I have an 07 150hp optimax (2.5L)
Last fall, I noticed a drop in rpms and difficulty turning over motor. Tested coils and then found #4 was dead. Changed it out, but in the process, noticed that the coil mounting bolts were stripped. I cleaned threads and snuggled them hand tight for the new coil. Took the boat out for a run and it ran well. Next time out, coil out again. Opened the cowling and found that same coil hanging loosely. I have not had time to test it (ice everywhere here). My questions are multiple:
Even if the wiring harness for the coil is snug, do I need to helicoil this asap?
Could ziptying it to the mounting block work?
I also read that for some optimaxes, they reccomend changing out all coils at once, does this oblige for the 07 model as well?
Thanks in advance. I look forward to being here at this forum.
Last fall, I noticed a drop in rpms and difficulty turning over motor. Tested coils and then found #4 was dead. Changed it out, but in the process, noticed that the coil mounting bolts were stripped. I cleaned threads and snuggled them hand tight for the new coil. Took the boat out for a run and it ran well. Next time out, coil out again. Opened the cowling and found that same coil hanging loosely. I have not had time to test it (ice everywhere here). My questions are multiple:
Even if the wiring harness for the coil is snug, do I need to helicoil this asap?
Could ziptying it to the mounting block work?
I also read that for some optimaxes, they reccomend changing out all coils at once, does this oblige for the 07 model as well?
Thanks in advance. I look forward to being here at this forum.
