Magneto points timing

[dstew]

Hi..Can someone tell me the points gap on a 0c 3 crawler? And is there supposed to be a spark visible through the inspection glass of the magneto when the motor is running? thanks in advance.

[John Schwiebert]

Point gap if from 0.015 to 0.017

[oliverchris]

Spark is not visible through magneto timing window.
That window is so you can line up the mag rotor with correct part of engine stroke. With rotor visible in that window ( at #1 plug wire magneto cap terminal) the #1 cylinder piston should on its upstroke - usually felt by sticking your finger in the spark plug hole - you will feel the pressure build-up as the piston comes up.

[dstew]

Hi
Thanks for the info will try the settings. I understand the timing of the motor re tdc and rotor arm position. motor goes quite well. but should there be visible sparking inside the mag. Its a new mag.cheers

stew