[?]Looking for some info on compression testing for my sled. She is an 1994 Polaris Rxl 650 triple EFI Done a couple of test today and it look bad --First one was 65-100-70. After wash the readings were 65-100-85. Any info on proper readings.
Pull all 3 plugs and ground them out (if you don't you could kill your CDI). Wrap some string/wire/whatever around your throttle so it's pinned to the handlebar (wide open). Make sure your key is off and your kill switch is down. Thread the compression tester into the first plug hole and pull 5 times. Record that reading. Move onto the next plug hole. Same 5 pulls. Record the reading. Same for the final hole.
You want something around 125 psi (or more) and no more than a 10% difference between your highest and lowest recorded reading.
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