02 R1150R stalling

[mviolet]

Friends:

I have an 02 R1150R. Live in Ohio USA.

Over the past 2 years the bike has stalled out once or twice a season. Diagnosis was using inferior gas and not an additive like Startron. Seems to be a belief among mechanics that the ethanol in the gas attracts water, causing the injectors to foul the spark and stall the engine. Bike won't restart unless I let it sit a long time as it seems to flood when I try to restart it.

Same thing happened earlier this week. Put in Shell gas a a ton of Startron. Bike started and ran 5 min. Restarted bike and ran it 5 min. Next day started it twice, it ran, took it to the corner to top off the tank. Restarted bike after filling it and within 10 sec it stalled and I had to push it home [1 mi on a hot humid day].

Tried starting it a few times today and is won't stay running. Can't get it into a mechanic for 2 weeks. He's guessing it might be the pressure regulator, which looks like a total assache to replace.

I am not the most confident mechanic, but I have taken the tank off, wheels, done brakes, routine fluid changes. Any ideas?

Thanks in advance.

[mviolet]

Also, put in new fuel filter earlier this year, and fuel pump energizes properly.

[kirby]

4360

[mviolet]

Mike...thanks for the tips. I have never done a pressure check but I am willing to give it a try. I had some work done earlier this year on the bike and I believe they checked the injectors at that time.

Sheepishly, I must admit that I started pulling things apart to go after the obvious stuff and found a filthy K&N filter in the airbox. I kept the old paper one to use while the K&N dries when I clean it. Lo and behold, the bike started and ran for 5 min. Just did the same thing this morning. Not saying it's fixed until I road test it...but could it be as simple as that? Never had a vehicle perform poorly solely because of a dirty air filter.

Mark

[kirby]

1710

[opposedtwin]

Had a similar problem with my 02 R1150R. Finally after much failed troubleshooting diagnosis I accidently found what the problem was. While trying to figure out another problem (ABS lights) I had removed and replaced my fuel tank several times and one of the plastic fuel disconnect had broken but over a period of time enough fuel would trickle through (maybe via the other connection) and the bike would sometimes crank and run a few minutes, quit and not restart. To be sure that was my problem I removed the quick disconnect and put a solid copper pipe in its place and the bike has started and run properly for nearly a year now. Now, if only I can figure how to fix my ABS problem, lol.

[mviolet]

ya, those plastic quick releases are poo...same on my Benz and they always break at the wrong time. I replaced a male end with the metal ones but should have done all of them. Using a piece of copper tubing...genius. Thanks.