Dolmar 6400 porting

[Jake Dykstra]

So what's some good numbers for these saws? Do's and don'ts?
Picked one up recently in decent shape. Has great low end torque it seems.
Nothing racey just some good strong numbers.
Got the muff mod started. Need any timing?
Thanks.

 

[Shane¹]

More power can be made with other top ends than the 6400. I did one and was fairly impressed my numbers were. Intake is at 75 exhaust 102 transfers 130 squish is at 25 thousandths.

 

[Jake Dykstra]

More power can be made with other top ends than the 6400. I did one and was fairly impressed my numbers were. Intake is at 75 exhaust 102 transfers 130 squish is at 25 thousandths.

Great thanks.
Yeah plan on doing more cc's down the road. Figured I'd do some playing around and vids with the 64cc in to start with.