Large Model Association Forum

Anyone know what the timing should be on the NGH 38cc FS ? Mine is set at 40 deg BTDC and is almost impossible to start.
I normally set ignition timing to 7- 12 deg BTDC on car or bike engines, 40deg seems a bit excessive.

Have a read on here it may be of use
http://www.rcuniverse.com/forum/gas-eng ... oke-3.html