Topic: 81' honda cb750 main fuse issue

[jonathansbrookshire]

just bought a 1981 honda cb75 and im having a frustrating issue.  The bike runs great except for the fact that the main fuse blows when the bike gets hot and only seems to happen in gears outside of 1-3.  I can let the bike completely open up in neutral for as long as I like and it doesnt blow.  I dont have to hit a bump either.  Ive been on the freeway and replace the fuse 4x to get home (about 3 miles). Im using the 30a strip fuse which I believe to be correct and Im on smooth ground.  So I dont know if its a simple short or what... Help?

[OldSchool_IsCool]

Make sure your fuse clips are VERY clean and VERY tight.  Corroded or weak clips cause heating which can melt fuse innards.  A 30A fuse, eh?  Seems like a lot. 

[jonathansbrookshire]

yes, Ive got 4 15A glass fuses in my main box on the handlebars and my main fuse, in the left cover of the bike, next to the battery is a 30A strip fuse. Thats what Ive always had.  Though, I just noticed that the previous owner taped the box shut with black electrical tape and that there is a bit of corrosion on and around the connectors.  The bike ran fine up until about a week ago.  Im going to clean them now and test it out maybe later today when Ive got somebody around to give me a tow

[fmctm1sw]

http://forums.sohc4.net/index.php?topic=53974.0