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madtom316
11-16-2002, 11:17 PM
i have a 1987 250x and it needs new compression what do i need and how much will it cost thanks
11-17-2002, 10:02 AM
do u mean a new piston?
madtom316
11-17-2002, 10:06 AM
its a kick start and i can barely turn it over it is so hard to start so i get my friend who is alot heavier then me to start it. i waas told i need new comression i heard all i have to do is replace the piston rings wrist pin and gaskets is that all or do i have to replace more like the valves and stuff i dont know so i am askin thanks
danney f
11-18-2002, 02:53 AM
Do you know what is in the motor now? Is it a stock piston?
dhines
11-18-2002, 07:35 AM
Are you sure they didn't mean you needed a new "compression release." If the thing is as hard to kick as you say it is, then I'd say you have plenty of compression. I'd have the compression checked before you start buying a lot of new parts and tearing the motor apart.
madtom316
11-18-2002, 08:24 AM
sorry about this whole mess i was not exact on what i was talking about its easy to kick but it does just not want to turn over the motor is a 87 and never been touched i heard my friend say it had low compression is that it and how do i fix that?
joeroadking
11-18-2002, 08:56 AM
you have to first take a compression test but chances are if you never rebuilt it since new its time for a new piston and rings disasseble top end of motor and send the cylinder to be bored out and instal a new piston and rings, it is proubly not a bad time to have a valve job done as well. buy a service manual and a torque wrench before reassembly take your time, and your bike will run like new.