Question about 1988 BMW K 100

1 Answer

Hi, I have a 1988 BMW K100RT. It's been sitting in the shed unstarted for 12 months. Today I dumped the old fuel and put half a tank of fresh fuel in, installed a brand new battery, oil filter and engine oil, the bike tried to start very strong and was cranking well, although does not start. I checked the plugs and spark is getting to all plugs, the plug leads are in the correct firing order, and the plugs are getting wet from fuel. There is also a smell of fuel from the exhaust as it attempts to start which is a good sign. I'm thinking this has to be electrical or fuel issue, but all signs are pointing to electrics and fuel being fine?

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Removing all the old fuel is a good start, the tank is only one point, you also need to flush the old fuel out of the total system including the fuel rail and pipes, to ensure fresh fuel is first into the engine.

Posted on Aug 17, 2014

Ad

3 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 2712 Answers

SOURCE: fuel pump

Can you hear the pump when you turn the key on normally? When the pump on my old FJ starts up with the key, it makes enough racket to let you know. Your bike is alot smarter than mine, it might be able to tell that the lines are unhooked and preventing the pump from working as a safety thing. Is the fuel line made of or contain any metal? It may need to see continuity in the fuel system to allow the pump to operate. Or some other parameter is not being met with the lines disconnected. Have you tried thumbing the starter with the lines off? The bike might only pressurize the system when the engine is starting or running.... actually, this is my best guess now that I think of it.

Posted on Nov 20, 2008

  • 2 Answers

SOURCE: My 87 k100rt bmw left hand indicator switch doesnt work reliably

The switch may just need cleaning. Remove the switch unit from the handlebar and spray a good quality switch and contact cleaner into it. I had a similar problem with the indicator cancel switch. Do not use WD40. Get the switch cleaner from an electronics shop.

Posted on Apr 22, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a br 320 leaf blower I have spark but cannot get the engine to fire. What is my options to check next


The most common reason for this is old fuel. Dump out any old fuel in the tank. If you have left over fuel and it is over 2 months old. Do not use it. Mix up some fresh fuel and put that in the tank. There is still old fuel in the fuel in the fuel lines. Spray some starting fluid in the carb to make the engine run. This will pull the old fuel through the line and let the fresh fuel get to the engine. It should now run.

Nov 06, 2015 | Garden

1 Answer

How do i replace my fuel in my fuel tank


To get the fuel out take the cap off the tank and dump the old fuel into a empty gas can. Then mix up some fresh fuel using fresh gas and pore it into your fuel tank. Somewhere on the saw or in your owners manual the proper fuel and oil mix should be listed. Put the fresh fuel in the tank. There still may be some old fuel in the fuel lines so use some starting fluid so the old fuel is pulled through when you first start it.

Mar 03, 2015 | Garden

1 Answer

Trouble starting and running stihl 400 cutof saw


First clean or replace the air filter. If the fuel in the tank is more than 2 months old dump it out and put in fresh fuel. Clean or replace the spark plug.

Aug 31, 2014 | Stihl Saws

1 Answer

Mikita dcs6401 chainsaw wont start


How old is ths fuel in the tank? If it is older than 2 months dump it and put in fresh fuel. Use some starting fluid sprayed into the carb and see if it fires on that. It may take a few sprays to pull the old fuel through the lines till the fresh fuel gets to the carb.

Apr 18, 2014 | Garden

1 Answer

110cc suzki wont stay idling


Hi, Mark and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
13. Multi carburetors not in sync.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
DRZ 110 wont stay running
How to fix dirt bike that wont idle
Kawasaki KLX110 Service Manual
OEM parts for Suzuki
http://mybikemanuals.com/suzuki

Jun 12, 2017 | Suzuki Motorcycles

1 Answer

I have a k 100 rt, its been stood for 10 months, have charged the battery, the engin e spins but will not fire ?????


Hi, Jason if your bike has been sitting idle for months or years and you did not do any pre-storage maintenance I feel your pain it will probably have a dead battery and not want to start or if it starts it will idle and run poorly, here are the following steps necessary to complete in order to get your bike back to an acceptable running condition.
1. If your battery was 3 years or older when you last had the bike running you should replace it.
2. If you believe your battery might still be serviceable remove it from the bike and put it on a 1 or 2 amp trickle charger for 24 hours. If it is the old lead acid type with visible cells and acid levels fill each cell to the top line with distilled water and replace the caps, run the vent tube into a plastic or styrofoam cup, any cells that are cloudy/milky replace the battery.
3. After charging remove the leads and let the battery sit for a couple of hours then check the battery voltage with a volt meter, you should have 12.5 volts or better, any readings in the 11 volt range you need to do a proper load test on the battery and replace as necessary, any readings in the 10 volt range you have a dead cell and replace the battery.
4. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
5. Remove your air cleaner and clean and re-oil per Mfg. specifications.
6. Remove the carburetor, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
7. Remove fuel valve and filter disassemble and clean as necessary, remove fuel lines and replace with new ones.
8. Replace spark plug with a new one and check for spark.
For more information about your issue please visit the websites below. Good luck and have a nice day.
http://xlforum.net/vbportal/forums/archive/index.php/t-39135.html What to do When Your Motorcycle Won Start
http://www.carlsalter.com/download.asp?p=298
BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW
Bmw k100rt owners manual

Apr 28, 2011 | 1996 BMW K 1100 LT

2 Answers

Suzuki gn 125 lacking power


I assume you dumped out the half pint of old gas and rinsed out the tank. Get a new spark plug and clean the air filter. Remove the carb and dis-assemble it then soak the parts in denatured alcohol for 30 minutes. Do not soak the rubber diaphragm. Finish the cleaning with a can of spray carb cleaner from the auto parts store. Be sure all internal fuel and air circuits are clear and that the diaphragm is not torn or has pin holes. The top cap must have a good seal. Go to www.babbittsonline.com/parts/viewbybrand/parts.aspx to see a diagram of the carb and the rest of the bike. It looks like they have lots of parts for your bike.

Feb 09, 2010 | 1994 Suzuki GSX-R 600

1 Answer

Universal fuel pump versus genuine fuel pump for BMW K100RT


without changing out your fuelline I would not reccomend to go for a higher pressure and flow.
About the fuelpump....sometimes going for the cheap option is in the longrun more expensive.

Feb 27, 2009 | 1984 BMW K 100 RT

1 Answer

My 1999 Cadillac Escalade has been sitting for about a year and it wont start and the battery is new what do i do?


Hi!
From your brief description I presume you are able to crank the engine?
If all o.k. then I would be looking at fuel? if Petrol which I think possibly is maybe it has gone stale? You say 12 months if only a small amount of fuel in tank then you may get away with diluting the old with fresh, however it might not run too sweet until old fuel spent.
If Diesel possible Fuel filter change and check for Air locks.

Jan 07, 2009 | 1999 Cadillac Escalade

1 Answer

Fuel starvation


i have a 1985 k100rt and it would not start. i made some calls to bobs bmw in maryland and i unplugged electrical connector on gas tank ,sprayed it with electrical contact cleaner and coated it with dielectric gel. that fixed it. also check main grounding point on frame under gas tank.on a bike this old you need to make sure electrical connections are clean. the fuel pump is supposed to deliver fuel at 36 psi according to clymers repair manual. i hope this helped .

Nov 20, 2008 | 1988 BMW K 100 RT

Not finding what you are looking for?
1988 BMW K 100 Logo

Related Topics:

267 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers

Mike Gilbreath

Level 1 Expert

50 Answers

yadayada
yadayada

Level 3 Expert

76848 Answers

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

Answer questions

Manuals & User Guides

Loading...