2007 Johnson 2 HP 4-Stroke Service Manual, Page 59Get this manual
IGNITION AND ELECTRICAL COMPONENT SERVICING
COMPONENT SERVICING
Igniter Air Gap
Use thickness gauge to measure the air gap between the flywheel and the igniter unit: Air gap: 0.02 in(0.5 mm)
Use strap-type flywheel holder, PN 507976, or equivalent to loosen the flywheel nut
IMPORTANT: Do not remove the flywheel nutIt prevents damage to the crankshaft when using flywheel remover tools1Flywheel holder 005957