Question about BMW Motorcycles

1 Answer

F650 misfire Bike started misfiring when taking off after long ride. Now bike starts to misfire even when going 100KPH have ordered iridium plugs, plug caps and rectifier. Are these things my problem as it must be electrical. Any suggestions?

Posted by Anonymous on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • BMW Expert
  • 303 Answers

A lot of carbon build up inside the cylinder can cause this. Try running seafoam through the engine.

Posted on Feb 02, 2015

Ad

6 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
DickCanFixIt
  • 948 Answers

SOURCE: engine misfire and cutting out when running at normal engine temp

Make sure your fuel tank vent is not plugged. To see if this is the problem, the next time the bike starts acting up, stop and open the fuel tank. If you hear a whoosh of air being sucked in you know your vent is plugged.

The C8HA is still available, it is NGK stock number 2168.
Good luck.

Posted on Feb 20, 2009

  • 3567 Answers

SOURCE: dt 125lc 1987 back misfires and does not pick up on acceleration

I am going to have you do a series of things to clear up the problem. First come the basics >

Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new STOCK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Don't be cheap, use a lot of cleaner. Spray into all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean and dry the air filter and install the carb. Let the float bowl fill then start the engine. Set the idle speed with the idle screw. This process should get you back on the road unless other problems exist.
Let's say that the bike is no better >

  • How good is your battery?
  • Carb, head, intake manifold and carb mounted tight?
  • Does the carb intake manifold have reeds? What condition are they in?
  • Remove the flywheel cover. Take hold of the flywheel and, without turning the wheel, lift the flywheel up and down then left and right. Any movement or was the flywheel rock solid? If movement then the crank bearings need replaced along with the crank seals.
  • Speaking of crank seals, how old are your seals? The bike ain't gonna run with bad seals.
  • I don't recall for sure, does the bike have CDI? If so, have the dealer test the CDI and the coil.
  • If no CDI, when was the last time the points and condenser were replaced or points filed and set? Get the coil checked.
  • How old are the piston and rings? You could have problems there. What shape is the cylinder wall in? Scared up, low spots (you will not see the low spots without running a cylinder hone through the bore).

There isn't much more to do. You just rebuilt the engine.
Please rate this solution. Thanks!

Posted on Apr 02, 2009

  • 3 Answers

SOURCE: misfiring at speed on gilera 200 scooter

This sounds more like a lean fuel condition than ignition. If it was stored over the winter without the gas being drained or a fuel stabilizer being added, you'll likely have varnish build-up in the fuel system that is not allowing sufficient fuel flow.  If your engine is fuel injected, it's likely your injector is partially clogged.  If it's carbureted, your carb jets may be partially clogged or your carb float may be sticking and not allowing the needle valve to fully open.  Fill the gas tank with fresh gasoline, but leave enough room for a can of Sea Foam.  The Sea Foam may be able to break up the deposits and allow fuel to flow again.  However, there's no guarantee and the fuel system may have to be disassembled to be cleaned.

Posted on May 05, 2009

  • 234 Answers

SOURCE: engine misfire and cutting out when running at normal engine temp

has this model got a conenser if so i would try changing that, sorry 2006 model

Posted on Jun 05, 2009

  • 221 Answers

SOURCE: Bike does not start after an hour of riding.

test stator loaded and unloaded,then do voltage drop test

Posted on Aug 13, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

When I start my bike "Enfield bullet 1976 model" I dont notice any problem but while moving it, it misfires and and even brings me to a halt.when i start again it wont start immediately.


The more older a vehicle gets the more attention it requires. Go to a reputed me hanic and clean up the carburettor airfilter and spark plugs as these three are the main components which help in the start stop and running of fhe bike also misfiring occurs mostly due to unclean carburettor newly fitted airfilter or if engine is running rich.

Jan 04, 2016 | Motorcycles

3 Answers

My pulsar 220 dts-i is not speeding.


It's an engine safety mechanism, to shut down the engine when rpm goes beyond 10K.Even you are travelling at 140Kmps rpm won't reach 10K in normal case.Probably you have to change vacuum piston kit to resolve the issue completely.

Dec 09, 2012 | 2011 Bajaj Pulsar 220 F

1 Answer

Fuel light came on,tank nearly empty,started bike up next morning and idles ok but badly misfires when try to accelerate,filled tank up with mobil 98 octane which i have used before and it still misfires...


Chances are condensation has collected in the carb float bowl. Drain the carb. Yes, keep the tank filled. This will lessen condensation. You may want to install a new spark plug as well.

Jun 15, 2011 | 2005 Aprilia SR 50 Ditech

2 Answers

Misfiring 2007 Honda VFR 800


I would say that your bike may be running a little lean. I usually replace the jets on all my bikes as soon as I get them as the emissions requirements mandate that the manufacturers pass stringent emissions tests prior to the dealer selling them. Some bikes wont even idle or run, especially off road bikes from places like California. and in these cases you must re jet it is a must! I even throw away or drill larger holes into my air cleaner cover.

Good Luck!
Geodesygold

Sep 22, 2009 | Honda VFR 800 Motorcycles

3 Answers

2001 Roadking Engine Misfire.


wrong plugs possibly installed, use standard range plugs i use NGK#8 and a lower octane for awhile see if that clears it up.

Sep 07, 2009 | 2003 Honda VTR 1000 F Firestorm

1 Answer

Engine misfire and cutting out when running at normal engine temp


has this model got a conenser if so i would try changing that, sorry 2006 model

Jun 01, 2009 | 2006 Enfield Bullet 350

2 Answers

Engine misfire and cutting out when running at normal engine temp


Make sure your fuel tank vent is not plugged. To see if this is the problem, the next time the bike starts acting up, stop and open the fuel tank. If you hear a whoosh of air being sucked in you know your vent is plugged.

The C8HA is still available, it is NGK stock number 2168.
Good luck.

Feb 18, 2009 | kawasaki ZZR 250 Motorcycles

2 Answers

Misfires


The sound and the high fuel consumption are all related. there are many things that might be wrong. it could be the fuel quality the carburettor air filter spark plug or even an elecrtical problem. but since you had the bike serviced but you are still experiencing problems i would try cleaning the spark plug. and when you fit the sparklug back, check wheter the wire going to the sparkplug is in perfect order. then put the bike in neutral, put in on the main stand, start it and check the big wire going to the sparkplug. listen if you can detect any noise in that area. if you hear a tik - tik sound, then there is a elecrtical leak. you should be able to repair that by yourself if not a normal service station would do. however if thats not the problem, then you should bring the bike to another service station,,,

Nov 10, 2008 | 2003 Hartford Legion HD-125L

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

172 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4521 Answers

yadayada
yadayada

Level 3 Expert

76070 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

Loading...