CB750 DOHC carb swap?: Sprockets forum: Grassroots Motorsports Magazine

Subscribe get a full year for only $23.95 Sample Free Test Drive—no strings attached

Feb. 25, 2010 10:17 a.m. BuddyJ None

I picked up a '80 Honda CB750K this week with the ambitious goal of turning it into something like the Wrenchmonkees bike.

Typical internet wisdom says the stock carbs hate pod filters and that keeping the airbox is the only way to make the bike run well. I'm not buying that.

Any thoughts on ditching the old stock carbs for modern-ish ones off a crotch rocket? Good idea? Bad? Best idea ever?!
Feb. 25, 2010 3:13 p.m. ClemSparks SuperDork

I wish I could help you but I can't. I'm posting to thank you (as well as curse you) for showing me the awesomeness that is that wrenchmonkees site. www.wrenchmonkees.com for those who want to experience some serious bike inspiration...

Clem [goes off to find a tail light for my bike like the ones they use on theirs]
Feb. 25, 2010 4:53 p.m. BuddyJ New Reader

Their stuff is pretty sweet, and they'll gladly sell you that tail light.
Feb. 26, 2010 4:43 p.m. 4g63t Reader

The source of all that is DOHC 750. www.cb1100f.net
Feb. 26, 2010 5:08 p.m. CarKid1989 HalfDork

ohhhh wow. that bike is sweet.

inspiration for my new project
Feb. 26, 2010 7:48 p.m. Woody SuperDork

I put individual K+N's on my CB550F Super Sport. They looked great and ran like crap, unless I closed the choke a bit.

Those filters demand new jets and a pipe.
Jan. 21, 2011 4:09 p.m. pickandpray

yes it can be done. I'm in the process of installing 1988 gsxr750 carbs.

http://older-carsandbikes.blogspot.com/2010/10/gsx-r750-caruretor-swap-for-cb750c....
Jan. 21, 2011 6:37 p.m. PHeller Dork

first rule of Wrenchmonkees is not to tell anyone about Wrenchmonkees...because then everyone will want a "Brat" bike.
Jan. 21, 2011 6:42 p.m. stuart in mn SuperDork

Someone must have figured out how to Megasquirt that bike by now, with a set of throttle bodies off some late model four cylinder engine.
Jan. 21, 2011 7:21 p.m. 4g63t HalfDork

PGSmick on www.cb1100f.net did it
Jan. 21, 2011 8:21 p.m. 44Dwarf Dork

Look for a set of Mikuni Rs Flatslides or Keihin FCR Flat Slides and jet it for what you need. Used set of carbs should run you $350 - $500
Jan. 22, 2011 2:22 a.m. Woody SuperDork

44Dwarf wrote:

Look for a set of Mikuni Rs Flatslides or Keihin FCR Flat Slides and jet it for what you need. Used set of carbs should run you $350 - $500

I might have a set of those.