1987 Yamaha TZ250 Grand Prix racer rebuild

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Fudge

Race Dog
Joined
Jan 23, 2010
Messages
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Location
Western Cape
Bike
BMW (all models)
Assembly of 1987 Yamaha TZ 250 T factory racing bike after a total overhaul. Bearings, crankshaft, clutch and piston replaced.

Specs:
Aluminum deltabox frame with monoshock suspension.
Parallel twin, two stroke engine.
Two 35mm flat slide Mikuni rejetted carburators, rearward facing.
Reed valves with 6 petals.
Electrically driven power valves.
Exhaust leaving through the front of the cylinder bank.

[youtube]https://www.youtube.com/watch?v=drRkN6bkGnk[/youtube]
 
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