Article [13] ST1300 - Fuel Pump Replacement

dduelin

Tune my heart to sing Thy grace
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Is the mating surface of the lower tank to the tank access port still flat and in good shape? The rubber gasket should seal minor inperfections.
 

v8-7

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Yes, i had this problem . It was my own fault , as I pinched the wires between the flanges and it bent the flange on the lower tank quite easily .

I "fixed" it by using a bead of Permatex #2 ( non hardening form-a-gasket ).

Not the best way to fix it and i had purchased a replacement lower tank but never got around to putting it on the bike.
The bike got totaled some 10K miles later so I can't say how the durability would have been long term..
 
Joined
Jun 2, 2008
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59
Location
Missouri City (SW Houston), Texas
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2005 ST1300ABS
STOC #
7605
Yes, i had this problem . It was my own fault , as I pinched the wires between the flanges and it bent the flange on the lower tank quite easily .

I "fixed" it by using a bead of Permatex #2 ( non hardening form-a-gasket ).

Not the best way to fix it and i had purchased a replacement lower tank but never got around to putting it on the bike.
The bike got totaled some 10K miles later so I can't say how the durability would have been long term..


Thanks guys I think you solved it!!.

The top lip of the lower fuel tank was slightly bent downward in one spot. I very gently bent it back up using a small Crescent wrench and a machinist square then put the sub assembly back in with the new gasket. I loaded a gallon of gas into the upper tank and everything looks dry! I will keep a gallon in overnight and check for leaks in the morning. If there is any seepage I will use a small amount of Permatex 2 but I am keeping my fingers crossed.

I am not sure how I bent the lip, but I put the assembly in and took it out 4 or 5 times and could have easily caught a wire or something between the gasket and the lid.

By the way for future guys, the depressions was very slight and I could not see it...I had to feel for it with my fingers.
 

W0QNX

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Just an FYI for the thread. I bought the cheapest ebay kit I could find with the "Custom Parts High Quality" brand CSTP-382 HFP-382 pump in the kit. Nothing was used but the pump so it all worked great. I'd link the ebay seller but the item I bought for $18.78 is now shown as $118.78??? So if you want just buy the cheapest CSTP-382 HFP-382 pump you can find and reuse the stock parts.

My bike had 196,800 miles when the pump was replaced. My symptoms where like everyone else, lots of surging when riding the bike. The last ride was a ride home from a trip, 550 miles of the surging but it made it home.
 

W0QNX

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just an update, the pump has worked fine for over 3,000 miles. If you need a spare the ebay site is back at $18.

http://www.ebay.com/itm/161913159070

Edit, 9-29-18 added a current link some are using.

https://www.ebay.com/itm/Fuel-Pump-OEM-Replace-for-Honda-ST1300-2003-2010-and-2012-2013/162545660158?_trksid=p2485497.m4902.l9144

Condition:New
Brand:Keshen
Bundled Items:Gasket, Harness, Hose, Hose Clamp(s), Strainer
Manufacturer Part Number:KS02B
Warranty:Yes
Flow:140-160 Liters per Hour
UPC:683422225666
 
Last edited:
Joined
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West Michigan
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'98 ST1100
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8470
The one I got was the Denso 951-0004 Fuel Pump but not sure what it fits, I'm thinking a Honda Accord. I had to trim the inside of the plastic connector just a tad so it would connect but that was it.
FYI - Here is a link to a Rock Auto search for the pumps they offer for a 2000 Honda Accord 2.3L : LINK
 
Joined
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When I did mine, I ordered a new gasket and it leaked... I reused the old one with all the indentions from being installed and it didn't, I just cleaned it real good.
Seal All works great on the fuel tank / fuel pump assembly gasket. On my ST1100, several times I cleaned up the old gasket and smeared a little Seal All on the bottom of the old gasket and I haven't had a problem with the old gasket leaking.
 
