Dmitry wrote:Press it apart, inspect/replace bearings and rods if you can get them) and then assemble and balance. It takes couple hours to do a single cylinder Vespa crank, no way NSR can be done that quick, agree with Tucker, in 20 minutes best case scenario they replaced the outer bearings and seals .

I was told from one mechanic guy that rebulding NSR250 cranshift(completely take connection rods out) need heat treatment first to crank, then pull single crank out, is that right?
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1996 HONDA RS250
1995 MC28 NSR250 SE red/white/green
1994 MC28 NSR250 sp W/ RS250 engine