Re: XR55 Manual

[bh]

C; -rod failure is common with all race motors, mainly due to over reving,
especially getting up on plane, and lubrication failure.
Some also fail due to fatigue, and racers polished the rods to alleviate this.
Sending them out for ‘crack-testing’ would be a good move,
but if they fail the test, then you will need new rods any way ,
Balancing the piston/rod assembly vs each other can help.
The RACERS MANUAL by Carpenter had lots of info, if u have not seen it.
So if the clearences are right, ie; not too tight, then I would use
lots of synthetic oil, 12:1 ?, and keep the revs down .
If you don’t run it, it’s a wall hanger 🙁
-if u do and it grenades it is back on the wall 😥
-but at least you can say it ran 😀
Hoping to see it run soon.