Re: Output Cyl 2 from CDI failing Yamaha 115
At the risk of sounding like an expert (I'm not) here's some logical troubleshooting tips for the $#@!!&^!! Suzuki. (I just spent two grueling weeks tracking down a similar problem on my '95 DT115. <br />- The CDI will usually either work-or not...there is typically not any mid ground. <br /><br />- If you "hit it" and it works, I'd suspect a loose ground (or other connection)somewhere (the center screw where the CDI Black lead connects... I added another ground wire and attached it under another bolt-head. That wasn't the problem on mine, but it may fix yours. <br /><br />- If you swapped the Spark Plug coils and the problem is fixed, I'd keep my eyes out for a used coil 'cause that one is probably going bad. (I assume that when you swapped them, you bent some wires that had been making intermittent contact [arcing] to a new position which fixed it (for now)). <br /><br />- The advice several folks gave me was "See if the problem follows the part". If the swapping of the spark coil made the problem go from one to the other, it is definitely the spark coil (or wiring connections?). <br /><br />- OBTW- You DID clean/replace the plugs first, didn't you? Spark plugs are one of the cheapest things to replace, and most likely item to be bad on any outboard engine.<br /><br />FWIW- I identified my problem within the first 15 minutes, but was sure "It couldn't be that" since that part was new... Two weeks later (after replacing plugs, rebuilding carbs, tracing all wiring, swapping CDIs (twice), removing and replacing the flywheel (twice)- it was that bad (new) part.<br /><br />It sounds like you are almost there...<br /><br />regards,<br />Jim