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250Xtreame
07-21-2005, 11:54 AM
what should i gap my valves to on my 400ex?
thanks
Rico
07-21-2005, 12:36 PM
.005 for exhaust

.004 for intake

Make sure it's on the compression stroke when you adjust them.
cals400ex
07-21-2005, 12:47 PM
that is correct. that is assuming you do run the stock camshaft
250Xtreame
07-22-2005, 10:57 AM
thanks guys, and ya its stock, for now lol
ohsobad_chevy
08-15-2005, 12:31 PM
Should the valves be at the top or at the bottom when you adjust them? I am new to 4 strokes and i have an 04 EX that needs a valve adjustment.
PunkA$$
08-15-2005, 12:48 PM
Originally posted by ohsobad_chevy
Should the valves be at the top or at the bottom when you adjust them? I am new to 4 strokes and i have an 04 EX that needs a valve adjustment.


All 4 valves should be closed on the compression stroke.

Peep this \/


http://www.atvriders.com/articles/valveadjustment400ex.html
ohsobad_chevy
08-15-2005, 03:25 PM
WOW!!! you guys are great! The internet is very, very awesome. Thanks for the input fellas. All my questions are answered now.