Maintenance & Technical > KX500 Original

kips for kx 500

(1/2) > >>

KXDINO:
I need  some advice.

K5 needs it top end.

I've taken  the kips cover off the motor and rev motor , the rod move's out ,but not far enough,
while reving motor i can move the rod even further with a large screwdriver.

Is it from the powervalve , drums amd flap pins worn out and won't allow it to open????
the motor got good compression and runs well, but  needs that extra rev power I know its got .

Low and mid range power is excellent

The last time i had it apart  i notice PV pins had a fair bit of wear on them .

I was reading one of Eric Gorr books and he  wrote , "when the drums valve  get worn the center wedge valve won't fully open , and bikes get noticeable slower"

Friar-Tuck:
 Dino,
 Kaw Rider has a post in a recent thread about worn "flap Pins" also.
http://www.kxriders.com/forums/index.php/topic,5017.0.html
   you might check that out. 
If I remember Eric G recommended pulling the pins out and rotating 180 deg and re-installing them for a little more service.
  I'll take a peek at some sites that have parts diagrams and see if the pins are separate from the flap or it's one part.
 For that matter if someone has one apart and could Measure the "Good" end Dia. and length we may be able to outsource a stronger item.
   There is also a thread on the KIPS bolt length Mod that has proven to do a great job on improving power.  It doesn't allow the drum to over-rotate closing the exhaust port. You lose the "Compression Release"  effect but gain some more movement on the "Flap"    http://www.kxriders.com/forums/index.php/topic,1367.0.html
 I don't recall anyone else having a problem with the "Drums" other than they got gummed up,  Hope this helps.
  Tuck\o/

KXDINO:
thanks tuck\o/


 I Did the bolt modification , the piston / window mod - I  liked it

I order the drum ,flap and valves  from kaw 2 weeks ago , I will pull it all apart when recived parts,

i"ll let you know how it goes

( Its hard to to get parts in Australia - parts are on back order from  japan)

I've read all the other sites

i'm trying to shed some light on it to get the bike to rev harder

dino

Friar-Tuck:
 G-day  Dino,
 You have a bit more knowledge than your post led me to believe, I apologise. :|
 You may want to P.M. Stewart, BDI and Doordie  (on this site) as the have a great deal of experience and are willing to share.
   There are a few guys here that have in the past done some shopping for a brotha' Down Unda' and sent a "Gift"  :wink: to Oz for no more than the actual cost.
  Cheers,
   Tuck\o/

KXDINO:
tuck\o/

thanks for that imformation i will keep that in mind.


i try to read this site daily if i'm home from work (work away)

i'm pretty sure these worn power valves are the trouble .

actuator arm is only going halfway out , hopefully with new parts it should come out all the way
i'll let you know

and thanks again

dino

Navigation

[0] Message Index

[#] Next page