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Fuel Pump Damper & Maintenance
- Thread starter zoridog
- Start date
If you regularly ride the bike and don't let it sit 'til the fuel goes bad, they should last a very long time.
BUT, you need to inspect it periodically (I'd recommend once or twice a year to be safe). If, when you rub it with your finger, it feels like it's going soft (softer than a tire) or black comes off on your fingers, it's time to replace it.
BUT, you need to inspect it periodically (I'd recommend once or twice a year to be safe). If, when you rub it with your finger, it feels like it's going soft (softer than a tire) or black comes off on your fingers, it's time to replace it.
Hi,
98lee is correct. If it feels softer than a tire, replace it. But be sitting down when the price is quoted! And realize there are 2 fuel pumps - the older one is 52mm in diameter (Bosch) and the newer is 43mm in diameter (Siemens, I think). The rubber dampers are different. Either pump will work in the bike; just make sure you order the correct damper for the pump you have!
98lee is correct. If it feels softer than a tire, replace it. But be sitting down when the price is quoted! And realize there are 2 fuel pumps - the older one is 52mm in diameter (Bosch) and the newer is 43mm in diameter (Siemens, I think). The rubber dampers are different. Either pump will work in the bike; just make sure you order the correct damper for the pump you have!
I think the newer ones were made by VDO.
tinytrains
Still plays with trains.
I replaced mine after 21 years of regular riding. I was having fuel pump wiring problems, and when I pulled the pump, I noticed the mount was slowly disintegrating.
It was time.
Scott
It was time.
Scott
sinclairniu
New member
Would anyone explain what is gas damper and where is it located? What looks like?
It surrounds the fuel pump and isolates the pump from it's mount in the gas tank.
Or - http://www.beemerboneyard.com/fupufupuki.html - a little less expensive. They also have a complete kit of all the fuel pump intank components for about $200 less than the same parts from the mothership.
Last edited:
sinclairniu
New member
Thank you very much, its so clear with the picture.
