The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Lucas, Ignition, Charging, Electrical => Topic started by: renos-a10 on 28.02. 2011 08:49

Title: What timing on degrees?
Post by: renos-a10 on 28.02. 2011 08:49

Hi all,

If you change the piston STD with piston +20 High Comp.( 8.25 : 1 )
What timing must but on degrees with that piston?

Thanks
Renos

Title: Re: What timing on degrees?
Post by: muskrat on 28.02. 2011 11:36

G'day Renos,
                 timing would be the same, around 32 degrees or 5/16" before top dead center. I know the book says 3/8" BTDC but it might ping a bit at that.
Cheers

Title: Re: What timing on degrees?
Post by: renos-a10 on 01.03. 2011 08:24

Thanks a lot