Dismantled my 2005 550 recently. 129hrs
After thrashing it all year, I was suprised to find little wear
Ring gap was within normal limit ( But replace anyway )
Timing chain stretched like an old rubber band
Piston and sleeve normal no major scratches
Clutch friction plates 2 distorted ( To many 3rd gear starts )
Inlet valves worn badly on seat face ( replace )
Crank bearings are OK but replace.
Yet to check big and little end bearings ?
Very pleased so far
But i did notice on the last few races the the Berg seemed FLAT on 3/4 to full throttle
What would cause this.
Maybe valve adjustment, big end bearing ?
After thrashing it all year, I was suprised to find little wear
Ring gap was within normal limit ( But replace anyway )
Timing chain stretched like an old rubber band
Piston and sleeve normal no major scratches
Clutch friction plates 2 distorted ( To many 3rd gear starts )
Inlet valves worn badly on seat face ( replace )
Crank bearings are OK but replace.
Yet to check big and little end bearings ?
Very pleased so far
But i did notice on the last few races the the Berg seemed FLAT on 3/4 to full throttle
What would cause this.
Maybe valve adjustment, big end bearing ?
if one day i will rebuild the engine i won't be able to understand which parts need to be replaced and which are good
