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Cant start kx 100

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TabathaM:
hi everyone I got my first bike its a 2001 kx 100. guy said it needed top end re done. he bomb started it to show me it runs. brought it home, cant get it to start. took the plug out put my thumb over the hole, compression feels good. fresh fuel, coolant, oil, plug. only thing I didn't do is clean air filter. any body have similar issue. or should I just rebuild the top end for something to do.

sandblaster:
Hi Tabatha and welcome to the forum.
When you say he bomb started it do you mean that he push started it?

TabathaM:
ya he had to roll it down hill and throw it in gear to get it started.i tried on the biggest hill in the prairies but I couldn't get it to start.im just hoping there is a easy fix.....but its not looking like it.

Rollingmenace:
My guess is too low compression ... But could be carb and reed issues as well...

sandblaster:
Yeah... Once they start loosing compression they can become very hard to start.
Feeling the compression isn't good enough.
Get a compression gauge and check it.
If you don't have a compression gauge you can usually rent one at a auto parts store.
Bring your spark plug with you so they can make sure they have the correct size.

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