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Old 09-07-2012, 05:54 AM   #6
hardwaregrrl OP
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Joined: Jan 2006
Location: Atlanta
Oddometer: 7,241
Thanks! This at least gets me started.....the carbs are brand new. I'm sanding a floor for Nathan Mende of Boxerworks-service and he ordered these for me from parts unlimited in a bit of trade. I was assuming I'd have to make my own cables by grinding the barrel down on the existing cable. I know they're jetted very rich. out of the box..250 main 45 pilot. Needle jet 389 Q-2 jet needle 5FP17. Thanks for the help, I'm racing it again next weekend and am dumb enough to want these carbs on the bike for the rally.

Quote:
Originally Posted by Kai Ju View Post
If they were VM's we could get you in the ballpark. No idea on the TM's
What did they come off of ?
Were they meant for an airhead ?
What jetting do they have right now ?

Come to think of it, I had a TM 38 on my Rotax powered Ninja 250 and it uses essentially the same brass that the VM series does.

So here goes:
These are the specs for VM38s on a '77 R100/7


Description Spec
Main Jet 210
Pilot Jet 25
Needle Jet 166 P-8
Jet Needle 6DH3
Slide Cut Away 2 This will likely be different since the TM is a flatslide
Main Air Jet 0.5
Needle Valve Ass'y 3.3

The other option is to call SUDCO and see if they have specs for what you got.
I made my own cables from the stock cables, take your time, measure three times before you cut anything.
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