Question about 2006 Honda Shadow Spirit 750
I have a 2006 Shadow Spirit with 20k miles. Last summer it started backfiring on deceleration. We went to go for a ride and when we went to leave the bike kinda lunged, popped into the exhausted and died. @
Hi, Richard if your carburetor or exhaust is:
COUGHING is usually caused by an air leak in the intake system and will generally have the same telltale signs, a wet or damp build up of oil/gas seepage at the intake manifold to cylinder head or carburetor to intake manifold connection and in rare instances a worn throttle plate shaft and or seals.
POPPING on deceleration is usually caused by a lean fuel condition or an air leak in the exhaust system and is generally located where black carbon soot is seen as a flashing build up from any joint connection. This condition can easily be remedied by removing and cleaning both joint pieces and reassembling with high temp silicone and torquing the exhaust clamp to the proper spec.
SPITTING is usually caused by a faulty accelerator pump and or nozzle, or the float bowl needle and seat leaking and overflowing through the main jet mixing well nozzle, or the air-fuel mixture screw is adjusted too lean.
BACKFIRING is usually caused by a sticky/tight intake valve or a timing issue, 180 degrees out or cam chain off 1or 2 teeth.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
backfiring popping on decel
Honda shadow exhaust leak backfiring fix
Honda VT750C2 Shadow Spirit Service Manual
Honda VT750C2 Owner Manual
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Posted on Mar 12, 2018
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Posted on Jan 02, 2017
Start with charging and load testing the battery. Then test the stator, to test the stator on the bottom of the right down tube is the plug that goes from the stator to the voltage regulator. With a multi meter, read the voltage from the stator, I forget the exact values but as you rev the motor the voltage should climb if it dosn't your stator is bad. If the stator is good take a reading again with the motor running at the battery cables, again I forget the exact value but you should have a steady reading at the battery, if it isn't and fluctuates it is bad.
Posted on May 07, 2009
open up the ignition cover plate and check the backing plate. it may have come loose and threw the bike out of time.
make sure your plug wires are plugged on tight and the coil wires are secure.
It is most definitely a timing problem.
Posted on Jun 06, 2009
Oil light does not mean that you don't have oil inside.It means that there is NO pressure in the oil circuit.You should check your oil pump and hope it did not ruin your engine from lack of oil underneath the pistons.Measure the compression too.
Posted on Jun 09, 2009
I guess you will have to reset the air-mixture screws of the carburator/s.
Not bad if you check the condition of the spark plugs...if its ..'Whitish' means lean i.e. less gas in, Brownish...means ok, 'Blackish'...means too much gas in .....'rich'
In your bike's case you may find it 'whitish'.
Hope this helps !
Posted on Jul 19, 2009
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