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General Category => General Discussion => Topic started by: Huzo on February 20, 2026, 01:57:50 PM
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I have pondered a particular feature of my Norge, which has developed over the last couple of years.
If I leave the bike for 3 or more days, it cranks a bit too long before it fires up (about 6 seconds or so) and when it does fire, it idles perfectly.
After running for as little as 5 seconds, I can shut it off and then hit the starter again and it fires immediately.
It is not a battery issue, because I have left it on a charger overnight to test that theory and it makes no difference.
The TB’s are well balanced and TPS is at 4.6.
The CO trim is at 6.
It really is a function of how long it has sat since the last start but again, if I leave it 5 days and it is slow to fire up, 3 seconds running and it will then re start immediately.
I have a new fuel pump and filter going in, as I wonder if it is a bit slow to bring the fuel pressure up.
Some injector cleaner could be advantageous as well. I have been away for a week, so I will shoot a video upon my return.
I have an apparatus to re set the sacred screw, but I need a set of unmolested TB’s to calibrate the manometer first.
Any ideas ?
Oh BTW..
If y’all are wondering why I need to reset the sacred screw, these are a set of almost new ones that have been molested.
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That's what happens to old bikes, how many miles? Just be lucky it runs, still.
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I have pondered a particular feature of my Norge, which has developed over the last couple of years.
If I leave the bike for 3 or more days, it cranks a bit too long before it fires up (about 6 seconds or so) and when it does fire, it idles perfectly.
After running for as little as 5 seconds, I can shut it off and then hit the starter again and it fires immediately.
It is not a battery issue, because I have left it on a charger overnight to test that theory and it makes no difference.
The TB’s are well balanced and TPS is at 4.6.
The CO trim is at 6.
It really is a function of how long it has sat since the last start but again, if I leave it 5 days and it is slow to fire up, 3 seconds running and it will then re start immediately.
I have a new fuel pump and filter going in, as I wonder if it is a bit slow to bring the fuel pressure up.
Some injector cleaner could be advantageous as well. I have been away for a week, so I will shoot a video upon my return.
I have an apparatus to re set the sacred screw, but I need a set of unmolested TB’s to calibrate the manometer first.
Any ideas ?
Oh BTW..
If y’all are wondering why I need to reset the sacred screw, these are a set of almost new ones that have been molested.
Huzo, I think its a fuel pressure issue. As the bike sits, pressure bleeds back into the tank (though could be injectors). It takes a few moments for the pressure to rise. This happens on most of my FI vehicles. I will cycle the key on once or twice to let the initial run of the pump repressurize the system. You can hear it change after the 2nd or 3rd. ALways fires up without issue when I do this.