Horn not working properly.
 

My horn on the bike is very low, when I press the horn switch the clocks dim and a faint noise from the horn, all fuse's are ok, any advice or help please.

Re: Horn on Sv650 help please
 

Probably high resistance from a corroded connection or a stuffed horn.

Pete

Re: Horn on Sv650 help please
 

Battery?

Re: Horn on Sv650 help please
 

Definitely the R/R, one from a honda should fix it.




SV horns are a consumable. I replaced mine years ago with a 10 quid loud plastic device from the local car shop.
You need to get the right one though. cheap earth return is no good on the SV.

Look at the back of the horn, you'll see a screw locked with a dab of paint/lacquer. This is the adjuster.

Commonly if the horn makes a click and uses lots of current, (this evidenced by the lights dimming), the points aren't separating - back the screw out a bit.
The reverse is also true: If the horn makes no noise, (or if you back the screw too far), the points aren't closing - turn the screw in a bit.

If the supply is ascertained as good but the horn does nothing; no noise or clicks, then there are faults that adjustment may not cure - the coil may have failed or the points may be corroded. Usually however if it makes a click then clearly this demonstrates the coil and points are continuous - adjustment may well cure the problem.

Re: Horn not working properly.
 

Too much heat from the radiator ( especialy in these weather conditions) can affect the std horn's performance. Check it out both Hot and Cold.