BMW K bikes (Bricks)

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1Back to top Go down    Fuel Pump and engine run problem on Tue Sep 11, 2018 12:28 am

Snapthor

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my fuel pump keep running without stopping cause engine flood. I 'm able to start my k100 for a min. or so and thenwent off. I assuming that this cause by fuel pump relay malfunction or the pump itself. Any suggestion or tips on how to solve this issue?

Remarks: would be nice if anybody can show me what fuel pump relay model and picture ?

    

2Back to top Go down    Re: Fuel Pump and engine run problem on Tue Sep 25, 2018 9:34 am

Laitch

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You need to tell us about your moto, Snapthor. What is its year of manufacture and what model is it? How long have you owned it. How many miles are on the odometer? How many miles have you ridden it? Has it ever run well since you have owned it?

Click on the Profile tab when you are logged in and then your moto's year and model in the bike* box—like the rider in the example below has done—so it will show up along with every post you make.


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1995 K75T 68,000 miles
    

3Back to top Go down    Re: Fuel Pump and engine run problem on Tue Sep 25, 2018 12:40 pm

Point-Seven-five

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The pump is supposed to run as long as the engine is running.  Do you mean it keeps running after you shut the engine off? 

If the engine is flooding when it's running, you may have a faulty temperature sensor or the pressure regulator is not controlling the pressure correctly. 

If it floods because the pump keeps running, you may have a problem with the wiring or the fuel pump relay.


__________________________________________________
Present:
1994 K75RT
1994 K75S
1992 K100RS

Past:
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

4Back to top Go down    Re: Fuel Pump and engine run problem on Thu Sep 27, 2018 4:25 am

Snapthor

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@Laitch wrote:You need to tell us about your moto, Snapthor. What is its year of manufacture and what model is it? How long have you owned it. How many miles are on the odometer? How many miles have you ridden it? Has it ever run well since you have owned it?

Click on the Profile tab when you are logged in and then your moto's year and model in the bike* box—like the rider in the example below has done—so it will show up along with every post you make.
Thanks , i add it in.  I happened to find the problem. And it was wrong relay wiring which i used a normal relay produced locally and not by BMW or made in Germany.  It looks similar but the power diagram is different. so it cause by fuel pump to run once i turn switch on without starting the engine.

    

5Back to top Go down    Re: Fuel Pump and engine run problem on Thu Sep 27, 2018 4:26 am

Snapthor

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@Point-Seven-five wrote:The pump is supposed to run as long as the engine is running.  Do you mean it keeps running after you shut the engine off? 

If the engine is flooding when it's running, you may have a faulty temperature sensor or the pressure regulator is not controlling the pressure correctly. 

If it floods because the pump keeps running, you may have a problem with the wiring or the fuel pump relay.
Thanks , i was the wring relay wiring.

    

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