87 Merc 115 basic troubleshooting

bigdavech

Recruit
Joined
Apr 28, 2002
Messages
5
What's the best way to check for spark? Can I just pull a plug and ground side against engine block and look for spark while cranking? This motor uses champion L76V gapless plugs. Can you still see the spark jump from the center electrode to the rim? Sorry for the dumb question. Thanks.
 

Summer Fun

Banned
Joined
Mar 2, 2002
Messages
2,251
Re: 87 Merc 115 basic troubleshooting

hi dave yes u can or crank it over with plug in and hold spark wire about 1" away from plug should see blue arch way577
 
Top