quote:

ORIGINAL: togatoga

Atul, I suggest you use 2~3% good quality castor for your engine as you are mixing your own fuel.The methanol may not be pure and may contain or attract moisture during mixing.The castor will save you some grief. Castor in this low percentage is fine and does prevent corrosion especially in humid conditions where you reside.
I used a 14x8 prop and was getting about 10k on 5% . Engine idles extremely well and provides unlimited verticals in my plane.I had a trike plane that had limited prop clearance, so I popped in a 110 that was lying around doing nothing and used low nitro.I wouldn't consider a YS with the limited fuel choice that you have, rather I'd go gas IMHO. Hope to get to Bangeluru one day and walk along Brigade street. Happy flying!

quote:

ORIGINAL: MOTORMAN37

Atul,
First: Castor in a YS is bad. It is a known fact with YS's that the exhaust valve will coat very quickly with burnt on carbon and cause problems. A YS is a totally different animal than a Car motor, Saito, or any other four stroke outthere. Second: Troy said his YS spins a 15-10 a little over 9,not 10,000 rpm. Third, down under does not run YS's. If you do not want to listen to good advice from people who know and run YS's thats fine with me too. You will lickely have a very expensive lesson with the YS learing curve. Mine peaks at 10,000+ but is richened down to 9,800+,depending on the outside temps. The 1.10S will never bee happy on 10%, and you will not see 9,400 on 10% either. I am about done talking about this subject too. You need to run the excepted fuel.
You have alot of what if questions, but do not seam to want to follow the recommended advice from YS users.