View Full Version : Ques never seen asked...
TMSmx47
08-17-2006, 04:36 PM
Hey guys whats up. All these questions and no one ever asked about a new piston break in.. or should I say proper break in. Just curious how you guys break in your motors after installing a new piston?
Me I do 5mins roll on throttle.. let it cool down. Then 15mins still roll on throttle.. let it cool down. Then 30mins a little harder on the gas but still roll only half throttle.
MAD450r
08-17-2006, 04:55 PM
Thats all I have ever done with breakin's and never had a single problem.
start it once let it get nice and hot at idle or just put around a bit then let it cool down fully.
cals400ex
08-17-2006, 09:36 PM
i get it up to full temp and then put it to the floor. i change the oil after 20minutes of ride time. i do the same thing again and change the oil again after an hour or two.
coryatver
08-17-2006, 09:43 PM
I start it up and ride! On YFZ's start it up and hold it wide open. It will sieze if you don't! The 2007's got a oil injector so they should have the problem.
400exrider707
08-17-2006, 11:30 PM
Actually this is one of the more popular technical topics on this forum, try searching. Quite a few people do the hard break ins, including myself. www.mototuneusa.com
^^^^^^^^^^^^^^^^^^^^^^^
I agree!!!!!!!!
chad502ex
08-18-2006, 07:33 AM
motoman method. I've tore many builds down and can verify motoman method looks the bests on internal parts....
;)
roundsy
08-18-2006, 08:35 AM
motoman forsure!
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