Maintenance & Technical > KX500 Original

How to build an @ss whooping KX500

<< < (5/5)

sandblaster:
NOS

manco:

--- Quote from: Motorrad on September 23, 2015, 06:36:00 AM ---
--- Quote from: manco on September 23, 2015, 04:39:18 AM ---Could always smoke the clutch. Get some fer real horsepower at low speed that way. rip rip riiiiiiiip!

--- End quote ---

English translation?

--- End quote ---

Traveling at low speed keeping the throttle up and the motor revving producing high HP while modualting the clutch's engagement considerably never quite allowing it to fully engage thus constantly slipping the clutch to some extant causing the clutch plates to get so hot they breakdown quicker then normal.

"rip rip riiiip rip riiiiip" would be the sound heard from the bike at its was throttled, clutch mostly released, rpm start to drop, clutch is pulled back in and the process starts alll over again.

Real world example: Clearing a rough trail by juggling clutch & throttle at low speed jerkily working the way up, over, around and through a technical rock garden without stalling the bike while letting the clutch take the abuse.

manco:
KX500 chainsaw makes short work of big log. Has left facing muffler.

https://www.youtube.com/watch?v=_Ddw6zP8F4E

hp-usa:
I've had an '86, a '98 and a '02 street legal.  This is what I have done to give them more, useable power:  1)  with the head off, and the piston at TDC, measure the distance the cylinder extends above the piston's outer edge (this is a manufacturing tolerance). Turn this amount off the cylinder's BASE. This does two things--it increases the effective power stroke and raises the compression ratio. Make sure to check the squish clearance and keep 0.050" minimum and the increased compression may require more octane.  2)  a RAD valve in combo with the FMF Gnarley pipe makes the "E" engines have more off idle punch like the '86 engine. 3)  the PWK carbs are much more influenced by the slide cutaway than Mikunis--go two steps richer than stock (they are very lean) and not only will it pull harder on bottom, you'll notice most of the surging at constant high speeds is eliminated.  Oh, and buy shirts with longer sleeves...you'll need them!

 

Navigation

[0] Message Index

[*] Previous page