Dead Relay??????

[psychlist]

Rejetted Monica today (only took me 4 hours but I'm chuffed I did it myself :smug: ) but when I put everything back together it wouldn't start, wouldn't even turn over on the button. Whenever I turn the key to "on" the main relay buzzes. Is it just a dead relay or have I killed my race bike????? :(

[phil_h]

Just to start the thinking process ...
when you turn it on normally, the fuel pump buzzes as it runs (?) ... a poor battery connection could produce low voltage - check every bit of the earth connections (if you have a voltmeter it helps enormously)

if you try the starter button do you get anything ?

and I was then going to ask you about the lights, but quickly decided not to mention them :)

[psychlist]

When I turn it on the warning lights come on and the relay buzzes loudly, when I thumb the starter it changes tone but nothing else happens :(

[skidlids]

Paul by the relay do you mean the starter solinoid, if so they run close to the cylinder head and you may find onr of the leads is arcing out.

[psychlist]

Under the seat next to the fuse box thers 2 relays and a connector for the sidestand switch (which I've got shorted out so I don't have to worry about that). I've replaced the smaller of the two, it's a 12v 40A 5 pin relay. It was buzzing when I turned the ignition on, now, after replacing it, when I turn the ignition on everything seems tickety-boo until I press the starter. Then get no response from the starter! If I press the kill switch the warning lights dim! I've tried charging the battery in case it had gone flat but that hasn't helped! Do you think it may be the leads to the starter? I must have disturbed something when I took the airbox off and rejetted the carbs but I'm lost as to what?

:puzzled: :(

[phil_h]

psychlist
if you have a trailer/van and want to bring it over so we can go through all the wiring etc you are very welcome.

give me a call on 01798 831647 if you need more help

phil

[psychlist]

Thanks very much for the offer Phil but I'd have to hire a van to get there.
I'm sure I'll get it sorted :o , how long have I got til cadwell trackday?!

[bradders]

not long.....

[phil_h]

well then, if there is no super-urgent-rush, I can pack a little bag of useful electrical diagnostic tools (multimeter and terminal screwdriver :) ) and come over if you like.

(I don't know, the things we'll do to get a peek at someone else's race bike)

[psychlist]

You have a U2U sir :eureka:

[phil_h]

u2u2 mate

Its all right, I can take being unwanted :sniff:

Why are racers so secretive about their bikes :saint:

I'll promise not to tell :D

[psychlist]

Nothing secret about MY DD bike Phil as anyone will testify :biaggi: just thought it was a bit of a trek for you mate.
U2U2U2! ;)
Thanks,
Paul.

[KeefyB]

Those Siemens relays are pretty crappy.I seem to remember one does the sidestand cut-out,and the other powers the injection/fuel pump.Sounds like one or the other could be faulty.Have replaced both on the missus bike,cost about a fiver.We keep a couple of spares under the seat.

[psychlist]

Thank you for coming all the way over to Wobbling town from deepest Sussex mate, found an earth wire I'd left off when dismembering the airbox but couldn't trace the dead short circuit that blew the main ignition circuit fuse :sniff:

Looks like the Monster wont be at Cadwell, does Lizzie have any reserves on her list? Might be best to give it a miss altogether........

[phil_h]

Hey - no problem Paul !
Its only a 35min ride over the back roads - but I am going to adjust the beast's poxy headlight (jacked up rear !) before I bring that over again :)

Guys - We are open to suggestions as to what (other than a fault in the ign switch) could cause a short on the feed side of the main fuse only when the switch is on.
The short is still there with the connectors to the kill/start switch and the ign/coils disconnected.
Our next step is to drop the reg so we can get at the ign connector block at test there. (I bet monsters are hard to hot-wire cos I couldnt get my fingers in there enough to split the block otherwise !)

[Edited on 20-7-2005 by phil_h]

[psychlist]

Was gonna post a plea for help on UKMOC but their site is still occupied by Fidel Castro's henchmen :lol:
:( :sniff: :puzzled:

[phil_h]

Paul - I've printed out clearer circuit diagram (oops - it was in my haynes manual all the time !) and I think we really should attempt to hot-wire everything out next time ! (Well the switch and the relay anyway)
I'm ok for a re-match (harris versus ducati !?) on thursday.
I'll bring some more wire :)

[skidlids]

I'm sure we could sort it Sunday evening at Cadwell

[AK]

Paul - have you got Alans mob no - cos he says to give him a call about 6.30 tonight & he can try & help?
(but not too much later, as he is off about 7ish to Marks for the evening with the bike, as I am out!)

He doesnt type much - so its better on the phone!

C

[psychlist]

Chaz, yes thanks gorgeous, I'll give him a bell if I get home in time dear.

Phil, thanks man, you're a hero mate :cool:

I'd be lost without you all cos I'd have to go to a trader and the ones i've spoken to are booked solid for 3 weeks!! :(

[bradders]

Paul - if we get it to cadders and it cant be repaired I'm sure we can find you a bike to ride mate ;) (you are in a different group to me arent you??)

[psychlist]

:o Thanks Paul, talk to you about that mate :o

Sorry didnt ring AK last night, didnt get home in time :rolleye:

Suggestion from UKMOC site is it could be starter relay contacts touching cylinder head..............?
It HAS to be something like that surely, from when I took off the airbox and replaced it after doing the carbs :puzzled:

[skidlids]

Originally posted by psychlist

Suggestion from UKMOC site is it could be starter relay contacts touching cylinder head..............?
It HAS to be something like that surely, from when I took off the airbox and replaced it after doing the carbs :puzzled:

Same as my suggestion almost a week ago then, I assumed you had checked this out by now

[AK]

Alan home all evening tonight (NOT doing dyno's again! - this week!) - so if still stuck, do give him a call Paul:)

[phil_h]

Originally posted by skidlids
Originally posted by psychlist

Suggestion from UKMOC site is it could be starter relay contacts touching cylinder head..............?
It HAS to be something like that surely, from when I took off the airbox and replaced it after doing the carbs :puzzled:

Same as my suggestion almost a week ago then, I assumed you had checked this out by now

No mate, that was the first thing I wriggled out of the way, and its currently hanging by the side of the bike so we dont jump when the starter suddenly turns the engine over :D

I'll be round there again tonight with my magic multimeter.

[psychlist]

Monica's on the run again thanks to Phil H and his little fluke meter and a screwdriver :biaggi:
Turns out it was a dodgy diode actually INSIDE the ignition circuit relay that was shorting out directly to ground :o Phil broke it off "cos you dont need it anyway" and it works just fine :biaggi: Even with the revised fuelling with the new jets I fitted to the carbs, it runs smoothly and picks up just great :lol: Wahey.

Oh! Anyone got a spare slot for a lift to Cadders :puzzled:

[bradders]

see u2u....glad its sorted!!

[psychlist]

Thanks Paul, I can't believe such an offer, yes please mate :D