Thats awesome to hear im excited to see how they perform. I do very little millage in a year so hopefully they last a few.
You had me second guessing myself lol!! I double checked ss per yamaha the number is slightly different. However every aftermarket coil i can find reference replacement for both numbers.
First symptom I had was end of last year a loss of power at top end, basically I would loose a cylinder at about 6500rpm and the machine wouldnt go over 50KM. It was a little tricky to know for sure then because the coil would work normally under idle. Did a fresh tune up and carb clean this season and same issue however i was also having irattic idle. If you set the idle for about 2500rpm it would fire on all 4 coils. When I tires to get it down to the 1700RPM somewhere in between it would loose a coil and fall k its face at 500RPM and die. I was lucky enough to have a neighbor with the same machine swapped out the coils and it ran like a dream. Sorry its not a little more exact lol... the stock coils are sooo expensive I tried everything else twice before committing. I then found R1 coils on Amazon for a fraction of the price so bought 4 and so far so good!
