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You either have a bad switch, a hot wire short feeding unwanted juice to the ignition system, or the pistons and cylinder head need to be de-carboned. Hot spots of carbon are continuing to ignite the gas even without a spark. Be sure the spark plugs are correct > NGK CR9E or use NGK C9E. Too hot a plug, ( i.e. cr7e ), will make the engine run at a higher temp. Please rate my answer. Thanks.
32 to 1 is the standard mix. That is 4 ounces two stroke ENGINE oil per gallon. The brand doesn't really matter. Don't use MOTOR oil in the gas. The stock plug is NGK brand, R6918B-9. I would suggest a hotter plug, R7376-8. The last digit is the heat range. The lower the number, the hotter the plug.
Consult the owners manual if available for your model yer if possible, but NGK CR7HS sounds about right, I do not suggest getting motorcycle parts at an autoparts store, This is one time where one should always go to the dealer. Don't know where you are located, if its unusually warm or cold weather the dealer might suggest a slightly colder or hotter heat range on the spark plug. Always gap and torque your plugs to facotry specs!
My personal experience is the NGK plugs work best in Kawasaki motorcycles. Tried others and always go back.
I don't recall needing to remove the valve covers. The spark plug wires go from the coil into a 1" diameter insulator tube / spark plug cap. The tube protects the wire from the engine heat. Remove the tube / cap then remove the plug. The stock plug is NGK CR7E. For the tank, after cleaning, get a liquid tank liner and rust will never be an issue again. Google“ kreem fuel tank liner “or go towww.http://www.4secondsflat.com/Fuel_Tank_Sealer.html FYI > Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx
only a handful will work with the motorcycle engine you own. Also different brands (NGK, Bosch, DENSO, Champion, Esc) will work better on different types of engines.
As a general rule of thumb, use the sparkplug your manufacturer recommends for your motorcycle (same brand and part number). Unfortunately some spark plugs are very specific to a type of engine and make only for that engine such as the NGK ME8 for $34 per sparkplug, compared to the normal price of $3 per sparkplug.
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