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apachepride
01-04-2008, 10:00 AM
how did you find top dead center when the install was complete i was told to stick a screw driver in the spark plug hole what for it to hit top of stroke and rock it back and for just as it starts down divide distance between the two ? anyone got another way just doing my home work before i start

thanks
01-04-2008, 10:21 AM
Isnt TDC when you have the flywheel bolt unscrewed so you can see it and there should be 2 lines to line up.
apachepride
01-04-2008, 12:39 PM
im talking about how you find it with the timing key installed i know how to find it stock but once you advance it it throws the marks off right
01-04-2008, 01:20 PM
hm not sure then good luck
2004exrider
01-05-2008, 08:05 PM
Very softly, stick a screw driver in the spark plug hole and feel for the piston.

Jimmy
apachepride
01-06-2008, 08:57 PM
thanks for all the help
pods_BMOC
02-03-2008, 01:44 PM
there is usually marks on the flywheel and the cases, line them up and it is TDC, look in your service manual if you have one.
apachepride
02-03-2008, 02:09 PM
Originally posted by pods_BMOC
there is usually marks on the flywheel and the cases, line them up and it is TDC, look in your service manual if you have one. the advance key makes it unable to use the marks thanks anyway for your help got it
pods_BMOC
02-04-2008, 07:04 PM
Yea
hess442
02-06-2008, 05:14 PM
is this wat your lookin for..Ignition Advance Key (http://www.atvriders.com/articles/timingkey400ex.html) it was under the articles section.
BLK400EX
02-06-2008, 06:07 PM
can you run that key with a 10.1 piston safely
apachepride
02-07-2008, 09:18 AM
Originally posted by hess442
is this wat your lookin for..Ignition Advance Key (http://www.atvriders.com/articles/timingkey400ex.html) it was under the articles section. no i used that already ive already got it taken care of with the help posted from 2004exrider thanks
josh31
02-08-2008, 03:24 PM
yes, you can run it with a 10:1 piston safely. I've ran it with higher than that and had no problems.
JOEX
02-08-2008, 07:36 PM
Originally posted by BLK400EX
can you run that key with a 10.1 piston safely
Depends on your entire set up. I couldn't with a 10.8 piston...
apachepride
02-08-2008, 08:46 PM
ive heard both ways one says yes with good studs and theirs the no blows it blows head gaskets so dont know
BLK400EX
02-09-2008, 06:19 AM
all it has 10.1 piston stg1 cam slip on, filter, jet kit