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  Topic Review (Newest First)
Sep 22nd, 2013 11:10 pm
jzeiler
Re: Won't Idle - Gas Line?

Glad you tried that before tearing her all apart again and found the fix.
Sep 22nd, 2013 12:51 pm
howles
Re: Won't Idle - Gas Line?

Thanks, John.

Before acting on your guidance, I continued to search this site until I found this:

http://www.bmwlt.com/forums/showthre...nsor+connector

Same sort of symptoms except perhaps a different cause. This biker had disconnected the battery, I hadn't. But I hadn't ridden the bike in 5 weeks (shame on me) and didn't keep it on a trickle charge. I charged up the battery, disconnected it, reconnected is and did the procedure to reset the throttle position sensor.

Then - here's the best part - just went for a ride around the neighborhood five times, occasionally stopping to restart the motor.

By the time I pulled back into the garage, the bike was idling smoothly again.

As the other thread says, there's wisdom in the saying, JUST RIDE IT.

A few more tasks left before my maintenance adventure is complete: new front rotors, new front brake pads, rebuild/service the steering damper, change the oil.

It'll be nice to have a new bike again.
Sep 21st, 2013 2:59 pm
jzeiler
Re: Won't Idle - Gas Line?

If the bike runs fine otherwise but just will not idle I would not suspect fuel delivery as a cause. A serious air leak is more likely the culprit. May be a hose off on one of the throttle bodies. But I would go back and re-trace all the items that were done on the 60 K service to ensure that something wasn't left undone from that.
Sep 20th, 2013 8:43 pm
howles
Re: Won't Idle - Gas Line?

Thanks for the suggestions, all. Still at an impasse.


Here's what I know:

1. the fuel pump works. It runs when hooked to the always hot connector electrical connector nearby. There's no gas swirling in the tank with the pump running so that means the fuel line and connections in the tank connections are correct, right?. And the fuel filter is installed in the correct direction.

2. Reset the throttle position. Nada.

3. Double checked the Jiffy Tite (photo below) installation. I was concerned that the necks of these things are longer than the plastic disconnects they replace so wanted to be sure that the longer neck didn't pinch the curved hoses that go to the engine. Even if I hold the hoses to minimize the bend, after starting just fine and running well under an open throttle, the engine stalls and won't idle when the throttle is released.

I did notice that there is a break at the bottom flange of the neck where the fuel cap sits (photo attached). I may be just scratching for something to explain this idling problem but thought I'd ask: is this a problem?
Sep 20th, 2013 2:05 am
mwnahas
Re: Won't Idle - Gas Line?

add a quart of gas,
check fuel filter in right direction (its one way),
check fuel hose inside tank for cracks,
check connections to fuel filter they tend to pop off.
Sep 19th, 2013 10:07 pm
dfinazzo
Re: Won't Idle - Gas Line?

How about a picture of the Jiffy Tite fittings in place !!
Sep 19th, 2013 10:01 pm
gbob
Re: Won't Idle - Gas Line?

Ii would check for vacuum leaks , then if the battery has been disconnected the idle / throttle position will have been lost , try a throttle position reset .
1 turn ignition key on but not start
2 twist throttle from idle to full two times
3 turn key off
4 start

Bob G
Sep 19th, 2013 9:36 pm
howles
Re: Won't Idle - Gas Line?

There's very little gas in the fuel tank, not even enough to reach the bottom of the fuel filter.

When I look into the open tank with the engine on, I see only what I think is a normal amount of gas giggling due to the engine running. The engine runs fine with the throttle open but, again, as soon as I release the throttle,it dies.

I'd work on it tonight but it's too hot out there and the mosquitoes have had their fair share of me already.
Sep 19th, 2013 9:20 pm
andres
Re: Won't Idle - Gas Line?

If one of the hoses inside the fuel tank popped off the fuel system won't build pressure and I believe the pump won't shut off. You should hear it, but also look inside the tank to see if the gas is swirling around.
Sep 19th, 2013 8:57 pm
howles
Won't Idle - Gas Line?

Just turned the key for the first time after performing the 60,000 mile maintenance, my first ever.

The engine turned over and started but gas was spewing everywhere from the newly installed Jiffy Tites I put on. Tightened up the clamps, problem solved.

Started her up the second time and the engine ran, no problem. I revved it up and everything sounded fine. As soon as I released it, though, the engine died.

I'm thinking that if I didn't tighten the clamps sufficiently on the external gas lines, I may not have tightened them sufficiently on the internal lines when I changed the gas filter.

Is there anything else I ought to check before I remove the stingray, seat and gas tank to take a look? Is there an easier way to check than by removing stingray, seat and tank?

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