ORIGINAL: OldFart1
Grettings from LAX
I've put a fresh Saito .72 in my Sig Mayhem 40 (fresh because the well worn Saito .72 was on my Buck Rogers when it encountered a ''localized gravity storm'')
I'm having an issue getting it to idle - as in it
won't below 2800-3000 RPM (and ''hunts'' at the lower end of that range). High speed needle wound up 1-3/4 turns out - pulls hard on a 12x6 APC. Playing with the low speed screw I can get great transition - but no low idle.
One thing that the guy who rebuilt the motor brought to my attention was my fuel. As all my other glow motors are YS - I run 30% Coolpower. The Saito ran great on this before - but as he pointed out the motor is a lot tighter now.
Also - what's the critical dimension from the spray bar centerline to the tank?
Thanks!
Sounds like it may be a low adjustment issue. Try backing the low needle out to flush with the plastic arm. Adjust the high end at this rich setting. Then start adjusting the low end for a good idle speed. The top end will need tweaked as well. I keep the supply line as short and as in line with the inlet as possible. I use 15% nitro in all my Saitos.