3 1/2 Flat Tracker

Camel, Sahara, Kanguro, Coguaro
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44dwarf
Posts: 11
Joined: 20 Jul 2019 12:20
Location: Winchendon Mass USA

3 1/2 Flat Tracker

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Hello All.

Tony Leary here, in the USA.
I've recently begone racing a late friends 350 that was 1st done up as a "Street Tracker" in the early 80's and turned in to a race bike when another friends bike broke they striped off the lights and raced it.
It does seem to run well however at one point i was geared wrong and over rev'ed a race later (after a gear change) snapped the exhaust push rod, bent the intake rocker and push rod. I've since replaced those and it is running better then it ever has.
Looking thought the part bin i found several bent push rods so seems it may have been an issue in the past as well. Sadly I can't ask the build as he passed away 5+ years ago.
I can not find some valve spec info anywhere, someone must know it.
1) Valve spring installed height.
2) Valve spring seat pressure.
3) Max valve lift.
4) Desired coil clearance (space between coils at max lift before coil bind)

attached is a picture from Pete's memorial race 8/10/19

Thank you for your time and help
Tony
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44dwarf
Posts: 11
Joined: 20 Jul 2019 12:20
Location: Winchendon Mass USA

Re: 3 1/2 Flat Tracker

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