Do you have to break the motors in on new bikes?

Reason i ask is that my dad has a 02 650 prarie..he bought it with maybe 2kms on it. anyways we drove the bike not alot but enough..we put a total of 221 kms on it in the month we had it. anyways one day i started it up and made it about 1min down the road and it started to loose power..i looked back and the smoke was just POURING out of it...looks liek it was burning a TON of oil..or somthing bad went wrong..anyways..the bikes been at the dealer for about a month now getting fixed..

so..could this problem be because of not breaking the bike in properly? I was thinking it was a ring or a hole in the piston or somthing!

 

Bump

 

Here is a little recent information try this link read this thread

Chet

 

The below reading is from forum user's web page>>>>nyroc

Engine - Breakin procedure

Manufacturer's all have different breakin procedures. And they should be followed.

But, lets talk for a minute about them, since they may not be specific enough to answer your questions.

Is is not good to underrev any engine a lot. During breakin, it is especially important not to underrev.

It is not good to run an engine a long time at a single RPM. During breaking it is best to make sure the RPM varies. Some manufacturers claim that the camshaft breakin require 15 to 30 minutes of running with no load at 2000 RPM or so. After that try not to keep the engine at the same RPM.

The cylinder is smallest when the engine is new, the piston is biggest and has high points. It is always bad to run full throttle when the engine is cold, heating up the piston and possibly scoring it or the cylinder. But since the rings generate extra heat during break in, they can break down the oil and glaze the cylinder wall before the rings seat. This will basically ruin the engine since without seated rings, the engine will have excessive blow by and oil consumption. Not running the engine hard enough can also be detreimental too. The manufacturer's recommendations should be followed (unless you are positively sure they are wrong), since the manufacturer knows the materials used, the hardness o f the rings, cyl wall, and the ring configuration. It all plays into how an engine should be broken in. Do not ever listen to someone that says idle it or run it real slow for 10 hours. Conversly, the person that says run everything full throttle during break in needs to have their head examined. Only some engines need full throttle, it will ruin others).

Some people say break it in like you are going to ride it. Others say baby it. Don't misinterpret the wisdom or lack or widsdom of either saying.

on some machines you need to break it in moving , but with no more than 1/2 throttle, varying the RPMS and not underreving it.

other some machines with harder rings and cylinders you need to break it in full throttle, many aircraft engines and two stroke motorcycle engines are like this. They pretty much all tell you to warm it up first (bad to rev it cold). But then full higher throttle positions must be held often to create adequate ring pressure is not high enough early on, the rings won't seat.

 

Cool..thanks for the help..

The bike is ready now..so this is what they told us...

1. The bike should ALWAYS have the fuel shut off when not in use, or else it will slowly leak into the cylinders and cause problems..how true is this??

2. The bike must be warmed up before you attempt to drive it..now im not sure how long they want me to wait before it warms up..i usually wait a couple minutes or so...i didnt think i needed a Auto bike starter to warm it up 10 min before i drive it!

3. they said it looked like somone might have pulled a wheelie and tipped it back to far and this caused fuel to leak into the air filter or somthing like that...again..i dont know how true this is..

any ideas?

 

I have a brother in-law and 2 friends that have 650 Praries and they all did something very similar. When the hit around 100 miles the puffed smoke for a while real thick and then quit. They all did this once and have never done it since. None of the 3 use oil or smoke at all now. They all run good too.