My wife's bone stock Kawasaki 1987 650 SX seized last year after the original oil injection line broke. Only one piston seized, and it was a light seize (I almost just sanded the piston and freed the rings). I rebuilt the top end, but it won't run right? It starts and seems to have power for the first 300 yards then looses power to the point that at full throttle it will only reach 1/3 throttle RPM's. The ski was working great before it seized.
I have checked the following:
-The compression is 135 each cylinder.
-It has new plugs (B7ES).
-Took carb apart and all is well.
-Verified plug wires are making good contact.
-Verified there are no exhaust leaks.
-Getting good water flow.
-Verified fuel pump is working.
-Crank felt normal when replacing pistons.
-Crank case drain is sealed
I have not checked the following:
-Reeds
-crank seals
-Timing/stator
So my question is, could the reeds and/or crank seals have been damaged when it seized? Would bad reeds or crank seal cause it to run the way I described?
What do you suggest I check?
Thanks!
I have checked the following:
-The compression is 135 each cylinder.
-It has new plugs (B7ES).
-Took carb apart and all is well.
-Verified plug wires are making good contact.
-Verified there are no exhaust leaks.
-Getting good water flow.
-Verified fuel pump is working.
-Crank felt normal when replacing pistons.
-Crank case drain is sealed
I have not checked the following:
-Reeds
-crank seals
-Timing/stator
So my question is, could the reeds and/or crank seals have been damaged when it seized? Would bad reeds or crank seal cause it to run the way I described?
What do you suggest I check?
Thanks!
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