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#983139 - 03/26/17 11:49 PM G650GS Fuel Injectors Clogged - Advice?
Hank R1200RT Offline
Member

Registered: 10/06/14
Posts: 98
Loc: Agoura Hills, CA
So, my son's 2012 G650GS has sat for a few months and won't start. Battery is probably defunct, but the engine cranks over with a jump.

We took off some Tupperware and got to the throttle body. I poured a couple of teaspoons of gas into it and the bike ran for a couple of revolutions. As a result, My diagnosis was clogged fuel injectors.

I put some Techron and a gallon of gas in hoping it would reach the clogs in a day or two. Any other thoughts? We dd not plan on this scenario and did not drain the tank. Is there any product one can safely spray in the throttle body for this situation? Amy other advice?
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Hank Murphy
2013 BMW R1200RT "Gretchen am Spinnrade"

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#983149 - 03/27/17 05:36 AM Re: G650GS Fuel Injectors Clogged - Advice? [Re: Hank R1200RT]
dirtrider Offline
The Oracle
Member

Registered: 06/05/10
Posts: 12150
Loc: Ohio
Originally Posted By: Hank R1200RT
So, my son's 2012 G650GS has sat for a few months and won't start. Battery is probably defunct, but the engine cranks over with a jump.

We took off some Tupperware and got to the throttle body. I poured a couple of teaspoons of gas into it and the bike ran for a couple of revolutions. As a result, My diagnosis was clogged fuel injectors.

I put some Techron and a gallon of gas in hoping it would reach the clogs in a day or two. Any other thoughts? We dd not plan on this scenario and did not drain the tank. Is there any product one can safely spray in the throttle body for this situation? Amy other advice?



Morning Hank

Might be the fuel pump, the 650/700/800 had a rash of fuel pump failures that either froze the pump up or pumped metallic particles into the injectors. (can you hear the fuel pump run for a couple of seconds at first key-on)

Is fuel actually getting to the injectors?

Have you tried holding the throttle to about 1/4 throttle while cranking?
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D.R. ___
Sent from my rotory dial wall phone!

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#983226 - 03/27/17 05:44 PM Re: G650GS Fuel Injectors Clogged - Advice? [Re: dirtrider]
Hank R1200RT Offline
Member

Registered: 10/06/14
Posts: 98
Loc: Agoura Hills, CA
I discount the possibility of a fuel pump problem, as it was running fine, then not after a longish period of storage. But I will keep that in mind.

Did not get to the point of disconnecting fuel lines, etc. Maybe in a couple of weeks - will be out of town for a while.

I will try the 1/4 throttle thing RSN.

Thank you for the information.
_________________________
Hank Murphy
2013 BMW R1200RT "Gretchen am Spinnrade"

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#983231 - 03/27/17 06:58 PM Re: G650GS Fuel Injectors Clogged - Advice? [Re: Hank R1200RT]
dirtrider Offline
The Oracle
Member

Registered: 06/05/10
Posts: 12150
Loc: Ohio
Originally Posted By: Hank R1200RT
I discount the possibility of a fuel pump problem, as it was running fine, then not after a longish period of storage. But I will keep that in mind.

Did not get to the point of disconnecting fuel lines, etc. Maybe in a couple of weeks - will be out of town for a while.

I will try the 1/4 throttle thing RSN.

Thank you for the information.


Evening Hank

Easy test-- just listen for the pump to run for a coupe of seconds at key-on.

Just because it ran a while back doesn't mean the pump is still good now. BMW didn't anodize the alloy pump body so they can seize up just sitting there with ethanol fuel in them.
_________________________
D.R. ___
Sent from my rotory dial wall phone!

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