Originally Posted by
mattwoodcraft
after your 2/3 gallons replace your crank bearing i dont think they are very good quality i have seen a few rear bearing let go
+1 I waited till I had about 1.5 gallons and ended up changing bearings at the track during saturday morning practice, got 2 tko ceramics and its all good now! Take it easy on break-in these motors take a little time to brea-in, but it will be worth it when its ready its ready to rn with anything also don't make any major adjustments to the hsn use mainly the lsn. I got 4 tuned grps and love all of themn they are not explosive just smooth usable power
Hope this helps
Jason