Charging curcuit melting fuse

[cglg894]

I have a 2003 GTX 4-TEC Supercharged skit that we took out otday and about a half hr in to ride the warning light came on and gave cose 12 v low. Got the ski home and found the 30 amp fuse for the charging curcuit melted in the holder. i replaced the fuse and ran the ski on a hose, after a couple minutes of running the fuse was almost to hot to hold. I cleaned all grounds on block and battery, cleaned positive cable still same thing. I checked the voltagea t the battery and it is runing 12.5 to 13 volts at idle to 4000 rpm. I checked the ohms and voltage of the stator and all are within spec. i replaced the fuse holder as it was melted and not making goood connection.

What should i check next? Is it possible that the battery is somehow causing this? The battery started the Ski just fine.
Thanks
Craig

 

[Dennis]

They are known for the fuse fitting loosely in the fuse holder and therefore causing alot of heat. You have probably already fixed the problem when you replaced the holder. :cheers:

 

[cglg894]

I had read that they were prone to doing this prior to replacing the fuse holder, however the fuse is still getting hotter that I believe it should after running for a couple minutes, that is why i am still concerned. I ran the ski four maybe 3 minutes on a hose and the fuse was very hot.

 

[Dennis]

If only the fuse holder is hot and not the wires leading to it then the heat is being caused by resistance of the fuse holder.