So here's a summary of what was found in this Riff Raff 046.
Cylinder runout out of spec by 10-side to side. Squish off by 5 side to side (.025-.030). Timing on the money. Exhaust port one of the nicest I've ever seen. Intake port fine. Transfers untouched-but I wouldn't have either. They were perfect.
Muff matched to jug and heat shield perfectly. No real muff mod other than opening the front DP cover a bit more and removing the screen inside the PTO deflector.
Case filthy, bearings dirty with gritty feeling. Crack on outside of top oil case bolt boss. This caused the bolt to skip in the threads when tightened. The crack would just expand. It's been red loctited in and there is no leak. Case had not been split in years, but was split once before.
Surface rust on crank. Seemed ok though.
Hyway piston that was scored. Pin bearing appeared OEM, but tossed because of cylinder being out of spec. Filthy with debris BTW.
Clutch center was busted. Greg may still need clutch springs, for real. It will idle at 2800 and barely move the chain. I'm not sure on the idle spec for the saw.
The lower clutch surround/plastic oil pump shield had farked up threads. Wouldn't allow bolt to bottom out. Had to retap.
Oil pump drive worn beyond belief. Replaced.
The wiring to the coil was intact, but insulation worn through. Had to shrink vac.
The fuel line in the old tank was not bottomed out all the way, it was cockeyed in the tank. The grommet wasn't locked in.
The flywheel key was filed to .040-.045 off. It kept biting the OP when he tried to start. Now we know why.
Lower dawg bolt hole in the case. Bad prior Helicoil repair. Couldn't get bolt to keep tread. Recoiled it. Good to go now.
So pretty much, just sloppy workmanship. The saw was a PITA to assemble because at nearly every single turn, something was damaged/worn/stripped/filthy/unusable/missized.
And as already known to all here, Jason had amazing potential and just let it slip away.
