Merc coil question

[spk]

I have a 1993 260, I have replaced the stator on a regular bases, I have also replaced the switch boxs. My question is do the coils become weak over time or how do you check to see if they need to be replaced.

[Jay Smith]

If you have a '93 with the stock OEM coils you a very lucky camper indeed ! Coils slowly become weak and don't deliver the voltage after only several years of recreational use and as quickly as a half a season of all out Drag Racing competition ! We have had new OEM coils in the begining of the season run 4 to 5 races and have noticed RPM loss( 300 - 500 ) replaced coils with new OEM ones and the RPMs come right back on the same day under exact test conditions ! I would replace those puppys ASAP with the OEM parts ...........

(339-832757A4) This is the Merc part you need..........

Hope this helps ,
Good luck ,

[DirtBikeRiverGuy]

spk,

Why are you changing the Stator on a regular basis? Do they fail on you? What are you doing to test it? Thanks, just want to know if I need to also.

Thanks.

[spk]

The stator is replaced for the same reson I will start replacing the coils. They become weak over time, and do not deliver the required voltage, I replace mine every two years.

Jay thanks for the information, I will be replacing them this weekend.

[CNT]

I'm running an 88 2.4 and still have the original coils. I have noticed an RPM loss from last season to this season. Also I'm starting to get a skip or loss of power when trying to take off. It does'nt do it all the time but it seems to be getting worse. Usually at a certain RPM when I'm almost on plan or when the motor seems to be under the most strain trying to get out of the whole it acts like someone pulled a plug wire loose but then it kicks back in and gets up. I don't notice any loss when I'm up and running just when trying to get out of the hole. Could this be a coil going bad?, Fuel pump going bad?, or what else could it be.

[DonChicho]

WHAT'S ABOUT RAPAIR MERC COILS ????

BETTER THAN OEM ??????


THANKS,
DON

[Jay Smith]

I'm an OEM man but thats just my preference.........