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Jetting for TT500
Posted January 16, 2005 - 05:05 PM
Posted January 23, 2005 - 05:34 AM
Try a posting on thumperpage.com. Lots of vintage TT/XT/SRs there. Got lots of info a few years back when I built and HL500 Replica. I'd use a 36 or 38. Mine ran best with a VM38. Jetting for a 34 should be basically the same. Pilot jet, needle jet, slide cutaway, etc. should be about the same. Main jet will be a little smaller. My notes went with the HL so I can't give you specs.
If that's an old two smoke carb, be prepared to throw away/replace just about every metering circuit inside$$$. They use different needles, needle jets, slide cutaways,air jet, etc. Pilot, main jet are the same style just different numbers. It's usually cheaper, unless you've got a big pile of VM mikuni parts, to find a VM36/38 that came off a TT on ebay or buy a prejetted VM. Try thumperstuff.com. or vft.org (vintage flat track)
Don't know about the cable for a gasser. Good Luck!!!
Posted February 14, 2005 - 02:01 AM
If you are looking for a simple setup that provides good performance then use a 36mm roundslide. The 34 is rather small and I don't think anyone has gone through the hassle of jetting such a small carb. For a 36 or 38 or even a 40 it would be easy to come up with some jetting specs. It would help to know the build of the engine... Airbox? Exhaust? Etc...
Posted February 21, 2005 - 09:31 AM