johndoe

Hello,

I've got an old OS FS-80, a pre surpass engine, from the 1982 manufactering line. It is still running but I would like to know which prop size and fuel (with or without nitro) I should use to make it run properly.

Thanx,

Ronald

Bax

My Feedback: (11)

You can use a 12 x 8 propeller. Any glow fuel with 0%-10% nitro and at least 16% oil content will work well. 5%-10% nitro would be recommended simply because it will help the idle and throttle acceleration.

johndoe

Thanx for the quick response. I'll follow your recommendations and see.

Greetings from Belgium