I have a braend new 2005 Rancher 4x4 es with the 350. I want it to last a long time and so therefore i need to know what the proper engine breakin procedures are. thanks

 

http://www.mototuneusa.com/break_in_secrets.htm

Ride it like you stole it! After a couple of hours, change the oil and oil filter. Also, change the differential oil, front and rear. Then do it all again at 10 hrs. Stick with a petrolium based oil during break-in. I prefer http://www.maximausa.com/products/4s...vpremium4t.asp I'm not at all certain that you can run a synthetic oil in the Rancher http://forums.atvconnection.com/mess...did/444212.cfm

I live in an area of very steep hills. I warm the bike up thoroughly and ride about four blocks at moderate speed up to the hills. Then I bomb up and down three huge hills, pushing it hard on the uphills and holding it back on compression on the downhills. Then I park it, let it cool off completely, and the next day I do it all over again. I do this three times. Then, I ride it for the next 10 hrs., being carefull not to keep a constant speed, and cooling it off after every hours ride.

 

Here you go

 

This is how i broke my Rancher 350 in. Worked great, I will do it again.

 

i did the same with my kfx and it runs great

 

thanks guys i appriciate it...see i live in montana and i play in the mountains a lot and i needed to get it right so it didn't leave me stranded. [img]i/expressions/face-icon-small-happy.gif[/img]

 

i also did the same with my rancher