Question about 1984 BMW K 100 RT

1 Answer

84 k100rs runs poorly hard to start at times no power over 3000 rpm cuts out on road after 30 seconds running, some times hitting fuel tank brings it right for short time. have checked fuel pressure40 psi but did show signs of pulsation at times, dismantled pump looks good. occasionally goes perfectly but then will play up again without warning.have checked relays, and connections both inside a outside tank, tank connector not good but does not appear to be the problem.suspect it may be the fuel pump itself but not convinced.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 17 Answers

Problem could be throttle sensor situated on left side of bike below fuel tank, your symptons appear similar to mine of past. Cured mine by fitting new sensor.

Posted on Jul 30, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Truck starts fine idol fine interment cuts out loses speed an dies,wait 30 seconds starts right up drive for 25 miles does it again

Check the cap on the fuel tank as sometime they fail and wont let air back into the tank as fuel is used. The vehicle will run for a while hen cut out as a vacuum form in the tank After it has been stopped for while air leaks back into the tank it will start and run for a short time

Feb 28, 2016 | Cars & Trucks

1 Answer

Hyundai Tucson 2009 give P0193, change complete rail with sensors. Change High pressure pump, low pressure pump in the tank but still not starting. After holding the key in the start position for almo

A few things come to mind.
After a fuel failure like that it is possible you have fouled the plugs, causing a hard start, rough idle.
Also, if it was run any length of time in that state its possible the catalytic converter has become slightly clogged not allowing the rpm's to climb.
I would start with a quick check of the plugs.

Jan 13, 2015 | 2009 Hyundai Tucson

2 Answers

I can be driving down the road and My Honda just cuts off, it feels like it is running out of gas

More deatails are needed. how old is car, what other signs ar u having before car cuts off, sounds lik starving for fuel or water in gas, what have you tried that may be quicker

Sep 01, 2014 | Cars & Trucks

1 Answer

1993 isuzu bighorn diesel engine holds revs to 3000 rpm for about 30 seconds and then dies

Do you think the primary fuel filter under the tank could be blocked or water is in the fuel?

Mar 25, 2014 | 1993 Isuzu Trooper

2 Answers

Car stalled out and died. Cranks, but wont start all of the sudden.

On an incline that you stopped on, dont under estimate that if your low on fuel it may not be picked up by the fuel pump, or your fuel pump may have went out. If you run low on fuel often or up & down hill on low fuel will cause your fuel pump to burn out premature, they even say not to run less than a qrtr tank to be safe, but todays cost in fuel usually people wait till the last minute (gallon) which puts a strain on the fuel pump as the gas cools the motor and incline and decline in roads will mimic a low tank. What doesnt make sence is you sprayed starting fluid which should have fired for a few seconds, which brings you to spark issues, check you coil pack plugs and wires, most likely coil pack over plug and wires should still fire even if a plug or wire goes bad, but the coil pack controls the power going to the wire then plugs.

Jun 11, 2013 | 2004 Nissan XTerra

1 Answer

Driving on the road the RPM goes higher wituout speedind

Check out related help links to troubleshoot these problem:----Click the link below:---Idles Fine but RPM jumps in drive mode?
---------Mitsubishi Lancer rpm needle bounces?
--------How to adjust rpm on 2009 dodge charger SRT8?
Engine cuts out at 3000 RPM?


Cold start problem and vehicle shudder around 2500 to 3500 rpms

High rpm in neutral? Inconsistant high RPM in neutral?

Jetski Sputters and Low RPM?

Fuel Injection Problem And RPM suddenly increases

2005 Toyota Highlander: Engine runs hard RPM below 3000?

1987 Toyota Camry: RPM Drops going Up hills?

Cruise Control stops working, Excessive cranks to start the engine and RPM goes max 2500

1990 Toyota 4Runner: Engine cuts off when reaches 2000 RPM?

1999 Toyota Camry: Erratic stalling and high engine RPM at idle?

1995 Toyota LS: Misfire at idle or low RPM

Lexus RX: Tapping noise under Valve Cover At Low RPM?

These will help.

Nov 22, 2012 | 2008 Toyota Avalon

2 Answers

I will be driving down the road about 65 mph and all of a sudden my truck will just sputter and then have hardly any power with rpm needle jumping from 1000 to 1500...cannot go over 30 mph. If i stop and...

Sounds like a fuel problem. I'd start by changing the fuel filter and running a can of Sea Foam Engine Treatment through the engine. With at least half a tank of gas dump half the Sea Foam in the gas tank and the other half in the crank case.
If this doesn't fix it check the fuel pump, don't just decide to change it or have it changed they can be rather expensive (depending on engine and model).
If the fuel pumps checks good and it's still happening you'll have to start looking into distributor or timing chain problems (usually not intermittent).

Jun 19, 2010 | 2004 Chevrolet TrailBlazer

2 Answers

Long crank time, misfire for first 30 seconds after start, clears up runs good down road,sometimes keying up a few times before starting helps 2001 jeep cherokee 4.0

Hello ,your fuel pump is losing its prime and running back into the tank.Two things could be wrong either a bad fuel pressure regulator or the fuel pump itself:)

Aug 30, 2009 | 2001 Jeep Cherokee

Not finding what you are looking for?
1984 BMW K 100 RT Logo

Related Topics:

219 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers


Level 3 Expert

75117 Answers

phil cuzins
phil cuzins

Level 2 Expert

79 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides