According to the following article written by MotoMan :
http://www.mototuneusa.com/break_in_secrets.htm


The best way to break in a new quad is to ride it pretty hard after warming it up. Also, he recommends using regular (non-synthetic) oil in the engine. How reliable is this method???? Have any of you done it? Thanks.

 

Using non-synthetic oil will void my warranty. Why would I want to do something that stupid?

 

<div class="FTQUOTE"><begin quote>Originally posted by: jumbofrank

Using non-synthetic oil will void my warranty. Why would I want to do something that stupid?</end quote></div>

That doesn't really answer my question.

 

Hacktorious,

Interesting article; have seen variations of this over the years, but I don't know anyone who has followed this one to the letter. The people that I know who use a similar method are either racers or individuals who do not keep their machines very long, so I don't know about long term effects. My family is full of mechanics and they all stick to the manufacturer's recommendation. My take on this is just my own opinion. While this guy has tested 300 engines, Yamaha, Honda, Suzuki and Polaris all spend hundreds of millions of dollars on Research and Development with the intent of producing machines that will create brand loyalty by manufacturing a machine that will last and will satisfy the customer. I personally would not break any engine in this manner based on what someone on a forum told me. What may work for one machine is no guarantee that it is the best way. I am sure you will find more who are satisfied with the results of sticking with the manufacturer's recommendation, but what do I know.

I am breaking my Grizzly 700 in right now and believe me, I sure wish there was a quicker better way; boring.

 

Good point. I think I will stick with what Honda says.

 

As far as break in goes I have allways been a big beliver in ride it just as you plan on riding it the bike the rest of its life no matter if it going slow or going fast and allways do your oil changes with what the manufacture reccomends and on a regular bassis!

 

<div class="FTQUOTE"><begin quote>Originally posted by: hacktorious

<div class="FTQUOTE"><begin quote>Originally posted by: jumbofrank



Using non-synthetic oil will void my warranty. Why would I want to do something that stupid?</end quote></div>



That doesn't really answer my question.</end quote></div>

The answer was obviously implied but I will spell it out so there's no misunderstanding. N - O. No. I haven't tried it.

Therefore I don't know how reliable it is. I'm not going to void the warranty on a brand new machine to satisfy my curiosity about a method that is contrary to everything the manufacturer reccomends.

 

I've followed Motoman's method to the letter breaking in 4 machines now... and counting. Works great. I can't complain. Btw, you should NEVER use synthetic oil when breaking in and engine.... No matter what method you use. Any mechanic will tell you that.

The one engine I broke in soft ended up buring oil 9 months later. I did the 10% throttle, then cool down, then 20%, then cool down, etc, etc... But it also had a bad rod bearing, so its not a conclusive experiment.

Now days, I won't even start an engine, even to see if it runs, until I'm ready to run it full throttle under full load.

But that's me. To each his own. In my case, I buy old machines and think nothing of tearing them down and rebuilding them, so I can definitely understand someone not wishing to void his warranty experimenting.

Btw, I've also done motoman's porting method. I can't complain there either. The man knows his stuff!