princevaliant1975
Them big hills west of Denver
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Joined: 04/08/2003
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I forgot to explain heat cycles but I asume you know that. Biggest thing is to check your head bolts for propper torque and do a valve adjustment/check after you are done with the break in proceedure.
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drummer89
Hurrrr.
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Joined: 05/07/2005
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comrad wrote:drummer89 wrote:I break it in like I'm gonna ride it. It's never failed me.
Hell yeah, I break mine in on an MX track 
Dude, no joke. My brother got his bike back Thursday and there was a race Sunday. So, some of Saturday practice and then Sunday race on an engine that's never been started.
Be sure to change oil more frequent the first while that your out on it. I'd say every 2 rides or so until you feel it's broke in good.
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princevaliant1975
Them big hills west of Denver
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My regular intervals of oil changes in my 4 strokes and 2stroke trannies ARE every 2 rides or after a race.
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drummer89
Hurrrr.
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princevaliant1975 wrote:My regular intervals of oil changes in my 4 strokes and 2stroke trannies ARE every 2 rides or after a race.
I'll do every three practices or after a race weekend. Oil and the Oil Filter.
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RTY
Minnesota
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Joined: 07/31/2005
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Here's some light reading for you all
it's kinda long but read it all
Break-In Secrets
I'm on this guy's side.
2001 Raptor 660
DG nerfs, DG f/r bumpers, 2" wheel spacers
Razr tires, K&N filter
temp gauge, TRACKS and SKIS
2006 Yamaha Grizzly 660 SE
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Magnum Eagle
Ridgecrest, Ca
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RTY,
Great link. I've never see that much detail on break-in. The additional supportive data is certainly worth the reading. I wonder how this all plays out since the advent of new anodized cylinder liners and Teflon coatings used on some of the other internal engine components?
Thanks,
Sid
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RTY
Minnesota
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I found it over on the totallyamaha forums when I was rebuilding my sled. I guess it all makes sense to me the way he explains it, and he has years' worth of success to back it up. I was looking at some of his other articles after I posted this, if you sign up you can see them all. Another very interesting read are his sections about the misconceptions of port size and velocity porting.
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princevaliant1975
Them big hills west of Denver
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Good link RTY! I always like differing points of view and supportive data to back it up! We need more of these types of responses on this forum.
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HotrodRaptor700
Finlayson, MN
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Joined: 11/27/2007
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That is a very interesting article, today I was cleaning the garage and why I was doing that I started the raptor and let it run for ten minutes and shut it down to cool down. Then repeated that two more times. Cause I read that article in ATVSPORT about how to break in a 4 stroke motor. Now saturday I'm going to take it out and I was going to break it in the rest of the way, the way the ATVSPORT arctile said to do it. run it for ten minutes at 50% the way I normaly ride, then let it cool for 30 minutes and then repeat this step going up 10% everytime until I reached 100% of how I ride. Now I think I'm going to run it at 100% right away for 20 minutes and then change the oil and go for it again! I hope my rings didn't seat all the way for running it on the stand Like I did today. If what this guys says is true, I hope I didn't do the start of a bad break in. I want to make sure I get everything from my motor for a long time. Crap! I hope I wasn't in idiot for doing it wrong before. This is somewhat confusing now!
2006 Raptor 700 Lots of extra's and not done yet!
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