much that I have named the bike Enigma. Enigma because every time I work on the bike expecting the outcome...

Complete carburetor kit for your CM400/CB400 twin. Honda CM400 CB400 Mikuni VM30 Carburetor Kit New set of genuine Mikuni carburetors set up to your bike. We only use MIKUNI parts in our carburetors. Hands down the easiest and best way to get your vintage motorcycle up and running. Each kit...

Idle rev still way too high, so I decided to look at the carbs again. Popped off the right carb today and low and behold, one of the throttle plate screws was missing. Not sure if this is the root cause, but this is surely a big problem regardless Had a mechanic come work on the bike about a...

This is an open question to the inmates… Ive run across new carburetion tech, the smartcarb. here: https://smartcarbfuelsystems.com/shop/ They don’t have 32mm Venturi size and it appears they’re primarily 2-stroke. Has anyone used one? They’re pretty spendy, kind of like the Lectrons but...

Greetings, I recently acquired a 1973 SL350 that is exhibiting an issue for which I could use some wisdom and insight, before I dive into troubleshooting. The bike starts and idles perfectly. Ridden at lower RPM (up to 3.5k or so) it runs fine. However, as you push beyond that it will begin to...

Hey all, bike n00b here. I have a 72 CB175 that I'm finally getting around to fixing. A brief history, the bike has ~3k miles. I bought it from the PO in 2019, who said it was in storage since the 80's. It started and ran when I bought it, and my dad rode it October 2020. Now I can't get it to...

Howdy, new poster here. Bought the bike about a month ago (my first bike) and up until today it's been running like a dream. Today I ran into a weird problem. Once I hit about 20mph, the bike has trouble accelerating any faster. I can sort of coax it if I take it really slow, otherwise the...