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  1. S

    Still having problems

    I have a 2000 40hp 4 stroke Yamaha. I was not getting fire on the #2 cyl. I just replaced the ECM unit last Fri. and took it out to run. It ran rough at first then after about 10 min. of running it felt like you hit a NOS button and took off better than it ever run. I'm guessing it was some bad...
  2. S

    ECM?

    I have a 2000 40hp 4 stroke Yamaha that has a Motorola ECM unit. Yamaha part #67C-85540-01-00 My unit has the following numbers on it:<br />M6008JX<br />856178 <br />FSTR9802 <br />4S ECM-3 00MY<br />859544A1 <br />PI91181328.<br /> <br />I have found a Mercury Quicksilver ECM unit with...
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