spark plug gap 80 HP Rotax 912

[mark donahue]

Checking to see what folks are gapping their NGK DCPR7E plugs on the 80 hp 912 ul.
Thanks a lot,
Mark Donahue

[rv9ralph]

Here are the specs I have:

Spark Plug NGK DCPR7E 12mm
Gap:
New: 0.6-0.7 mm (0.023-0.027)
Wear Limit: 0.9 mm (0.035)
Torque Plugs to: 20 Nm (177 in.lb.)

Ralph

[mark donahue]

Thanks Ralph,
For some reason I was thinking that folks reduced that gap a bit for easier starting/running.
But I cant trust my memory anymore.
Take care,
Mark

[Av8r3400]

I have a Zipper big bore on my 912UL. So it is a little different than stock. I am using DCPR8E plugs.

On Hal Stockman's advise, I gap at .022-.024". So, on the tight end or a little less than OEM spec. It has aided in cold starts and general idle quality.

I replace them annually regardless of hours so wear is not a factor.

[mark donahue]

Thanks, that was what I vaguely remembered.
Appreciate the info.
Mark