The Honda PCX / Forza / ADV150 / SH Forums

easyrider wrote:In my opinion the moto man has some good points but very inaccurate in others. For example, when the fire occurs pressure is forced equally down on the ring both in front of and in back of the ring.towards the piston but the pressure will be applied equally to both sides. the spring helps direct pressure to the inside of the ring forcing the ring outwardly. However,many engine tuners think that a fast hard run will break in the rings sooner , but not necessarily true.Same as if you were to file down a burr would it come off faster if you move the file faster. No, it wont it will take just so many passes to remove that same amount of metal fast or slow.In modern day engines there is a slight wear in period but once that wear is evenly distributed the rings will ride on an molecular oil sheet and no longer touches the metal cylinder wall. Fast or slow this wear in period will not change . It is based on revolutions and not on how hard you work the engine.Many tuners believe that the best approach is to moderately stress a new engine and most importanty to vary the RPMs so that the rings will seat more evenly.

easyrider wrote:

easyrider wrote:In my opinion the moto man has some good points but very inaccurate in others. For example, when the fire occurs pressure is forced equally down on the ring both in front of and in back of the ring.towards the piston but the pressure will be applied equally to both sides. the spring helps direct pressure to the inside of the ring forcing the ring outwardly. However,many engine tuners think that a fast hard run will break in the rings sooner , but not necessarily true.Same as if you were to file down a burr would it come off faster if you move the file faster. No, it wont it will take just so many passes to remove that same amount of metal fast or slow.In modern day engines there is a slight wear in period but once that wear is evenly distributed the rings will ride on an molecular oil sheet and no longer touches the metal cylinder wall. Fast or slow this wear in period will not change . It is based on revolutions and not on how hard you work the engine.Many tuners believe that the best approach is to moderately stress a new engine and most importanty to vary the RPMs so that the rings will seat more evenly.

Revised see above comment.

JetPilot wrote:
You are not doing your scooter any good by using the outdated " Running In Period ". Educate yourself a bit, and take 5 minutes to read this article. I use this on all my new bikes and have confirmed it to be accurate. Almost all the aluminum powder I get out of the oil is in the first 50 miles, exactly as this guy says. REALITY: The first thing 90 % of riders want to know is how fast their scooter or motorcycle is, and go full throttle for a bit on the first ride. If this were wrong, almost EVERY bike and scooter would be burning oil, etc. etc.

http://mototuneusa.com/break_in_secrets.htm

Mike

Brent wrote:Chapel77, Welcome! I don't have a top box either. I keep a folded-in-half backpack, and two small spider cargo nets in my seat for any unplanned cargo. It has worked well for almost two years! (Oh, and white PCXs are the fastest!)

PCX150Rider wrote:Any problem getting that piece of plastic off (Grill) to get access to the windscreen holddowns?

Chapel77 wrote:...... took longer to take some photos .....

Took photos on my camera, too big to upload onto here.