valves - ex

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04-25-2004, 10:51 PM

orky4969

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valves - ex

i read that the KFX has 4 valves... how many does the 2002 400ex's have?

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04-25-2004, 11:15 PM

psychotic400ex

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valves - ex

4 valves

2 of them Intake Valves
2 of them exhaust Valves

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04-26-2004, 04:26 PM

orky4969

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valves - ex

do you have to adjust them?

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04-26-2004, 06:29 PM

psychotic400ex

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valves - ex

yup, look in your owners manual it will tell you how often you need to adjust them. I think it's after 20 hours the first time you adjust them. And then from then on like 50 or 100 hours. Look it up though.

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