KX Riders

Maintenance & Technical => KX500 Original => Topic started by: VooDoo1 on January 27, 2004, 03:13:34 AM

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: VooDoo1 on January 27, 2004, 03:13:34 AM

Falicon performs a dynamic balancing service for a KX500 crank and top end assembly (piston, rings, wrist pin, etc.) for $240 (includes crank rebuild, excl. parts). I'm wondering if it's a worthwhile modification in reducing vibration in comparison to just trueing the crank? Anyone have any experience with this mod.?

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: kawdude on January 27, 2004, 12:24:13 PM

If it does make it smoother it would be worth it to me.  I recently had Forward Motion redo my crank for 135 so Falicon would need to do something major for the additional 105 bucks.

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: VooDoo1 on January 28, 2004, 01:35:07 AM

Did the Forward Motion crank work make it noticeably smoother than stock?

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: kawdude on January 28, 2004, 05:23:54 AM

Can't say yet.  The motor's still apart.  I do know that the old crank had a worn journal which caused excessive vibration.  I expect it will be different but by how much I don't know.

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: teamgreen500 on February 03, 2004, 07:07:33 PM

If the Top-End and Crank parts are included...it's a great deal.

Manny

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: kawdude on April 21, 2004, 10:20:19 AM

The bike is way smoother with the new crank.  Vibration is down at least 50%.

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: teamgreen500 on April 21, 2004, 10:40:51 AM

I know EXACTLY what you mean.

Manny

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: kawdude on April 21, 2004, 01:42:50 PM

Excellent!

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: gowen on April 21, 2004, 03:22:52 PM

Quote from: kawdude

The bike is way smoother with the new crank.  Vibration is down at least 50%.

I also had FM redo my lower motor and it killed about 50% also, but that last 50% was killing me.  So, after a few mods, I'm down to about 10%. I bearly even notice it.

 :!:

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: kawdude on April 22, 2004, 03:09:13 PM

What mods reduced the 50%???

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: gowen on April 22, 2004, 05:23:18 PM

Pro Taper Bars, Aluminum mounts (instead of rubber), new grips, & bar inserts.. (which I got mostly from monkey butt)

Title: Anyone have dynamic balancing of crank/piston assembly done?
Post by: JBKX on April 23, 2004, 02:26:31 AM

I just got my motor back from B&B Racing which did a crank rotating mass balancing.  I haven't got it back in the bike yet, but I'll let you know how it feels when it gets fired up!