Jump to content

New 32mm Mikuni TM Carburetors - Need a Starting Point On Jetting


Thack82

Recommended Posts

I need some help, I just bought a Brand New Set of 32mm Mikuni T.M. Series Smoothbore Flat-Slide Carburetors for my Banshee that has a F.A.S.T. Play Ported SS/68mm Serval with Rocket R2 Pipes that runs on 93 Octane Pump Gas.

 

I'm also running a Trinity Cool Head w/ 21cc Domes, EHS/Outerwears Lid Insert (Equivalent to NO Air Box Lid), K&N Air Filter with Outerwears Cover, Pro-Design Billet Intakes, Chariot Billet Reed Cages w/ Reed Gage Spacers/Boyesen Power Reeds, and a bunch of other bolt on Performance mods.

 

I'm at 740'-780' above Sea Level.... Do you guys have any suggestions on a Jetting Starting Point?

 

With my old Keihin PWK 28mm "D" Slides my Winter Jetting was #52 Pilots and 165 Mains.

 

I know the Jet Number's and everything else is completely different between the Keihin PWK's 28's "D" Slides and the 32mm Mikuni T.M. Flat-Slides but I thought it might help you if you knew what I had been running.

 

Any input or suggestions would be greatly appreciated.

 

 

____________________________________________________________________________________________________________________

 

I've already bought 30mm-32mm Pro-Design Rubber Carburetor Boot's for my Pro-Design Billet Intakes and UPP Racing's 32mm-33mm Air Box/Intake Boots, but I cant find a set of OEM Style Clamps for the 32mm Mikuni TM Carburetors. I'm sure the Carburetor Clamps for the 34mm Keihin PJ Carburetors will work with my Mikuni's too if I could find them, if any body could tell me where to buy a set (all four 2-Fronts & 2-Rears) Carb Clamps for my 32mm Carbs it would help me out tremendously. Ive been searching for the past two days.

 

Thank You,

Jim Thacker

Link to comment
Share on other sites

I just put some 32 tm carbs on a dune ported stock stroke stock cylinder bike with 21 cc domes. I wound up with 290 mains and 30 pilots, im on the coast at sea level and could get by with a 300 main but it runs best with the 290. I had 40 pilots to start and they did fine but i had my screws  2 1/2 turns out and wanted to run them at 1 1/2 so i dropped to 30s.

Link to comment
Share on other sites

  • 2 weeks later...

I would agree with maskman. Bigger carbs=smaller jets. Your getting more velocity. I'm running 34mm TM Flats with 30 pilot and 260 main on 4mill 64.50 bore at 800ft. ported rad valve with boyensen reeds. I started with 330 mains and shee would not run worth a crap. Hope that helps

Link to comment
Share on other sites

you get more velocity with smaller carbs.

 

the tm's carbs just use a smaller main jet, they must get a stronger signal through carb design.  pwk's dont go smaller on the main when the carb is bigger.

 

a bigger motor will suck more fuel too.

 

sorry i cant help with 32mm jetting ive only ran the 34tm's.   but they do run a way lean main.

my serval with shearers n 34's TM's ran 270main 50 pilot,  then ported serval, 290-300 main.   stock carbs on the non ported serval setup was 340mains.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...