Odd issue on my DL1000 (fueling?) - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 22 Old 07-10-2019, 07:40 PM Thread Starter
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Smile Odd issue on my DL1000 (fueling?)

I'm on a road trip with Salt Lake City being one of the destination. Bike has been running brilliantly.

Later in the day today it started acting like it was out of gas or had bad gas. It was bogging down as the throttle opened and power usually resumed when I backed off the throttle, no warning lights. I stopped at a Chevron station and put in 2.85 gallons of 91. It started up fine and I had about a 20 mile run to my destination, mainly in the interstate and it ran fine with no repeat issues so far.

More detailed story:

Last night, at the end of the day I filled up my tank at a Shell station (using the top octane they have 91) before packing it in for the day. It was coolish compared to the rest of the day, I think down into the lower 60's. Google says the altitude there is 6,749 feet. Google says Salt Lake City's elevation is 4.226 feet.


I wanted to be in Salt Lake City in the mid afternoon today so did a nice relaxing ride down highway 150 into the mountains and then did another road up into the mountains. I think both times got me up over 10,000 feet. When I came out if the mountains it got a lot hotter. My thermometer was showing temperatures into the low 90's, I think it was into the low 50's or maybe upper 40's at altitude. After I left the are and reached the outskirts of Salt Lake City I stopped at a Wendy"s for a bite. I parked the in the sun. When I left there it ran fine for a bit and then bogged a bit. It did the several times and usually after letting off the throttle or turning off the ignition it ran fine. I think it also stalled once or twice when I pulled in the clutch lever. After it was filled the issues did not return.

Other things that might be relevant:

-I have not checked battery terminals yet but it doesn't sound electrical in nature

-my sidestand has been lettting my bike lean way more than it should. I need to do something about that but hopefully it works until I get home.

- bike has 113,817 miles / 183,170 km

I'm thinking it has been something to do with the bike getting very hot when parked building pressure in the tank causing issues (I didn't hear any sound of pressure escaping but helmet and earplugs were on.). I leave here Friday noonish and won't have a chance to look at the bike until then.

Thoughts?

..Tom
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2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 185,000+ km, 115,000 miles.

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post #2 of 22 Old 07-10-2019, 07:43 PM
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Sounds like the classic symptoms off a clogged HP fuel filter...

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post #3 of 22 Old 07-10-2019, 07:55 PM Thread Starter
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Quote:
Originally Posted by STCorndog View Post
Sounds like the classic symptoms off a clogged HP fuel filter...
I thought so although it didn't return after refueling and it happened quickly after the stop.

..Tom

2006 DL650: 202,000 km 125,500 miles, Sold
2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 185,000+ km, 115,000 miles.

This can help preventing from cars pulling out in front of you (SMIDSY)
SMIDSY detailed report.


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post #4 of 22 Old 07-10-2019, 08:37 PM
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Might it be a clogged charcoal canister for the fuel vent system? I've seen cars get fuel starvation due to the tank drawing into a vacuum as the fuel level decreases. This could be compounded by an atmospheric pressure change too.

Maybe try popping the fuel cap next time it happens and listen for it sharply drawing air in as the seal breaks.

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post #5 of 22 Old 07-10-2019, 08:46 PM
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I think you would be the first I read about with a partially plugged fuel filter on a V2.

OR maybe the pump itself is getting weak. Sounds like more fuel head pressure (full tank) = more fuel flow?
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post #6 of 22 Old 07-10-2019, 09:58 PM
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Quote:
Originally Posted by V-Tom View Post
I thought so although it didn't return after refueling and it happened quickly after the stop.

..Tom
Good point Tom. Typically when the filter is clogged the symptoms should be persistent. You can always do what I do when something intermittent pops up, keep riding until the problem persists.
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post #7 of 22 Old 07-10-2019, 10:27 PM Thread Starter
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Quote:
Originally Posted by vTwinDino View Post
Might it be a clogged charcoal canister for the fuel vent system? I've seen cars get fuel starvation due to the tank drawing into a vacuum as the fuel level decreases. This could be compounded by an atmospheric pressure change too.

Maybe try popping the fuel cap next time it happens and listen for it sharply drawing air in as the seal breaks.

Sent from my Pixel 2 XL using Tapatalk
Now that you mention it there was something like what you were describing on first gen DL1000's (or was it DL650's?), I think with California emissions. Sitting in the sun they would get too much pressure build up and caused issues. Don't really recall what the issues were though.

The scenario around my issue sounds similar though.

..Tom

2006 DL650: 202,000 km 125,500 miles, Sold
2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 185,000+ km, 115,000 miles.

This can help preventing from cars pulling out in front of you (SMIDSY)
SMIDSY detailed report.


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post #8 of 22 Old 07-10-2019, 10:36 PM Thread Starter
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Quote:
Originally Posted by blaustrom View Post
I think you would be the first I read about with a partially plugged fuel filter on a V2.

OR maybe the pump itself is getting weak. Sounds like more fuel head pressure (full tank) = more fuel flow?
A failing pump could cause the issues but why would it seem to be fine after refueling? I was thinking the pressure difference between were I filled last night and today couldn't be that much. The ambient temperature increase, the sun's heating the tank and the engine heat would all tend to increase the pressure in the tank. Bogging on increasing throttle would normally point to a less gas but could the emissions system cause more gas to get into the intake? (does a Canadian DL1000 have a charcoal canister?)

..Tom

2006 DL650: 202,000 km 125,500 miles, Sold
2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 185,000+ km, 115,000 miles.

This can help preventing from cars pulling out in front of you (SMIDSY)
SMIDSY detailed report.


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post #9 of 22 Old 07-10-2019, 11:00 PM
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Higher octane gas burns slower ... at those elevations I would run with the lowest octane available. Just a thought.

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post #10 of 22 Old 07-10-2019, 11:11 PM
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Quote:
Originally Posted by V-Tom View Post
A failing pump could cause the issues but why would it seem to be fine after refueling? I was thinking the pressure difference between were I filled last night and today couldn't be that much. The ambient temperature increase, the sun's heating the tank and the engine heat would all tend to increase the pressure in the tank. Bogging on increasing throttle would normally point to a less gas but could the emissions system cause more gas to get into the intake? (does a Canadian DL1000 have a charcoal canister?)

..Tom
If it has you would have a large cylinder under your rear seat. Have you?
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