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Ski Doctor
Ski Doctor, powersports repair specialist
Category: Motorcycle
Satisfied Customers: 818
Experience:  over a decade of double time experience, excellent electrical and mechanical diagnosis capabilties
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Ihave a kawasaki mule that wont start

Customer Question

Ihave a kawasaki mule that wont start
Submitted: 8 years ago.
Category: Motorcycle
Expert:  Ski Doctor replied 8 years ago.

your engine needs 3 things to start and run:gas, ignition spark, and compression. at this point you have verified spark, and you know there is fuel in the float bowl of the carb. so the next step to check would be the compression. this engine has a simple adjustment system, which is called screw and locknut. you will not need to order or change any valve lash shims, but you will need the right procedure to measure the clearance.

but first, lets try a few things:

1:open the intake duct that leads to the carb. as you crank over the engine, spray some aerosol starting fluid, like starting fluid or carb cleaner, and see if the engine starts. if it does, then you know you have a fuel delivery problem. if the engine does not start, then we go to the next step

2:we need to know if there is enough engine compression to ignite the air/fuel mixture in the engine. so you need a compression tester, and a friend to crank the unit over while you hold the gauge. make sure the throttle is held wide open, so you get the best results. if your compression is low, you will need to adjust the valves to see if that is the problem. if the valves are in spec, then there is an engine failure, causing the compression to be too low, wither a bent valve or siezed piston ring. i have seen the push rod fall of the rocker arm in these units a lot, which is a problem they seem to have. so if your compression is low or none, that would be checked along with the valve clearance.

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Customer: replied 8 years ago.
Where the air intake on this unit is,it is upside down so spraying iinto the carb. is very hard and when you take it off nothing holds the carb on intake manifoldhave tried starting fluid with the air filter piece off and it would not start have removed the spark plug sprayed starting fluid in replaced and I still get nothing will try useing part of fuel hoseto spray into carb any suggestions and how much do I tighten down the spark plug.
Customer: replied 8 years ago.
I took off the air intake and made a bracket out of tubing to hold the carb on tried starting fluid still nothing (I am still leary about over tighting the spark plug.) but I just dont get it. it started affter two years of sitting and now nothing. I see spark when I ground the plug .could it not have enough spark to ignite te gas
Expert:  Ski Doctor replied 8 years ago.


what you need to do next is check compression. you might be able to use tools from an auto zone or auto parts store where they allow you to rent tools. you need to check engine compression, and see if that is why it wont start. remember to hold the throttle open when you check this so you get accurate results.