89 3 cylinder 70 hp merc piece of junk

seeker70

Recruit
Joined
Jul 17, 2006
Messages
1
I'm back again trying to fix this annying SOB. I replaced the stator because there was no juice going to the coils, the boat started right up but only ran on cylinders2and3. i was told to change the swithbox, did that and now runs on cylinders 2and 3 most of the time with all 3 kickin in occasionally. Someone please help!
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 89 3 cylinder 70 hp merc piece of junk

engne faq is down so i'm going sed you the maxrules.com and click on there trouble shooting it has test for you electric problem.
 

urbanp

Seaman Apprentice
Joined
Jul 8, 2006
Messages
30
Re: 89 3 cylinder 70 hp merc piece of junk

Have you checked your plugs and wires. I'm' not familiar with this model, but bad wires or spark plugs, will give you this type of problem. If you have a digital multimeter, do a condinuaty check on your wires. you should have no more then 10 k ohm per wire. Thats acually very high, but it should be enough to fire most plugs.
 

Trent

Captain
Joined
Nov 17, 2001
Messages
3,333
Re: 89 3 cylinder 70 hp merc piece of junk

Swap the coils around and recheck..
 
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