hi speed,
you knocked the nail on the head,it was the fuel causing the problem, now its running ok on the synthetic fuel 15% nitro.
now i was using 5% before and it was running ok with that but what i want to do is mix my 15% fuel to make it 7.5% as i
have 4 gallons of it and 20 litres of methanol,so what would be the best castor oil to mix with it-regards kkk