At $200.00 usd a spring, you'll have trouble finding any takers. But the washer suggestion sounds interesting.
Quote:
Originally Posted by micoulisninja
To conclude and answer (eventually your question there are two options if you want stiffer springs...the first is expensive (IMO)
http://www.rdvalvespring.com/kawasaki.html
and have no reviews on it (yet)
and the second is cheap: you place a 1mm steel washer underneath the valve spring to preload it more...
now for some info I think few have and wish to share...
STOCK SPRING TENSION
@1mm 7kg
@7mm 30kg
@13mm 55kg
39mm total length, 26mm fully compressed
spring compression must by no means exceed 10mm when engine working
so if you are to use a 1mm washer under it camshaft max lift must not exceed 8,9mm (I have mine at 8,45mm...) considering that spring is already a bit compressed to be put in its place...
All of the values mentioned above apply only to the 250 and 300 engine |