www.cb750carbs.com Rebuild Details
CB750K0~K6/F1
1969~1976
The original Honda four-carb set. Design actually derived from Honda's single cylinder 125. Guillotine choke, high wear zinc bodies, chromed brass slides, bail type float bowl retention, primitive all-steel float valves, brass slides, large idle jets, no fast idle mechanism. Simple but effective!
  • Ultrasonically cleaned inside and out
  • Laborious individual circuit cleaning and confirmation
  • Checked for correct jetting
  • Float bowl standpipe cracks repaired
  • Slide retaining rings polished
  • Throttles carefully bench synchronized
  • Chokes synchronized
  • Entire assembly leak tested

$395
Plus shipping

Hydroblasting, zinc re-plating, casting repair, quality hose, new screws (incl Allens), felt seals avail options
CB350/400F, 500/550
1971~1976
Beautifully made, heavy, thick castings, zinc based prone to corrosion, anodized aluminum slides. Elaborate, springy, Mikuni-like linkage, spring-loaded butterfly chokes, steel float valves, brass slides, large idle jets, fast idle system (350/400). Classic carbs!
  • Ultrasonically cleaned inside and out
  • Laborious individual circuit cleaning and confirmation
  • Factory Honda float valves
  • Checked for correct jetting
  • Float bowl standpipe cracks repaired
  • Tops polished
  • Throttles carefully bench synchronized
  • Chokes inspected for looseness, synchronized
  • Entire assembly leak tested

$450
Plus shipping

Hydroblasting, zinc re-plating, casting repair, quality hose, new screws (incl Allens), felt seals avail options
CB750K7~K8/F2~F3
1977~1978
CB750A
1976~1978
CB550, CB650
1977~1980
Precise linkage, tiny pressed-in idle jets, Viton float valves, accelerator pump (except 550), fast idle, butterfly choke. Very good performing carbs!
  • Ultrasonically cleaned inside and out
  • Laborious individual circuit cleaning and confirmation
  • Factory Honda float valves
  • Checked for correct jetting
  • Float bowl standpipe cracks repaired
  • Tops polished
  • Throttles carefully bench synchronized
  • Entire assembly leak tested

$350
Plus shipping

Hydroblasting, zinc re-plating, casting repair, quality hose, new screws (incl Allens), felt seals avail options
Shipping
Shipping insured FedEx to 48 states, Latin American and Asia. On the other hand, insured USPS Priority is used for Alaska, Hawaii, and Western and Eastern Europe, Scandavia, and Austrailia and New Zealand.
Options
Options include K1~K6 sync dust covers, replacement of missing or broken parts, welding, thread repair, soda blasting, bracket replating, new screws, fuel line, fuel filter, alternate jets.
Quality
I don't use junk parts. This includes Keyster, K&L, Bikemaster, Barracuda, Crusinimage and others. All parts used are the highest quality available. Float valves are always factory Honda. If I wouldn't put it in my bike, it doesn't go on yours.
Guarantee
My guarantee is simple: I'm not satisfied until you are. My reputation is the most valuable commodity I have, and I guard it zealously. Visit my guestbook and see for yourself.
Before you ship
First of all, realize that 90 percent of performance problems on points ignition bikes are related to the ignition. And it isn't enough to check timing, though that is important. If you haven't serviced the ignition system and/or you have Diachi points in there, you have no business trying to solve running issues with carburetor work. Take care of the basic stuff first. Once that is put to bed, along with cylinder compression, only then turn to the carbs. Drain your carbs well. Include in a baggie any loose pieces. SOHC carbs tend to get damaged float bowl overflow nipples in shipment, so bend some cardboard around this area to prevent damage. Please advise me of any modification to the motorcycle, type of air filter used, traditional fuel economy, and be sure to aprise me of the specific performance issues you have been experiencing and what if anything has been done so far in response. Most important of all, I need to know your air filter configuration. All pictures are of actual customers' carburetors.

Other rebuilders
There are a lot of other carburetor rebuilders out there, and some very capable ones. Naturally, each of us believes we have the most to offer. Don't choose on the basis of hype or rhetoric. Look at the customer feedback, sense the depth of background/experience (choose a rebuilder who has a powersports technician background, that is, who knows the bikes the carbs go on and didn't just one day decide to rebuild carburetors), and gauge the rebuilder's integrity. Everything else is marketing. There seems to be a little infighting, if that is the correct term, among rebuilders. I try hard to stay out of it, so please don't ask me to comment on other carburetor rebuilders.

Overseas customs issues
It's an unfortunate and frustrating situation with goods returning to Europe and Scandinavia, and their prohibitively high customs duty. I have learned that marking the box a certain way helps, and I do that whenever possible. Please don't ask me to falsify customs documents. I feel your frustration and angst over this, believe me, but my life as a Christian prevents me from taking that tack. If there is anything else I can do I am willing to do it, simply let me know.

© Mike Nixon www.cb750carbs.com and www.motorcycleproject.com