Fuel Pump Issues - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 16 Old 02-15-2011, 11:12 AM Thread Starter
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Fuel Pump Issues

We have a bike that runs normally in "normal" (non-dragstrip) accelleration in all gears until you get to 5-6th at 60-65 mph. Then it just bogs down and won't go any faster. In lower gears it will bog down when you try to give it a lot of gas to pass. When you back off the throttle it runs fine all the way to 60-65mph unless you really twist the throttle.

We switched to a spare bike and sent the "bogger" to the only dealer on the island. I am unsure about their diagnostic skilz.

I got a call today and was told it's the fuel pump, a new one needed, they have none. It'll cost almost $500 to get one here, but *most* internal parts are available.

Before I spend big bucks on the whole assembly, I'm curious if anyone has had a similar problem and found what the cause was so I can maybe direct the techs working on it. I'd much rather replace a single defective part that the entire assembly.

BTW, I don't have the bike here, it's 90mi. away in Santo Domingo.

Any suggestions?

TIA

ST from MotoCaribe.com

Last edited by Scootertrash in Paradise; 02-15-2011 at 12:29 PM.
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post #2 of 16 Old 02-15-2011, 11:25 AM
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Did they already try cleaning the strainer?
Or maybe it's just the filter that is clogged up and resulting in low flow? Not that this is much help as the filter assy is $250 street prices anyway
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post #3 of 16 Old 02-15-2011, 02:12 PM
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The usual problem is a clogged high pressure filter. IIRC, you have 2007 or later DL650s. They can't use the external filter bypass other models can use. There is a fuel flow check procedure at Fuel flow check but it really sounds like the fuel pump is definitely the problem. External Fuel Filter modification shows the internals of both pump types. The strainer or low pressure filter part number is 15420-05H00 and the regulator containing the high pressure filter is 15610-27G00. They are $30 and $100 respectively in a USA fiche at MRCycles.com and the high pressure filter is the usual suspect.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
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post #4 of 16 Old 02-15-2011, 03:05 PM Thread Starter
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Quote:
Originally Posted by greywolf View Post
The usual problem is a clogged high pressure filter. IIRC, you have 2007 or later DL650s. They can't use the external filter bypass other models can use. There is a fuel flow check procedure at Fuel flow check but it really sounds like the fuel pump is definitely the problem. External Fuel Filter modification shows the internals of both pump types. The strainer or low pressure filter part number is 15420-05H00 and the regulator containing the high pressure filter is 15610-27G00. They are $30 and $100 respectively in a USA fiche at MRCycles.com and the high pressure filter is the usual suspect.
Great info, GW, I suspect you're right. Not sure I want to do any mods.

Do you know if it's possible to clean the HP filter or is replacement the fix?
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post #5 of 16 Old 02-15-2011, 03:06 PM
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Replacing the HP filter seems to be the way to go.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

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post #6 of 16 Old 03-01-2011, 02:21 PM
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My 2006 DL650 currently has just past 90,000 miles on it. Late last summer I noticed a bit of a flat spot as the revs climbed. I think it was around 8,000 rpm. In fall the pump got noisy.

This gradually got worse.

Yesterday I did the fuel filter bypass operation and took my bike out for a late night ride just before midnight (low 20's out.) The flat spot is gone, the noise is gone and the bike feels more alive.

..Tom

2006 DL650: 202,000 km 125,500 miles, Sold
2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 195,000+ km, 121,000 miles.

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post #7 of 16 Old 03-01-2011, 05:54 PM
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Quote:
Originally Posted by V-Tom View Post
Yesterday I did the fuel filter bypass operation and took my bike out for a late night ride just before midnight (low 20's out.) The flat spot is gone, the noise is gone and the bike feels more alive.

..Tom
Good information Tom. I wish I go do the HP bypass!

2007 DL-650 (I gave away in 2012 with 111,000 + miles)
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post #8 of 16 Old 03-01-2011, 06:04 PM
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So this is the filter from my Vee taken last summer. And no that is not mud puddle water, thats the result of back flushing the filter two or three times ( tray was perfectly clean before I started)
Bike had just under 70,000 km at that point.
One ride north to Inuvik NWT about 8500 km and the other to southern Utah about 8000 km.
On return from Utah I noticed the fuel pump was starting to sound quite noisy. .
Might have been that nice gas station in Eagle Alaska I guess I'll never know for sure.
North of Whitehorse you seem to have a choice of regular gas or regular gas at most stations.
Did the fuel flow test. 110 ml in three cycles of the key, not good, should be around 350-400 ml.
My suspicion is it got contaminated on the ride north.
Each tank of fuel seemed to change the feel/vibration of the bike a bit.
It always ran and started well, just felt slightly rougher at times when at highway speed.
Was not noticeable on the ride south. The other Vee rider on the ride south has had no fuel filter issues.
Did the external fuel filter mod. last fall and now have a quiet pump again.
I am impressed that the filter allowed me another 8000 km before it became noticeable.

Bernie 05-DL-1K
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post #9 of 16 Old 03-01-2011, 06:20 PM
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Quote:
Originally Posted by Black Lab View Post
Good information Tom. I wish I go do the HP bypass!
Evidently not possible on 07 or later DL650.

..Tom

2006 DL650: 202,000 km 125,500 miles, Sold
2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 195,000+ km, 121,000 miles.

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


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post #10 of 16 Old 03-05-2011, 08:04 PM
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Same problem for me on DL650 K7

I have the same problem as motocaribe. In my case it started like a year ago, it suddelny got better, then after 6 months it started again and now I changed fuel pump filter and did some injector cleaning and got better. Now it started again, Iīm travelling south america and started in Venezuela, there I changed again fuel pump filter and got better, but only for a couple of days, then it got worse in Brazil so that I couldnīt go beyond 40-50 MPH, here in Suzuki dealer they made some modification for the type of gasoline here (it has some ethanol in it, donīt know in which percentage). It worked well for some 700 miles, but now the problem is again there. Iīm suspecting that is the HP filter as Greywolf said, I looked for part 15610-27G00 on Motorcycle Parts|ATV Parts|Honda|Kawasaki|Polaris|Suzuki|Yamaha|Dealer| Wholesale Discount Prices but I didnīt find it, maybe it has another code, can you please clarify this to me?.

Anyway, Iīll keep on like these, hopefully the motor is not getting to damaged.

Regards

[COLOR="Navy"][B]Gus-Strom[/B][/COLOR]

[I][COLOR="Sienna"]por los caminos del sur...[/COLOR][/I]
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