KX Riders

Maintenance & Technical => KX100 / KX85 / KX80 / KX65 / KX60 => Topic started by: jonny500 on July 19, 2010, 04:23:41 AM

Title: kx 60 port map
Post by: jonny500 on July 19, 2010, 04:23:41 AM

just wondering if any of you guys have a port map for a kx 60, or if you know the transfer and exhaust duration. failing that if someone could measure the distance from the top of the cylinder to the top of the exhaust port and transfer. any help would be greatly recieved
best regards
john

Title: Re: kx 60 port map
Post by: Coop on July 19, 2010, 04:35:40 AM

I have the bad cylinder here off the KX60 I just rebuilt. I can get that measurement for you.

Edit: Just went outside, that measurement is surprising hard to get, LOL. My micrometers are all too big to fit into the cylinder, so I tried to use the depth gage on my calipers. I couldn't really it in through the port from the outside with anything to use as a stop so I measured a few times and "eyeballed it" and consistently got around .865-.867".

Title: Re: kx 60 port map
Post by: jonny500 on July 19, 2010, 05:23:49 AM

thanks coop eyeball is fine. i am porting a 50cc bike at the minute and its not going well. just thought i would compare with a competition engine to see if i was in the right ball park