CDI Coil cracked

[lemming]

Could this crack in the CDI coil cause poor spark resulting in poor revs ?

[Bombardc2]

I would say so, the coil will no longer be insulated and can arc to other components

[lemming]

Yes I changed them over this morning and this seems to be the problem, new one ordered.
Would this also account for an over temp warning?
Cheers Bombardc2

[Bombardc2]

If it was run for a while with a misfire it could get quite hot and cause the overheat warning

Regards
Bill

[Locozodiac]

Try filling the cut with epoxic cement to isolate arcing, keep old one as spare. That part seems to be a ignition coil, you should have one per cylinder. If when placing a new one, still continue to have temp issues, check water pump condition, probably impeller is worned achieving low cooling pressure than required.

Happy Boating