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Lx176 has spark but won't start, keeps back firing through the carburettor

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You have a aliminum shear key in the flywheel.pull your flywheel and replace that key and it will run

Posted on Sep 05, 2009

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Suffolk Punch 35s not starting


carburetor have a setting level for its fuel , check the floating control adjust fuel level , also check spark plug current is there,just by rotating engine and keeping spark plug out of cylinder , just keeping it with engine body.

Apr 12, 2014 | Garden

1 Answer

Troubleshoot my engine


First remove one or more spark plug and check if they fire during cranking ( Replace therefore the plug in the plug cap and place the metallic side of the plug against the engine-block and crank.)
If NO spark check:
- Deadman knob-is the puller installed?
- Unplug the wiring to remote-control and check spark with manual start. If you have sparks: Problem with contact key/remote control circuit ( check for worn cable, bad RPM counter )
Still no sparks: Check CDI-box
If the plugs are WET: dry them with air, or better replace them!

If you have sparks: Check if fuel come to the carbs. Therefore, unscrew the drain plug ofan upper carburettor at the side of the cowls.
If there is fuel, check after cranking if the plugs are 'wet'. If they're dry: clean the carburettors

If plugs were wet: Empty all the carb cowls ( drain plug ), remove the fuel line ( pince it with pliers if no quick connector ). Crank the engine while carbs are full open throttle for 15 seconds.
Set everything back ( plugs, fuel line, drain plugs, spark plug caps ) and give it a try...

Aug 23, 2013 | Seloc Marine Repair Manual...

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Tecumseh TVT691 not getting spark in one cylinder


Did you check for spark of assume that since the spark plug was not dirty that it is not firing. I am leaning toward water in the gas since you have to keep the choke on and it is blowing white smoke. You may want to drain the fuel tank and carburator and put in fresh gas. Good luck!

Dec 30, 2011 | Garden

1 Answer

Blower won't start.it's getting a good spark


Whilst I cannot offer a definite solution to this problem, it is worth disassembling the carburettor looking for dark brown material that collects if you don't drain the fuel tank after each use. I have started running all of my petrol engines dry to avoid this problem of fuel evaporating leaving coagulated oil in the carburettor as a membrane. You won't damage a good motor by doing this since as you should have lubrication for the piston rings right up until the agonal stroke.

Sep 05, 2011 | Homelite Mighty Lite Blowervac

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Will not start has 60 psi compression plug firing has gas model 50 new coil good spark plug


When I have a problem starting a saw this is what I do.
  • Remove the spark plug and pour 5 ml (one teaspoonful) of fuel into the opening
  • Dip the end of the sparkplug in fuel so the spark gap is wet
  • Replace the sparkplug and try to start the saw
The fuel that you poured in should ignite and may be enough to cause the saw to start. You may need to repeat the operation 2 or 3 times. Do not be tempted to put in too much feul as it will only flood the saw.

If the saw was left away with fuel in the carburettor for a few months the fuel may have formed a gel in the jets of the carburettor. If the above method doesn't solve the problem you'll need to have a mechanic strip down the carburettor and clean the jets.

Jan 10, 2011 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

After starting the JD LX176(which starts right up) gas leeks out of the hose under the air filter. This has just happened after sitting for the winter. The gas was replaced with fresh fuel.


I dont know what type of engine you have, but you must remove the carburettor and dismantle it . The problem could be with the fuel inlet needle valve which could be dirty and sticking or it might be the float. Wash the carb. with a clean brush and fuel. Sometimes the float becomes perforated and fills with fuel and weighs it down, so the carb. will overflow. Try this, it`s the best i can do. Stephen.

May 07, 2010 | Garden

3 Answers

My tdm 850 has just started to miss and back fire and am having trouble getting it started now it has not been on the road since october and was fine then i was just getting it back ready for the spring...


was it laid up with fuel in the tank if so after four months the fuel is almost definately stale drain the tank also drain the oil & replace the oil filter clean the air filter & fit new spark plugs these simple steps should see you back on the road enjoying the spring & summer all the best

Feb 26, 2010 | 1998 Yamaha TDM 850

1 Answer

Wont start keeps back firing working fine then went to take out next day and key turns it tries all that happens is it puffs out of exsort and wont go


2 possible problems:
a) Jets in carburettor are clogged. Clean out the carburettor and jets thourougly. Write down the settings of air and idle screws first to dismantle ( count the turns to full lock up the screws. DONT apply much force ).
DONT scratch jets with an iron wire or something like that, use only Carburettor cleaner!
b) Ignition timing is wrong. Here, 2 possibilities:
Sparkplug is dirty or worn, replace it.
Key in flyweel is broken. Remove the flywheel, check the key...

Hope this helps you in the right direction for your solution...

Aug 29, 2009 | Gilera Runner VX 125 Motorcycles

1 Answer

Motorcycle wont start


If cranking is slow it could be a sign of a 'near to dead' battery.
When cranking on its battery there is a too low voltage and weak or no sparking.
When jump starting or pushing the bike, there is a good spark and the engines fires up.

Check also the spark plugs! And carburettors cleaniness

Mar 08, 2009 | 1997 Suzuki GSX-R 750 V

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