ORIGINAL: jaka
Hi!
Why your engine now runs hotter than before is due to the accumulated "Castor oil gunk" on the piston shirt, top and combustion chamber (if you run fuel with Castor oil).This black deposits is restricting the heat dissipation from the engine. That's why we pylon racing guys clean our engines from time to time to have the most power from our engines.
Cannot understand why you Americans use so much nitro (15%) when all two stroke engine just run as good on 5-10%!
Use an OS 8 or Enya 3 or 4 glow plug and 5% nitro fuel!
I live in the US and I don't understand it either, I havelocal shop order me 5% by the case because they never carrry it in stock.I can remember when 10% was the norm,now it seems to be 15%??
I do run my fourstrokes on 10-15%, but everything else is 5%..............