Topic: Your Bike Ever Hissed At You?

[Really?]

Now knowing what that is, still put the 15 amp in and feel better knowing either way.

[Greggo]

THIS is why I ask questions.  THIS is why I love, and donate to, this forum.

[Deltarider]

Your Bike Ever Hissed At You?

Maybe it tries to fart.

[Greggo]

Installed the 15 amp fuse, and everything still works.  I haven't ridden today, but she started, and revved fine with the lights on high, the turn signal on, and the brake light activated. 

The bike does have coils from an 80's Honda, with an OHM rating in the three point somethings.  Is it safe to put a 20 amp fuse in, or carry one in case I blow the 15 (just to limp home on)??

[Duke McDukiedook]

Only when I threaten to throw it out for scrap.

[TwoTired]

I think a 20 will be fine.  I know some of the 650s had a 30 Amp main fuse.  I'd be uncomfortable using that in a Cb500, though.

Hissing from an electrical panel, does sound like some sort of arcing.  Check all the plug terminals for change of color/corrosion, etc.  Then look at all the crimp connections from wire the terminals of plugs/sockets.

You could also move each wire in the area gently without moving others, to see if you can cause the hissing.  If so, you've just gotten closer to the source.

Cheers,

[jacquesleclochard]

My bike has never hissed per se.  It has however given a nice pop upon turning the key to on with the kill switch already in the on position.  It happens before I hit the starter or kick obviously.  I assume gas is still in the cylinder but never got fired.  And it fires when the ignition is put to on and the coil is powered up. 

Popping, or "sneezing"? Mine does that at the situation you described.
It's silent at a cold start, but after a short run the engine "sneezes".
Should be a carb problem, then.

[camelman]

The hissing might be fuel combusting in the cylinder and escaping past the intake valve. Engines often stop at the same rotation angle, so if that angle corresponds with fuel being near the plug and a points system that erroneously fires when you turn on the ignition, then you could get a hiss from escaping combusted gases. That situation would require a fuel leak, excess fuel in the intake runner, or something of the sort, to migrate fuel into the cylinder while the engine is at rest and old points that need to be dressed.

Camelman