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Startus interruptus - a new twist on an old problem

Mackers

Mackers

Cruisin' Guzzisti
GT Contributor
Joined
Oct 27, 2008
Messages
284
Location
Victoria, Australia
Left my Breva 1100 unridden for 3 weeks, got kitted up early to beat the forecast 39C day. Thought it probably wouldn't start but I'm an optimist.

Turned the key ON and received the red "triangle of death". That's never happened before. Ignored it and pressed the starter. The bike fired up like a champ but still displayed the red triangle. Restarted several times to see if the fault would clear. Nope.

Went inside and unkitted - it was warming up - and found my copy of error codes. Went back to the bike, turned it ON - no triangle of death!

Pressed starter and no start! Got a "choonk" from the starter motor. Tried again but same result. (This is typical if I leave the bike for a few weeks not on the charger. I fitted the MPH solution years ago which got rid of the relay click problem).

Checked the ECU error codes - none active, none in memory. (Some old dashboard errors present that never clear.)

It's almost as if the original error was saying that it couldn't do a voltage check, and so allowed the starting system to operate.

Anyway, the Guzzi is on the charger - and it's too hot to ride. Any views as to what happened?
 
Usually, the red triangle of death appears at turn on, because the oil pressure sensor switch is open. Sometimes they jam before they close the contacts.

Try running the motor for about 30 seconds (as long as you're confident there isn't an oil pressure problem), switch off, wait a few seconds and try again. There's every chance it would have cleared (but will appear again).

Changing out the oil pressure switch for a new one, doesn't always fix the problem, like there's an inherent fault in these damn things.

My $0.02¢.
 
gremlins - not supposed to add water remember...

Generally, I find the connector to the oil pressure switch the most often culprit (for the red triangle - you can start the bike before the instruments have done their sweep and you might not get the triangle). I unscrewed mine and put on a standard 1/4" quick connect lug and no more problems of this sort.

I am pretty sure this problem and startus interruptus should not be related, but hey, these beasts are Italian and who knows what design features are built in.

Currently lows 30s here with much more to come today and the next week. Summer eh? If you don't get up and at em early, you stew in your own juices.

Reminds me of when I used to road race - lined up on the starting grid at Oran Park, bitumen melting, full leathers and we had to wait for the ambulance to return to the track after an earlier incident. Couldn't get off the bike as it didn't have a stand of any sort. Eventually someone had the bright idea of going back to the pits to sit in the shade until the ambulance came back. Can't remember the race, brain was fried - didn't die though, that's for sure!
 
Good info on the oil pressure switch. And glad ya didn't fry OZ:whew:.
 
Peaked at 40.7! About to ride home and it's dropped to 39.5 - love this cool weather...
 
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