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ttwill

Joined:

Jun 11

Posts: 3

ttwill says:

triumph TT600 cuts out/relay clicking

hi, i have a 2002 triumph tt600 with 20k on the clock. i'm having intermittent issues with it 'cutting out'. the bike will start fine to begin with but cuts out mid ride. when it does this the engine management light can be seen to continuously flicker and the main power relay can be heard flicking on and off rapidly. if i turn the ignition completely off and on again, usually the engine management light and the relay will continue 'flickering' but eventually the fuel pump (which is fed by this relay) will prime as normal and the bike starts only to cut out again a mile down the road.  


at first i thought it was a faulty fuel pump which i then replaced only to find out it was being controlled by this relay. i've tried replacing the relay but no difference. i tried checking various things that were suggested e.g. side stand switch, kill switch, battery, rectifier, bad connections, alarm, all seem fine. i then booked it into my local triumph dealer who had a look and said it was a corroded coil pack (for the spark plug), they replaced this and the plugs but 50 miles later and the problem has reared its head again. 

i would be grateful for any suggestions or ideas as i've contacted my dealer again but they have a 3 week waiting list!

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  • Posted 4 years ago (17 June 2011 05:15)

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triumphrider600

Joined:

Feb 09

Posts: 550

this is

one of those faults that will be hard to trace due to being intermitent.
I would though, from what you have outlined think you have a power issue to the fuel pump relay. This may be a poor connection somewhere or your alarm pcb going into fault.
Try running a temporary live from the battery to the relay so it is running regardless of the ignition and alarm and then go for a ride. If the fault doesn't appear then at least you have tracked down the direction to go in. I would make an educated guess that it is the alarm as 'usually' they kill the ignition and fuel pump circuits independantly. If your alarm is the dealer/factory fit datatool, then they should have supplied you with a plug with 2 green looped wires. This plugs in the back of the main fuse box in place of the alarm plug, in case the alarm goes to fault. Also the alarm 10amp fuse will be in gthe main fuse box too.

Tom

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Dabbsy

Joined:

Aug 02

Posts: 488

Dabbsy says:

tt600

If the coil pack was faulty the bike would misfire, not cut out completely. I wonder if the battery isn’t losing charge, then when you take the load off it, it recovers to some extent. However, that probably wouldn’t be enough of a recovery to spin the engine over again. It would be worth checking the battery voltage, it should be 13.5V to 14 V with the engine running, 12.5V with it off.

The alarm could be the culprit, but if it’s the factory-fit, then that shuts down all the engine management, so you’d have no sign of life at all. The regulator/rectifiers on those bikes are pretty good, but the stators are pretty poor, if part of that has cooked, that could give you the symptoms you’re describing…..

 

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ttwill

Joined:

Jun 11

Posts: 3

ttwill says:

triumph TT600 cuts out/relay clicking

thanks for the quick replies and suggestions guys.


as to the alarm, it is a datatool system 3 which was fitted for the previous owner at a triumph dealer. i've located the 10a fuse which is in the main fuse box as described. i'm having trouble with the 'shorting link' though. you mention 2 green looped wires that should have been given to me, all i have are the wires and plug in the 1st photo (which i dont think are what i'm looking for). i've contacted triumph and they will supply a shorting link for £11, which i'm guessing will resemble the plug in the 2nd pic(taken from another forum)? so this should fit into the bike in place of the alarm plug but i cant find said alarm plug... am i looking for the correct thing here e.g. 2nd pic. 

i'm going to make up a temporary live to the relay just incase the fault still appears after the alarm has been bypassed, least it should get me home. 

as to the battery/stator, i've checked the voltage across the battery (engine off/running) and that seems fine. i will take some readings from the regulator/rectifier and the stator and check that all is ok there before i go anywhere!

again, much thanks!

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triumphrider600

Joined:

Feb 09

Posts: 550

yes

the 2nd image is the plug that you need. It would have been given to the owner when Triumph fitted the system 3. As that S3 is custom made for Triumph to fit it has a similar plug on the end that goes into the back of the fuse box/loom, I believe. The plug in the 2nd pic is what is removed 1st.
The good news is that if it is your alarm at fault with the S3 you can buy a new pcb and matching fobs, instead of a whole alarm.
What is your local Triumph dealer like? If you buy the link they may only make a nominal charge to swap it over, as they will know exactly where it is. Thus in effect removing the immobiliser part of the alarm from your bike.

Tom

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James600zx

Joined:

Sep 07

Posts: 2758

James600zx says:

Triumph TT600 cuts out, relay clicking.

I think if it starts it's unlikely to be the alarm/immobiliser.

When the bike cuts out will the starter turn the engine over straight away?

The flickering relay suggest low battery voltage. You need to check the battery as soon as the bike cuts out, not when the intermittent problem passes and you've ridden it home.

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