250-500cc Polished rod!

The rod of my WR300 2010 also looked the same, It's a finish that comes from stock. I supposed it was to enhance flow, didn't thought about ^ that theory.

Regards.

Shawry, let's look at this from another angle.
Q. What would polish a conrod while in service?
A. Nothing that wouldn't destroy the rest of the engine.

I'd bet that's the factory finish. Don't worry about anymore it mate.

Yeah she's all good back together & running strong. As a side note I had new reed petals ready to go but after 160 hours the current ones still looked pretty good so I left them be. Very minor wear on the end of a couple of them but no cracks. See if they can make another 100 hours! Thought they might be shot as normally have a bit of 2T oil in bottom of airbox

These are good stuff. Thats anodizing wearing off. That from a picture looks real good. If bearing has any discolor might be concerned.

Ahh it was just the wrist pin bearing had a bit of discolouration on one side(zoom in ya can see it on photo) but in its defence it had done 157 hours!

Speaking of little end bearings I was running a 19.7mm(I think) wide bearing which are the same as KTM/Beta but it should be 21.8mm(I think-manual/parts fiche states). Not sure why I had the skinnier bearing in there I guess it was all I had at the time & what I was sent. Is there any downside to running the skinnier bearing yas reckon? More lateral movement/wear?

Watch out for this though....

http://www.cafehusky.com/threads/cant-ignore-this-can-i.82487/

Ahh legend Crocus that was the thread I was thinking of! Fortunately mine was all good inside little end. 32:1 with predominantly our 98 octane & try start every coupla weeks at least(generally gets ridden at least every seond weekend). Cheers mate