How much play should the piston head have on a 1973 Yamaha rt3 360?
So it has almost no up and down play or side to side from the rod itself but the
piston head slides
side to side about a quarter of an inch which seems like a look of play.
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Thanks for recognizing that we are strictly a vintage Yamaha 2 stroke site.
However, I'll go ahead and comment
That is a highly collectable 1971 Kawasaki street bike you found, and was the absolute fastest production motorcycle down the quarter mile strip, back when they came out !
Although it needs a lot of work, . . . especially if someone plans to restore it correctly, it's certainly worth a $1000 in parts alone. A fully restored one recently sold for $26,000.
Personally, I wouldn't hesitate to buy that, and get it cleaned up, put back together and perhaps running.
You need to find a vintage Kawasaki web site that specializes in the "H1 Mach III" models. One of those guys would probably give you several thousand for it ... just the way it sits.
If you do purchase it, we won't be helping you get it running here . . . You will have to find the appropriate Kawasaki web site.
Good Luck, Dave