XT 550 hard to kick

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BiganDaft

Race Dog
Joined
Nov 26, 2010
Messages
576
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Location
Edenvale
Bike
Triumph 900 Scrambler
Greetings to all the XT Gurus
I've got a XT 550 that is really hard to kick over.
0.25 oversize piston, valves cut, top end overhauled, timing triple checked.
with the spark plug out, the motor kicks over very easy.
Spark looks good.
However, with the plug in, the bike is almost impossible to kick over and is not starting.
Any suggestions of what to check?
???
 
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