Question about Husqvarna SM 125 S Motorcycles
Wont start keeps backfiring,
Posted by Anonymous on
I would like to know how many horse powers a husqvarna sm 125 2006 open have
Posted on Mar 19, 2013
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
Posted on Jan 02, 2017
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.
Posted on May 04, 2010
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
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
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
Tips for a great answer:
Mar 02, 2013 | kawasaki KDX 125 Motorcycles
Apr 29, 2012 | 2008 Husqvarna SM 125 S
Mar 29, 2012 | 2007 Husqvarna SM 125 S
Nov 15, 2010 | 2008 Husqvarna SM 125 S
Apr 30, 2010 | 2008 Husqvarna SM 125 S
Apr 22, 2010 | 2007 Husqvarna SM 125 S
Jan 25, 2010 | 2004 Honda CBR 125 R
Jun 23, 2009 | 2003 Suzuki RM 250
Feb 21, 2009 | 2006 Derbi Senda R 125 4T
238 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: