Question about Parks Optical 13.5hp Briggs And Stratton Intek Lawn Mower Engine

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Brand new 13.5 intek ,fuelat carby spark at plug turnsover but will not start . What does electric connection to nbottom of carby control.

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SOURCE: I am replacing my old B&S 12.5hp with a new

yes, see if it runs
is it a ride on
it may have a sensor under the seat which is a kill switch

Posted on Dec 24, 2010

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Why is my Briggs and Stratton Intek 12.5 hp missing out and low power?


This points straight at a bad plug or bad magneto/coil. Change the plug and if that doesn't fix it then you will need a new coil. Plugs are only a couple of $ so do that 1st. Just because it has spark doesn't mean it will run, the spark needs to be nice and strong, it should give a 'crack' when it jumps the gap on the plug. Other problem could be bad/dirty fuel or clogged carby. Make sure your fuel is fresh, and flush the tank too by removing it and 'swishing' some fuel around and tipping it out. If it's the carby, take it to a specialist as they are fidly little things!

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1 Answer

2000 Mercury 40 HP outboard motor will not start, how do I trouble, for electircal and fuel problem, where would I get troubleshooting instructions? Thank you


right, Fiirst establish what is wrong.
1, is there fuel? check the spark plugs after trying to start, they should be slightly wet and smells of fuel.

2. is there spark? take out a spark plug leaving attached to wire and earth ( use a rubber handled tool or you might get a shock)the plug where it is meant to be screwed into the motor, look for a bright blue spark.

It is from here you will track down your problem.
If no fuel.....check all fuel lines then filter then fuel pump then carby bulb on bottom of carby this is the reservoir that has a float that moves a pin to stop and let in fuel in as it rises and falls. clean everything as you go. take off whole carby and soak overnight in a carby cleaner product. if you locate a prob as you go it might solve your problem but while you are at it you may as well service it at the same time. Get new gaskets or make your own from gasket paper or use gasket glues. put it all back together this should only take 30min to do as long as you have right tools. excluding soaking time.

If no spark, this is harder to diagnose as there are more fiddly parts, volt meter volt meter volt meter.......everything! check wires everywhere for loose connections, electric start? cdi unit small black box? wires coming from flywheel ,these send a charge to battery when motor is going and a charge to spark plugs via coils or cdi.

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1 Answer

16hp B&S ohv runs for 30min under load then stops 5min cool off starts runs 30 min new coil plug gas is venting adj valves


could be fuel vaporising.... re rout the fuel line away from heat sources this may help or the fuel is not getting to the carby fast enough....check fuel filter and lines for cleanness .

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1 Answer

Cannot get my bike to start


Remove rubber connection from carby inlet (between carby and air filter) enough to get a piece of thin card to cover inlet to carby. Turn motor over with throttle half open for a few seconds. Remove card and see if any fuel is on the card. If there is, repeat process (fresh card) without throttle, fuel should still appear. If there is no fuel present, you have a fuel blockage. If engine still not starting with fuel present, you have an electrical problem, check for spark by resting attached plug to engine metal and turning engine over.

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1964 honda C100 cub 50cc step through not starting


Please check the power of Electricity being passed from your ht coil to the plug or change the cdi your air breather pipe must of been locked pls check

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If it is brand new, sounds like you should return it for the retailer to have repaired.

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Brand new Pope Spitfire 40 lawnmower won't start


Caren,
Drain the fuel completely if it is older than 1 week. Make sure you undo the bolt at the bottom of the fuel bowl to ensure all old fuel is drained. Refill with fresh fuel (premium unleaded) and try again. If it still does not work then remove the spark plug and rest it on the metal of the mower while still attached to the silicone ignition wire. Have someone hold the cut out bar to the handle (as you normally would to run the motor) and pull the cord. You should see sparks being emitted from the spark plug. (Make sure there is no fuel nearby) If you cannot see any sparks then replace the spark plug with a new one and repeat this process. If you still cannot see any sparks being emitted after attatching the new plug to the silicone wire, resting it on the metal of the mower, and pulling the cord to start it as you normally would, the mower will need to have the resistor and capacitor checked by a professional repairer as no spark is being generated.

Good luck.

Allan

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