Question about 1993 BMW K 1

2 Answers

Poping What would cause a bmw k1 to pop a lot? It is a lot like small backfires. Air filter is fine, fuel is fresh (if that makes a difference), plugs are good and I get a pretty blue spark when I take the plugs out. Timing?

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Have you replaced the muffler or the exhaust system? This will cause it to backfire thru the rear pipe due to opening up the breathing. If not, it may be caused due to one of the injectors staying open slightly and causing fuel to leak into he combustion chamber & firing when it is not suppose to, on the exhaust cycle. This will not hurt anything just noisy.

Posted on Apr 11, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 291 Answers

Does this happen when closing the throttle? Under hard accelleration? All the time? Could be 'decelleration popping' as they jetted bikes pretty lean back then. It is common. Honda XL's and XR's came with a wire mesh screen in the airfilter to keep sparks from this lighting the airfilter on fire. If it only happens with closed or partly closed throttle, it is no big deal.

Posted on Nov 20, 2008


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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

My 2005 x5 diesel BMW miss fires when I accerate and looses power at 100kph I have replaced fuel and air filters and run 3tanks of injector cleaner what could be the problem ?

I am leaning toward a fuel problem. Loss of mid-range power, misses or pops, and backfires are indicators of not having enough fuel. I am guessing some of your injectors are still not fully functioning.

Jan 28, 2018 | BMW Cars & Trucks

1 Answer

I have a 1973 harley davidson sportster xlh 1000 with drag pipes i just bought it, but it ran great it sat for 3 months now it pops and backfires and is have a oily mist from the air cleaner and i dont...

popping and backfiring sounds like a lean fuel mixture, caused by the wonderful gas we are getting these days. try draining fuel system, put in fresh fuel. the oily substance is coming from the crankcase vents located within the air filter cavity, a lot of bikes do that, ck. oil level not over full.

Mar 31, 2013 | 1979 Harley Davidson XLH 1000 Sportster

1 Answer

Need fuel filter part number and/or aftermarket brand

There are so many different things that can make the bike do that. The fuel pump could be going out(VERY COMMON) or you could have a dirty AIR FILTER causing the restriction. if the fuel filter was the problem you would more than likely have some backfiring or popping coming from the engine. Need more info to diagnose it. However if you want any parts - Harley Davidson and American sportbikes are a few of the only places to get em.

Dec 06, 2012 | 2000 Buell X1 lightning

1 Answer

Drained old gas put in new new now its poping from exhust

Crackling and backfire is nearly always lean on fuel condition...
open your air fuel mix screw tiny amount at a time and test to see if helping this should clear up the popping..
Please note if you need to open the air fuel mix screw more than 3 full turns from fully closed then the easiest solution is leave the air fuel screw at 2 turns out from closed and increase the size of your pilot jet by one or two sizes.. they very cheap to buy few dollars each.
I would suggest if your only popping and crackling a little then small adjustment on the air fuel mix screw will cure it for sure
Being YZ I find an occasional pop or backfire when de acelorating is exactly how they should be if you don't get a pop or crackle every now and again then chances are it running to rich.
but if it is regular occurance then definitely needs fine tuning or larger pilot jet installed
good luck regards Jamie

Sep 09, 2011 | 2003 Yamaha YZ 450 F

1 Answer

Popping and backfires when decellerating

The primary cause for backfiring on deceleration is an air leak - if the baffles have been removed or modified or if the gaskets in the exhaust tract are not sealing properly, fresh air can be introduced into the exhaust stream causing a pop or backfire. Check your exhaust system - especially if you have recently had an oil change, since the pipe has to be removed to change the oil filter on this model.

Jun 22, 2011 | 2005 Yamaha V Star 1100 Silverado

1 Answer

My 02 FLHRI was running fine when I parked it for a couple hours. When I tried to start it, it ran for a min. started coughing and popping then shut down. It would not restart just pop and backfire. Could...

Before I went to the expense of doing a fuel pump I would empty the gas tank and change the gas filter and put in fresh gas. Water or dirt in your lines can cause this problem.

Jun 06, 2011 | 2000 Harley Davidson FLHR-FLHRI Road king

1 Answer

Bandit k4 will idle but not rev out, pops and back fires

Pops and backfire on deceleration would normally point toward lean on fuel has it got after market exhaust or air filter ? these both will cause it to want/need more fuel
may need to fine tune fuel air mix

May 22, 2011 | Suzuki XP 65 R Motorcycles

1 Answer

My 97 gsxr 750 susiki is now poping and back firing what would cause this

Backfiring can occur from many things. First thing I would do is have the timing checked. If the timing hasn't been checked in a while and you ride regularly, it may just be that time. If the timing is fine, you may be running either rich or lean. If you are running lean, it could be from a semi-clogged fuel filter. If the fuel filter is fine, you might just have too much air in comparison to the amount of fuel being delivered. In that case it isn't a serious problem. If it bothers you though, you could install a digital fuel modulator to increase the amount of fuel that is delivered.

Another problem may reside with the intake valves

Apr 07, 2010 | 1996 Suzuki GSX-R 750 T

2 Answers

1994 camaro 3.4 v6. backfiring and poping through intake.

I had the same problem, thinking it was bad gas, or bad wires, or even a clogged fuel filter, had the engine checked out by a reputable gear head. A head bolt broke, then a intake lobe from cylinder #4 spun round thus causing your car to constantly backfire, also check to see if your head gaskets aren't blown (water-n-oil), all these were found once the engine was disassembled. Good luck trying to find a good used 3.4

Mar 22, 2009 | 1995 Chevrolet Camaro

Not finding what you are looking for?
1993 BMW K 1 Logo

Related Topics:

307 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Arnie Burke
Arnie Burke

Level 3 Expert

5055 Answers

Mike Gilbreath

Level 1 Expert

50 Answers


Level 3 Expert

81400 Answers

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

Answer questions

Manuals & User Guides