Author Topic: Fuel Pressure Gauge  (Read 5349 times)

Offline castaway12000

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Fuel Pressure Gauge
« on: June 14, 2017, 04:53:53 PM »
Just looking for advice as to where to place a fuel pressure gauge?  Pictures always help! 

Thank you in advance!   
  • California
  • 1985 k100

Offline Laitch

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Re: Fuel Pressure Gauge
« Reply #1 on: June 14, 2017, 07:00:23 PM »
Just looking for advice as to where to place a fuel pressure gauge?
Keep it in its original box or a sturdy, padded container of some kind.

It's difficult to know what your intention is by what you've written but if it is to check the fuel delivery pressure, here's a document you can scroll through and eventually find text and a beautiful color photo concerning the matter. It's from the Repair Guidance Master List section.
http://hrsbstaff.ednet.ns.ca/bvogel/K100/download/bike-wont-start1.htm
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline K1300S

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Re: Fuel Pressure Gauge
« Reply #2 on: June 14, 2017, 08:55:54 PM »
Just looking for advice as to where to place a fuel pressure gauge?  Pictures always help! 

Thank you in advance!   

any chain auto parts store.
or any major on line supplier.  summit racing, jegs, etc.

they are a common test tool.

Project Thread "K75s Midlife Refresh"
http://www.motobrick.com/index.php/topic,7810.0.html

Offline castaway12000

  • Motobrick Curious
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Re: Fuel Pressure Gauge
« Reply #3 on: June 15, 2017, 12:21:44 PM »
I was looking for location on bike to install - I plan on installing inline and leaving it on.   I think down stream of regulator would give me a better idea of how pump and regulator are performing. 
  • California
  • 1985 k100

Offline K1300S

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Re: Fuel Pressure Gauge
« Reply #4 on: June 15, 2017, 12:46:42 PM »
down stream of regulator will give you a very low  and variable reading.  downstream is just dumping the extra pressure back to the tank.  wrong place for measuring.

need to measure between pump and rail, or rail and regulator.  will give same reading.  only takes a minute to install when needed.

no reason to leave it in the system. only need to diagnose an issue.  rest of the time pressure is constant.
Project Thread "K75s Midlife Refresh"
http://www.motobrick.com/index.php/topic,7810.0.html

Offline castaway12000

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Re: Fuel Pressure Gauge
« Reply #5 on: June 15, 2017, 06:52:05 PM »
Would leaving it in place give me a "condition monitoring"


Basically keeping an eye on pump ao I can replace it before it fails?


Like if I see pressure starting to drop over time?   


Bike sat for 16 years and I didn't mess with the fuel system inside the tank.  Everything works good now it would like a way to monitor the system.
  • California
  • 1985 k100

Offline Laitch

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Re: Fuel Pressure Gauge
« Reply #6 on: June 15, 2017, 07:10:07 PM »
Would leaving it in place give me a "condition monitoring"
Basically keeping an eye on pump ao I can replace it before it fails?
When a pump fails, failure is usually caused by faulty electrical connection or seizing of the pump. It's usually not a slow decline but rather intermittent or outright failure. Monitoring it is an obsession not worthy of nursing. Keeping the tank and fuel lines clean and the electrical connections clean and tight throughout the bike is worthwhile work.

If you haven't checked your bike's valve clearances and done a throttle body balance, consider putting your energy in that direction. I didn't notice that in the history of your bike's maintenance.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline castaway12000

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  • Posts: 29
Re: Fuel Pressure Gauge
« Reply #7 on: June 16, 2017, 01:57:50 AM »
Thank you!   I have been rolling that around that I should do that
  • California
  • 1985 k100

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