Last edited:

thekaz

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Jul 29, 2014
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canadian west coast
THANKS to everyone who posted this kinda info ...... knowing the pump numbers made my escape from Fernley NV to be just a simple trip to the NAPA store :)
 
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Vancouver, British Columbia, Canada
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8562
I had two separate cases of my fuel pump acting up while at 2 bars on the gauge. Symptoms were cutting out/surging while moving, and it wouldn't idle. As soon as I filled the tank it ran perfect. My fuel mileage has also dropped roughly 5mpg since last season. I should admit that I'm one who tests the range of a tank of fuel on a regular basis...and I mean down to the last drop. Yes, I'm a fuel pump abuser. So tonight I ordered a pump from the same source sennister used. I'll update on the install and performance after install.
Exactly the same symptom I'm having when I get down to 2 bars and it starts cutting out. Happened twice.
Just ordered a pump:
www.highflowfuel.com has the correct pump for our ST1300 for $69.
 

skipcurt

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Woodstock, GA
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Not really having any issues with this at the moment but I'm considering doing this as precautionary since I've had some work done this year and I'm in the high 90k mileage. Just looking to get some blessings on the parts and their numbers. Looking to do in 2-3 weeks as I'll be heading out to NNESToc on Monday.
Fuel Pump
Gasket
Filter
Sealing Washer
 

W0QNX

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Joined
May 30, 2006
Messages
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Location
Pensacola, FL. USA
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06/ST1300 19/R1250RT
2024 Miles
007437
Just an FYI for the thread. I bought the cheapest ebay kit I could find with the "Custom Parts High Quality" brand CSTP-382 HFP-382 pump in the kit. Nothing was used but the pump so it all worked great. I'd link the ebay seller but the item I bought for $18.78 is now shown as $118.78??? So if you want just buy the cheapest CSTP-382 HFP-382 pump you can find and reuse the stock parts.

My bike had 196,800 miles when the pump was replaced. My symptoms where like everyone else, lots of surging when riding the bike. The last ride was a ride home from a trip, 550 miles of the surging but it made it home.
just an update, the pump has worked fine for over 3,000 miles. If you need a spare the ebay site is back at $18.

http://www.ebay.com/itm/161913159070

Edit, 9-29-18 added a current link some are using.

https://www.ebay.com/itm/Fuel-Pump-OEM-Replace-for-Honda-ST1300-2003-2010-and-2012-2013/162545660158?_trksid=p2485497.m4902.l9144

Condition:New
Brand:Keshen
Bundled Items:Gasket, Harness, Hose, Hose Clamp(s), Strainer
Manufacturer Part Number:KS02B
Warranty:Yes
Flow:140-160 Liters per Hour
UPC:683422225666
Well my second pump went out last Friday. This one was a lot different. It chugged as in "quit running" for 1/10 of a second twice as I rode down the Interstate at 75 gps indicated. I thought hmmm as it is the first problem I've had with the bike in a LONG time. And then 2 miles later I came up on a Semi and as usual I gave it a little gas to get around him and be done. Well it didn't go, It chugged hard if I gave it the gas at all and then died out but luckily I was just at an exit. So instead of passing I went right and got off the I-10 to check things out.

My first pump failure as quoted above got my bike to 196,800 miles and I remember it well that it bucked constantly for 550 miles home without me stopping along the road and I made it very roughly running home. Not so lucky this time. When I pulled off the I/S that was it. It died and would not restart when warm. I had just filled the tank 60 miles back so it had "cool fuel" but nope not gonna run. The second pump made it too 362,178 miles. 165,378 miles on (cheap) pump #2.

Black Pearl got it's third ride on a trailer back 60 miles home (thanks son in law) unloaded into the garage. The next day I replace the fuel pump with the quoted above $18 ebay fuel pump. I have 1181 miles on this cheap cheap pump and it's running as good as new. And I ordered another cheap spare to carry in the trunk for long trips. This one is for a Yamaha R1 so it should be enough PSI for my lowly ST1300. The old pump started the bike only twice after the first "time of death" and I tried it sitting on top of the bottom tank while it was all still hooked up. It sounded like sand being ground up inside the pump!


FYI, I only replace the pump. No other parts. Still the original filter and hoses. The pump replace is as simple as unplug the old and plug in the new. Same connections all around.

WARNING be careful around the sheetmetal edge of the lower tank when you pull the old pump assembly out. That edge is about as thin as a tin can edge and I'm thinking the seal comes from the super thick rubber gasket pushing the thin edge down and kind of into the rubber gasket. I stupidly got a small section of wire under the gasket and had a bad fuel leak when I filled the tank. I drained it back down, pulled the assembly and saw the bent tank tin edge. I straighten the tank tin edge back and gave it a bit more "up" after seeing the gasket design. No leaks now and still on the Honda factory gasket there too.

The new part has came already and this $21.49 delivered pump looks the same as the old. Pics of old (not Honda) and new R1 ebay pump.

B2E42110-617A-45E6-BCDC-5F5E67CCE7C6.jpeg

2186068F-20E5-40D8-9E11-737288619FA7.jpeg
 
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