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2017 RMK Sucked a reed

toesmack

Member
Lifetime Membership
Feb 27, 2008
149
15
18
Reno, NV
One of our riders was burning up plugs end of last season, so just brought it by for repairs. Compression showed 120/115. Not a total indicator, but you gotta start somewhere. 2126 miles, so I pulled the motor and tore it down. Mag side cyl looked good, but side play in piston was about a mile. PTO side another story. Piston hammered and signs of shrapnel on the crown. Piston actually had a lip around the crown from getting slammed into the cylinder wall. Cylinder badly scored, surprised it made 115 psi. Found it sucked a reed. 1 reed petal totally missing. Caused a lean burndown. New pistons, recon cylinder, new reeds, plug caps and wires, Repair all the cracks in the SLP pipe, and a handful of clutch parts. Think this one will live again.
 
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