Only info I could find on it....
Old post by Solomoriah
According to the Thumpertalk.com parts store OEM listing, these are the part numbers for the TW200 levers:
Brake Lever 55Y-83922-00-00 LEVER R
Clutch Lever 4GY-83912-00-00 LEVER L
Boats.net has this handy cross-reference listing for the brake lever:
and this to say about the clutch lever:
I've already found a Moose Racing shorty lever for the clutch side, but for some strange reason they only sell shorties for the clutch, not the brake; dunno about the current units, but the classic DeHandlers were designed for three-finger braking and two-finger clutching, and that's what I'd like to find (if possible).
Apparently, the brake lever was a standard part used throughout the off-road Yamaha lineup in the '80s, but now is only found on the TW, XT, and TTR lines... which, evidently, aren't interesting to Sunline. They did make a brake lever for the YZ series that would be compatible, but likely they last made them circa 1990 or so. To get one, I'll have to find a NOS, probably on eBay.
The clutch is much easier; as mentioned by xracer, the current YZ85 still uses this lever, so aftermarket vendors (Sunline, Moose, etc.) still make and/or sell them."
Then Fourcycle had this to add
Longer lever = more mechanical advantage. I need all the brake I can get on the TW and would not opt for a shorter lever.