1. Drop the belly-pan and remove EXUP cover plate (where the two cables
disappear under, by the EXUP valve section).

2. Remove the bolt holding down the rear of the fuel tank and slacken off
the bolt at the front. Raise and preferably prop tank with wood.

3. Take a twist drill that fits snugly in the hole behind the now-visible
EXUP valve cable pulley, and lock the pulley in place with the back end of
the twist drill. There is a slotted protrusion from the cable pulley-wheel
to allow it to be locked in this way.

4. Under the tank, tighten the cable adjusters so as to remove the slack in
both cables.

5. Remove the twist drill from locking the pulley wheel, and turn ignition
on ensuring that the pulley does not move and settle in a different
position. Repeat cable adjustment if necessary to ensure that the pulley
settles in the same position as when the twist drill was inserted.

6. Apply coppa-slip grease around the cables and pulley wheel and to the
threads of the bolts holding the cover-plate, replace plate, tighten down
tank, job done!

Note: If you find that with the ignition on that the Rev-counter indicates
7000 RPM repeatedly, cycling between 7k and 0 RPM, you have over-tightened
the cables.

Comprehensive instructions on Thunderacers website
http://www.thunderacers.com

Good luck!















   Time for some thunderace educating here....As a self proclaimed expert
on the YZF-1000 :-) ....I find that your 1 down, 2 up sprocket choice is not
a good idea.  My recommendation for you is a 17 front with a 48 rear using a
DID 530VM X-ring chain.  It will provide optimal acceleration as well as
good chain wear.


Well said! More sprocket teeth = less chain wear.