Working on a Kawasaki mule 1000 450b1 only has spark on one cylinder, plug and plug wire check okay

Mike Butler

• 6674 Answers
• Posted on Jan 25, 2009

SOURCE: Weak Spark on #1 Cylinder

I'm getting real suspicious of EGR valve fault. For now, pull vacuum line off valve, and see if there is vacuum at idle, plus see if engine straightens out, when line off, idle wise.

SOURCE: Bogging while heavy accelration.

vacuum advance working ? do manuel check with cap and rotor button off and see if it's moving. chris

SOURCE: 96 Honda Shadow 1100c V-Twin

is this the one that kick in at a higher rpm to burn more gasses while running at speed? is it not running as it should, are you having an issue other than it doesnt do what you thought it should.No spark in rear cylinder or just on the one plug out of the two? If all is checking out as you said its got to spark.trade the coil thats on one with that other one see if the trouble is the same or moved with the coil to its new location.coil may work but not be good enough to run.

SOURCE: Took my car to have check engine light checked. It

In modern cars so much can go wrong to indicate an issue and a computer in the car can get confused as to what is really occurring. In most cars a misfire indicates either an incorrect firing order, shorted wires, bad plugs, or bad coil. Since you have replaced the wires and plugs we can rule those out. Im also assuming after the second engine code you pulled #2 plug and made sure it wasnt fouled with oil, was gapped correctly, and reinserted. To produce a sufficient spark for combustion the alternator sends power to a "Coil" which is in reality a storage point that then sends an amplified electrical current down the spark plug wire to the cylinder to fire the plug. If the car is truly misfiring you will notice a rough idle, fluctuating RPM's, and lack of acceleration. If you are experiencing any of these I would look at replacing the coil. If you arent experiencing any of these I would have the code cleared again and complete one drive cycle 100 miles and then have codes read again. If you still get a Misfire error some other causes known to occur with Rio's are fuel filter issues, gas caps, and fuel injector issues. Although rare, these can cause issues with the cars fuel delivery and emissions which can confuse the sensor in the ECU. I would try injector cleaner, replace the fuel filter, and gas cap . If funds are an issue then based on symptoms I would start with injector cleaner first $3, Filter $12, Gas cap $12, Coil $48 to $200+

SOURCE: kawasaki mule turns over but wont start, plenty of

kaf1000 mule has spark fuel compression wont start