gs1100g keeps blowing main fuse

[daturat100r]

my gs started blowing main fuses 300km after doing valve clearances but only at a certain rpm.Turned out to be the feed wire to the horn was making intermittent contact with the frame when vibrating at certain rpms.was bloody frustrating to find the fault and was cured by simply rotating horn in its rubber mount.not saying its what your problem is but look at all accessories as well as they are fed power all the time and the switch closes the return loop from the accessory

[rustybronco]

What size Honda unit would you recommend ???

Take your pick. http://www.thegsresources.com/_forum...d.php?t=134690

[argonsagas]

Take your pick. http://www.thegsresources.com/_forum...d.php?t=134690

Thanks, Dale. You got it done before I saw his query.

I have used the early 1980's 400/450 series of Hondas as source. They are easy to find, not expensive, and usually in good condition.

[Redman]

my gs started blowing main fuses 300km after doing valve clearances but only at a certain rpm.Turned out to be the feed wire to the horn was making intermittent contact with the frame.....

Fester's (Original Posters) bike will have MAIN fuse and fuses for HEAD, IGNITion and SIGNAL. A short to ground in his bikes horn circuit should blow his SIGNAL fuse (but could possibly blow the main depending on some circumstances). His problem is the blowing the MAIN fuse.

Perhaps your bike is one of the 78 or 79 750s that has only one fuse.


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[Fester]

Thanks guys we think we've nailed it find out next week

[bobgroger]

My GS850 would intermittently blow the main fuse when revved. After a period of time it would also blow the blinker\brake and headlight fuse. Turned out the charging voltage was over 16 volts. I got a new regulator but it is on my winter project list so I am not 100% sure that is the fix...

[tkent02]

Have you gone through the tests in The Stator Papers?

[koolaid_kid]

My GS850 would intermittently blow the main fuse when revved. After a period of time it would also blow the blinker\brake and headlight fuse. Turned out the charging voltage was over 16 volts. I got a new regulator but it is on my winter project list so I am not 100% sure that is the fix...

This is a very clear indication that the Regulator part of your Regulator/Rectifier is not functioning. The Regulator's sole function is to keep from over-voltage. It is its only function. It is not working on yours and needs to be replaced prior to any other work, including the Stator Papers.