electrics on a cbr600 fw 98

[fuel]

a couple of time this week, i've gone to start me bike and whats happened is as follows....

1) de-arm imob
2) key in ignition
3) turn ignition on
4) press the starter button

it is on point 4 that the electrics for the bike completely cut out, no dash lights, no starter, NOTHING

give the bike a swift slap on the seat, " drivers not passenger's" and electrics come back on.

now back to point 1 threw 4 and one of two thing happens

either the bike starts or it all cuts out again

now this problem could happen a few times in a row, and then it decides the electrics will stay on, and once its running its fine.

i doesnt cut out or anything (touch wood)

so tomorrow im gonna take the seat off and check connections ect.....

and i just wondered if anyone can offer any input into what might be happening

or if someone has had a simular experience, what it turned out to be

any ideas welcome

thanx fellow bikers

Fuel............

[Kickstart]

Hi

If it is like the early 1990s CBR then just in front of the seat there is a starter relay that also has the main fuse for the rest of the electrics. These fail and are not cheap (~£75). Worth checking out once you have checked all the other fuses and the battery contacts.

All the best

Keith
____________________
Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[fuel]

i will have a look for it.

am worried it will be a pain to find though coz its intermitant fault which is why im asking for idea's

is there a way to test this relay you speak of? and any ideas on how i will recognise it?

thanx Fuel...........

[mchaggis]

[fuel]

[Kickstart]

Hi

The relay was about 6" in front of the battery. Has a couple of large leads to it (one from the battery, one to the starter motor) and a connector with several wires. Also has a cover for a large fuse on it.

Not sure how you test it, but we found it when Ants bike would not start one night.

All the best

keith
____________________
Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[stinkwheel]

I agree with Kieth on this one. I have has several of these things let-go. If you follow the big fat wire from the battery positive, it will be attached to the top of the starter solenoid by a big bolt.

On a lot of bikes, all the power to the rest of the bike goes through a connector block on the side of this solenoid. It may not be a fault on the solenoid itself, could just be corrosion in the terminal block or fuse holder that attaches to it. Pull the block apart and have a good look, give the wires that attach to it a bit of a wiggle to see if they are about to break off (if you can pull a wire out of a connector block without exerting yourself, it was too loose)

The solenoid should make an audible 'click' when you press the starter button.

Could also be a loose connection or loose fuse somewhere else in which case you will just have to go through and look for it, start at the solenoid and work forwards.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[fuel]

just to let you know i took the seat off today and started at the barrery and found that even though the battery earth screw was tight, the conector was moving around, so i've added a washer and now the connection is all nice and tight.

hopefully this has cured it, i will fine out this week, to and frow from work

fingers crossed

thanx for you help fellow bikers

keep it on the blackstuff

Fuel..........

[stryker]

FWIW, I once had the starter on my trike fail to operate every so often. Even though the big heavy connector and nut were tight, when I took it apart there was a big buildup of carbon and assorted cr4p. Cleaned it off and everything was ok.
____________________
Now what?