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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
LOW Engine Compression
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[QUOTE="jdbrusch, post: 677211, member: 25926"] Just curious what type compression tester do you have?,does it thread into the spark plug hole or do you just press a tapered rubber plug into the spark plug hole,the most accurate is the thread in type.Make sure the engine is up to temp and you kick the bike over several times while holding the throttle open as suggested by others already,1300 miles is extremely low on a 94 bike,if you suspect the rings and piston are worn take the top end apart and measure all the clearances or if you do not have the tools take them,with your shop manual to a engine shop and ask if they can do it for you.If its just the rings that are worn replace then,the stock piston is known to be a extremely durable unit,I got just over 9000km on my first piston and basicly took the top end apart each winter for kips cleaning and replacement of the rings.It sounds like the bike starts and run good. Another possibility is the rings maybe gummed up or stuck in the grooves and just need to be freed and cleaned. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
LOW Engine Compression
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