My main fuse keep blowing I found 5 striped wires under the back fender and fixed them.I am not sure if this is the only problem.

Obtain a factory wiring diagram, then determine which wires are connected to the fuse that blows, then trace down the wires for the shorted one

Possible the wire to the fuel pump has gone short to the chassis, or the fuel pump has burnt out.

sounds like you have a short in the wiring

are all the signal light bulbs good? if one is out this will cause the blinker to run fast also maybe a bad blinker can

the head light and tail light are on the same fuse check under your rear fender and seat for a naked wire somtimes the tire wares on the wires if they run under the fender also check all running light wires (ie front fender light I had this problem with a FXR and it was the wire under the front fender to my fender light

50amp only clue and you dont have the book, the FSM.
nor access to alldata.com?
if you did youd, not be asking right?
my guess is that fuse is in the mains box under hood..
and is a real fuse and not a circuit breaker found elsewhere....????
old car, and can be anything this old.
sounds like fuse #33 in the main box blew. and feeds the white wire main.
USA car? ABS opted? A/C opted. sure.
top cause, shorted alternator, so take off that big wire from alternator
and see if fuse blows now. (do so with battery neg lug removed
the remove alt big wire and tape it all up, so it can touch metal.
then put back battery Neg lug, and last the fuse.

the whtte feed goes vast places and runs whole sections of
the cab fuse boxes and power windows.

if the Alt is good.
then you must start dropping all white wire loads.
if it still blows, the harness is shorted.
I personally just uses a temporary circuit breaker in place of the
50 amp to find the short and an ampclamp DC ammeter.
fast.
login to alldata.com and follow the big white wire.

I would start by checking the wires under the rear fender. A lot of the times there is a exposed wire or shorted out wire under there. It will continually blow the fuse.

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_5bac37c3cb991fdb

Disconnect The AC compressor clutch, does the fuse still blow.

under your seat there is a bunch of wires 3 of the yellow i think wires goes to a pigtail thats the wiring harness for your stator and rectifier i had 03 1100 spirit shadow and 1 day i was riding and it jus quit on me i finally got it home broke it down n noticed the fuse kept popping every time i changed it then i found the melted pigtail looking for a short so i cut pigtail out straight wired each wire an never had a problem since.

You will boil your battery with 18 Volts on it but that won't blow your fuse. I would look for chafed wires or the light socket itself.

Check the fuel pump relay, i am not sure but i think there are two of them. Check the wire harness too, mice may have chewed in to the wires causing a shot in the system. 
Good luck and hope this helps.

Yes! it sounds like a power supply problem! or the flyback in the main board needs replaced ( part is in the $70.00 range