1987 115 I 6 update

[Wisc87-115-guy]

Well I finally put my boat in the shop the mechaniic found my stator was good but the trigger was bad are these hard to replace? Would this cause no spark on cylinders 1 3 5 6? 2 and 4 have good blue spark Its getting late I just want to FISH BASS! Thanks for any help my boats just sitting at the shop been for going on 3 weeks.

 

[Faztbullet]

Yep... and just got to pull flywheel..

 

[Wisc87-115-guy]

Thanks. I think im going to pay the hour labor they have into it and try it myself probably a lot cheaper getting tired of this I just wanna fish! There will be ice soon.

 

[roscoe]

Once you pull the flywheel, replacement is a breeze. But getting that flywheel off can be troublesome.

Just pay the shop to do the repair so it is done quickly.

Plenty of fishing time left, 8-10 weeks yet.

Will be in Mercer for a week in October, and Green Bay for 3 days in November.

 

[Wisc87-115-guy]

Yep... and just got to pull flywheel..

Hi I talked to the head tech at cdi I have a deep cycle battery it needs a ccranking battery but the tech working on my motor confirmed the trigger is bad.

 

[Wisc87-115-guy]

Hello a quick question is a 690 amp series 24 battery enough for my 1987 115 merc its all I can find thanks this might be part of my problem with my motor along with the bad trigger thanks!

 

[Fun Times]

Hello a quick question is a 690 amp series 24 battery enough for my 1987 115 merc its all I can find thanks this might be part of my problem with my motor along with the bad trigger thanks!

Hi there, I'm guessing you meant to say 690 Cold Cranking Amps (CCA)? If so, than yes 690 CCA should be good enough for your engine model as the minimum needs to be 450 CCA or 525 Marine Cranking Amps according to this marine battery chart in the following link, MARINE OUTBOARD MOTOR APPLICATION GUIDE

I'm going to move this topic over to your other topic so it's all together that way the more informed outboard tech's that are helping you are aware of your battery size, etc.. Plus you titled the two topics the same.

Good luck to you.

 

[Faztbullet]

Battery size will not effect trigger operation. If the wiring is not decayed that mean the coil failed in trigger and if that's the case the grounds on ignition plate/coils need to be checked....

 

[Wisc87-115-guy]

The mechanic told me he checked all the stator and trigger wiring it was good just the trigger was bad. Im getting a new battery today geez if I had a puller I would have saved 300.00 I read that the coil "ignition" can break or crack.

 

[Wisc87-115-guy]

Well even with the new trigger coil still only spark on cylinders 2/4 on my i6 115 this is so frustrating I want to cry!!!!! I dont know what to do the tech didnt even check the rectifier to see if that was bad I dont know what to do now.

 

[gm280]

Wisc, not knowing the back history on your inline six 115HP Merc, can you post what you've changed thus far...

 

[Wisc87-115-guy]

Thanks the stator was tested good but the trigger was found to be shot trigger was replaced with new cdi unit the engine still has spark only in cyls 2 and 4 that is it for now

 

[Chris1956]

Disconnect the yellow wires to the rectifier and insulate them. That will remove them from the list of issues. If spark returns (probably not), you have found the problem.

 

[Wisc87-115-guy]

Thanks chris im not sure this guy knows what hes doing! Hes already got 2 plus hrs in this thing! Woulnt a good mechanic figured this out by now? Im just going to pay them for what hes done and get my boat the hell out of there! I originally told them to diagnose the no spark issue and that was it!

 

[Chris1956]

Gee, I would think a good mechanic would find your issue pretty easily. You only have trigger, stator, 2 switchboxes and wiring to check. The issues are pretty well knows, and those ADI ignitions have been in use since the mid 1970s.

 

[Wisc87-115-guy]

I know chris! Hes starting to make me nervous im going to get my boat outa there and do the rest myself thanks. Ill break down and get a manual too. Joe