Blowing Ignition Fuse

I kicked the 900 in the guts the other night... Fired too

But it blew the ignition fuse, replaced it, blew again, changed the solernoid and it was ok for a couple of kicks then it blew again...

Someone please suggest what and where I should start looking.... Cheers

 

The >> FUSE BOX << itself!

It's likely that there is a problem with the clips which hold the fuse fast within the fuse panel.

They age and give-up their hugging capacity; leading to an occasional high-resistance issue that blows fuses -- OR-- develops a mind of it's own and opens the circuit -- killing the ignition without warning.

If that's the Fuse Panel that Yamaha stuck-in there ... when they made the bike ... it's time for you to give your bike a Heart Transplant!

 

Take a look at #2 of this page-http://www.geocities.com/MotorCity/Speedway/7795/xjfaqbig.html?200711

RickCoMatic is right.

 

Thanks guys.... Exactly what I was looking for 8)

 

I like the thought that it is that easy but thing is that this bike sat for years without being used with the fuse box covered and out of the weather. The box, wires and connectors are in mint condition and do not appear to be at fault.

I'll be checking a couple of other things I read in that article, but may end up just taking it to an auto electrician if I can't sort it.

 

Alive,

If you are blowing fuses, you are drawing excessive current. A high resistance condition would do the exact opposite. Do you have a multimeter? Do you have the correct rating of fuse in there? Have you looked for fraying wires that are shorting? That is where I would start.

Phil

 

Hey Phil,

I have a multimeter, the correct rated fuses and have had a quick check for broken or frayed wires....I'm going to have a decent look today

 

Alive,

Measure the voltage across the battery and give it a kick and see what the voltage does. If it drops appreciably, that is another sure sign that there is a short. You could also measure the resistance of each side of where the fuse is to ground and see if you measure anything. It should be an open circuit or a very high resistance.

Good luck, Phil


[/quote]

Hey Phil,

I have a multimeter, the correct rated fuses and have had a quick check for broken or frayed wires....I'm going to have a decent look today [/quote]

 

Alternator Brushes OK?

There's been a good deal of us who have found them below the service limit.

 

They have only done around 9k miles but I will check them anyway

 

Looks like i found it... The start button wire was crushed in the hand control...

 

Hmmmmm its actually the kill switch wire thats crushed and burnt on the plug end.

 

Got my Maxim cheap because of that problem. Good job!!

 

You lucky bugger.... :lol:

Sorted out that wire and no more blown fuses

 

Alive,

Good find! Dead short, that was what I suspected.

Phil

 

Thanks for your help Phil