30A main fuse melting

Hello there,
I recenty bought a 2005 vfr v tec bike.One problem is that the 30A main fuse (B) or the PGM-fi fuse by the Battery gets really hot.Not the fuse by the starter motor relay.I check the voltage on battery its about 13.4v while idling and about 15.1v when about 5000rm.the fuse ,the casing and wire get really hot but does not blow the fuse as yet.What should I do?

 

www.Vfrdiscussion.com has a lengthy thread just for the 6th gen Vtec electrical gremlins.. I remember someone just posted about the 30 amp fuse burning/smoking..Try it andsee if they can help you.

 

Heat is caused by resistance, high resistance is usually caused by one of the following. A: loose connections B: Corroded connections C: short to ground before the intended appliance(consumer) D: short to another power source E: An internally shorted sealed component(least likely & hardest to pinpoint, even w/ a good manual). Not that this applies to your problem just general rules of thumb. I kept blowing fuses for my marker & instrument lights, by process of elimination I found that the licence plate lamp socket was shorted out. I have a 86' I'm sure yours is a little more advanced but just remember to check all the simple things first. Best advise on elec. trouble shooting is start @ one end of a circiut & work your to the other, if you jump around its easy to get confused. It took me years to devolope the patience for doing this. I see young techs spins themselves in circles everyday on electrical issues because of this.

 

Thanks Tbone86 I will try this.

 

Always, and I mean "Always" verify your Grounds and Power first!

 

I think i resurrected a dead post oops clicked on one of those similar thread links, and just saw that the last post was 07 oops (note to self don't reply to threads while wasted) sorry

 

+1 on this. last time i had an oh shit moment, it turned out to be a loose ground i forgot to retighten after doing the pair and evap delete...