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Tiger's 885i & 955i - Mods & Workshop Workshop and technical talk for the 885i & 955i Tigers

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Old 09-25-2012, 11:01 PM   #1 (permalink)
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Talking Weird electrical issue/no start

2002 Tiger, typical ran on battery until it died problem

I went though the electrical checks here and diagnosed the regulator as the problem and got one from Ricks.

I installed the regulator and replaced the female bungs for the fuel injection tank while I was at it. They had been leaking when I took the tank off for maintenance before.

Put it all back together and it will not start. It will turn over strong but will not fire.

Took it back apart and got out the trusty test light. Hooked the battery back up and tested for signal at the coils and the injectors while cranking and got it.

Took out the new bungs from the tank and double checked them, they work fine. Listened for fuel pump engaging, it runs when the bike is turned on.

Reading another thread I will test the main power relay and the side stand switch tomorrow, but is there anything ELSE I should be looking for?

Thanks!

DustyKat
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Old 09-26-2012, 03:11 PM   #2 (permalink)
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Most likely the problem is related to your fuel flow.

To validate:
Disconnect the top Fuel connector on the pump plate and put the hose/fitting into a jar
Turn on ignition - Fuel should pump out of the return hose into the jar at pressure.
Caution - only do this if the fuel hose male fittings are non-valved (do not run pump into a closed fitting which includes the bottom outflow fitting if the mating male fitting is removed)

If the pump was turned on with the BOTTOM fitting disconnected, it is possible to blow the hose off the filter inside the pump assembly.

If you can spray fuel starter into TB's and get some kind of 'ignition fire' then you know your problem is fuel related.
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Old 09-28-2012, 03:23 PM   #3 (permalink)
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Hi Dustkcat - a question rather than a solution ( after a 2 year break I've got a charging prob again ) - what tests / checks made you condemn the regulator ?
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Old 10-03-2012, 03:51 AM   #4 (permalink)
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Ok, so I tested as suggested and of course NO FUEL!

So I look at the BRAND NEW female bungs I put into the tank, take them out and they seem to be working fine when you put the male side in them. *Shrug* put them back in and put the tank back on, still no fire and no fuel at test.

I put the old, leaking, female bungs back in the tank and lo and behold the bike fires right up.

oh and I was right, the regulator was the charging problem. Bike now is fine other than me wasting money on new parts and chasing problems that shouldn't have been there. Also wasting 100 bucks in gas in my truck going back and forth to work when I could have been riding my BIKE!!!
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Old 10-03-2012, 06:22 PM   #5 (permalink)
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I've seen it reported that if you thread the metal ones in too deep they will not open properly .......
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Old 10-03-2012, 06:24 PM   #6 (permalink)
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Quote:
Originally Posted by tigerrider View Post
... ( after a 2 year break I've got a charging prob again ) - what tests / checks made you condemn the regulator ?
Here is diagnostic guide for you:
http://www.triumphrat.net/speed-trip...r-upgrade.html
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Old 10-04-2012, 01:16 AM   #7 (permalink)
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Quote:
Originally Posted by DEcosse View Post
I've seen it reported that if you thread the metal ones in too deep they will not open properly .......
These were the nylon versions, both the old sets and the new sets were installed to the same depth as I also thought that may be the case.

Ah well, it's running again so I can be happy!
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Old 10-06-2012, 10:24 PM   #8 (permalink)
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Ok, now I'm pissed....

Rode the bike for two days and the battery is dead again! It's running off battery only, after I got the bike running, the volt meter showed 12.75 with the engine reved up and a full charge on the battery. It also fell to pretty much battery voltage at idle.

I am tearing my non existent hair out here. a charging system is not this complicated. What the frikin hell!
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Old 10-07-2012, 06:45 AM   #9 (permalink)
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If 12.75 is all you're getting across the battery there's nothing (well virtually nothing) reaching it from the charging system. Have you been through d'Ecosse's guide? Just changing things at random is unlikely to sort it out.
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Old 10-07-2012, 01:10 PM   #10 (permalink)
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Quote:
Originally Posted by Dustykat View Post
.... after I got the bike running, the volt meter showed 12.75 with the engine reved up and a full charge on the battery. ...
That is a FAIL, not a pass.

12.75 is not a good result and means you have a phase down at minimum - you either have stator or R/R fail - do the tests per the sticky reference thread.
You say you diagnosed to the regulator and replaced it, but now appears it was more likely the stator - was the R/R plug n play, or did you do any wiring yourself to connect it up?
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