Had a problem with the Husqvarna 257/262 conversion saw that I built. It wouldn't hold a tune even after a carb rebuild, and seemed to change from day to day or even minute to minute. Longest it stayed in tune it was about 15 minutes, there was just no consistency.
Well finally after the saw had a good heat soaking, I had my answer. The saw quit and would only run for a second when I tried to fire it up again. Letting it cool down it started right up and ran fine, so I had my answer, a bad coil.
Because the coil kept on changing output, it seemed to be the tune, as sometimes it would rev, and sometimes it wouldn't, and sometimes didn't want to hold an idle.
The coil was made by Ducati, and I've read that other people on this forum have had problems with those coils. Had a spare one off of a Husqvarna 50 lying around, this one was made by Electrolux. Swapped it in and it fired right up, no more of the occasional kickback during starting (which should have tipped me off) and now running as it should.
Spent a lot of frustrating time chasing this thing because I thought it was a tuning issue. It shows the value of having a spare coil around, it was a quick fix compared to the time I wasted.
Well finally after the saw had a good heat soaking, I had my answer. The saw quit and would only run for a second when I tried to fire it up again. Letting it cool down it started right up and ran fine, so I had my answer, a bad coil.
Because the coil kept on changing output, it seemed to be the tune, as sometimes it would rev, and sometimes it wouldn't, and sometimes didn't want to hold an idle.
The coil was made by Ducati, and I've read that other people on this forum have had problems with those coils. Had a spare one off of a Husqvarna 50 lying around, this one was made by Electrolux. Swapped it in and it fired right up, no more of the occasional kickback during starting (which should have tipped me off) and now running as it should.
Spent a lot of frustrating time chasing this thing because I thought it was a tuning issue. It shows the value of having a spare coil around, it was a quick fix compared to the time I wasted.
