Question about Husqvarna SM 125 S Motorcycles

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Husqvarna sm 125 wont start keeps backfiring

Wont start keeps backfiring,

Posted by Anonymous on

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I would like to know how many horse powers a husqvarna sm 125 2006 open have

Posted on Mar 19, 2013

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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kel1guy2002

Kelly

  • 3740 Answers

SOURCE: backfiring

Check the chassis wiring whe it enters the side cover on the ignition side of the engine. There is supposed to be a rubber grommet there. Soetimes that grommet gets kicked loose where is comes out of the side cover hole and the wires chafe to the point that they ground out the ignition module.

Also looks for bare wires under the gas tank around the ignition coil module. Everything your describing points to a chassis short to ground.

Also the problem can be in the handle grip with the kill switch or a bad kill switch.

It is probably time to break out the Ohm meter and start chasing wires.

Kelly

Posted on May 04, 2010

FoRdMaStEr

Ernest Stalker

  • 53 Answers

SOURCE: 1997 yz 125 wont start, please help

2 stroke bike are very dependent on compression. and being a bike that is 12 years old my best educated guess is that the top end needs to be rebuilt. i usually have to have the top end done on my honda about every three years.

Posted on Jan 13, 2009

Anonymous

  • 16 Answers

SOURCE: help. my sons derbi send r 125 wont start. all

have you checked your air filter. If its dirty wash out with air filter cleaner or petrol and replace.

Posted on Feb 21, 2009

Anonymous

  • 207 Answers

SOURCE: it wont start and backfires

change your plug and adjust your air screw brass flat head screw nere the air filter boot screw right (in) gently then turn (left) out 3 quarters of a turn try that then go a quarter of a turn at a time out till you find your sweet spot

Posted on Jun 23, 2009

Anonymous

  • 12 Answers

SOURCE: my honda cbr 600 wont start and keeps backfireing

Check your plugs. If all four are sparking then your carbs are out of sync. They will need to be re-balanced.

If you are capabable in doing this job your self, you will need a screwdriver that fits your adjuster screws and a CarbTune Carb balancer.
Remove your tank and airbox.
You should see the flaps inside your carbs. These should open when you move your throttle.
Start on the outside carbs to get them balanced with the 2 centre ones.
To start, unscrew the adjusters all the way out. then screw them in until the 2 outer carbs move at the same time as the inner 2 carbs
Once this is done then adjust the centre balancer to syncronise the 2 left hand carbs to the 2 right hand carbs.
Now if you have done this correctly, all four carbs should open at the exact same time.
If you have a Carbtune balancer, remove the plugs from the top of your inlet manifold and plug in the hoses from the carbtune balancer.
Start the engine and adjust the screws until the weights inside the Carbtune balancer all read the same.
Once done, remove the balancer, replace the plugs into the inlet manifold, refit the airbox and tank and it should run so much better.

If your not 100% confident to unertake this job yourself, take the bike to your local dealer and ask to have the carbs balanced.

Posted on Mar 15, 2010

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2 Answers

Kawazaki kdx 125 wont start


KICK HARDER TRY PULL STARTING IT..IN SECOND GEAR..DOES IT HAVE ENOUGH COMPRESSION TO START?IT SHOULD START PULLING IT...START OFF WITH NO THROTTLE THAN IF NOT STARTING CRACK THE THROTTLE SO LIGHTLY AND SHE SHOULD FIRE OFF WHILE IN GEAR BEING PULLED OF COURSE BE CARE FUL NOT TO RUN INTO. WHO EVERS PULLING YOU..USE A LONG TOW ROPE..IF YOUR NOT A SEASONDED RIDER AND KNOW YOUR BIKE VERY WELL I WOULD NOT ATTEMPT THE PULL START...IF NOT CHECK YOUR COMPRESSION AND TIMING..MAJOR VACUUM LEAK MAYBE AT BASE GASKET..IS ENGINE SUCKING TO MUCH AIR? GOOD LUCK..

Mar 02, 2013 | kawasaki KDX 125 Motorcycles

1 Answer

What gearbox oil do i put in a husqvarna sm 125


SAE10 W40 semi or fully synthetic oil, both work the same. Originaly used by Husqvarna

Apr 29, 2012 | 2008 Husqvarna SM 125 S

1 Answer

Do husqvarna sm 125 wheels fit any 125 husqvarna


Depending if the ground clearance is the same then yes the wheels should fit another 125 bike, Like Many SM wheels are used on WR and WRE models.

Apr 30, 2010 | 2008 Husqvarna SM 125 S

1 Answer

My honda cbr 125 wont start. Battery okay


i think youneed to start the bike with a fully charged battery and the choke open with no throttle and keep turning it over till it stars failing that check the fuel hoses and vacum hoses to the carb

Jan 25, 2010 | 2004 Honda CBR 125 R

1 Answer

It wont start and backfires


change your plug and adjust your air screw brass flat head screw nere the air filter boot screw right (in) gently then turn (left) out 3 quarters of a turn try that then go a quarter of a turn at a time out till you find your sweet spot

Jun 23, 2009 | 2003 Suzuki RM 250

1 Answer

Help. my sons derbi send r 125 wont start. all


have you checked your air filter. If its dirty wash out with air filter cleaner or petrol and replace.

Feb 21, 2009 | 2006 Derbi Senda R 125 4T

1 Answer

Fuel capacity


10.20 litres (2.69 gallons)

Nov 10, 2008 | 2000 Husqvarna SM 125

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