500cc Himalayan


Total noob
Do keep posting regular updates on this project @Dool2 - and if/when you dyno the machine ,the charts will be welcome. Also did you machine the new 500CC PISTON to make it weigh same as the OE 411cc piston so as not to change the vibration dynamics?


Well travelled
I have 2 pistons to choose from one is 270 and the the other 285grams, I found before with the 477 Forged piston which is heavier than OEM 411 that I had vibrations at around 5000RPM which are not noticeable with the lighter Cast pistons I'm using now.
Dyno will be next year at this rate
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