thanks God for jerry...and all the brothers here in the forum.
your willingness to help and the passion did exists in the forum.
 there is nothing in the world any other.

Ihave reinstalled the Powerjet,
and the main jet i change with 420
must drive with airbox lead,
Is just too loud without.
 For me and for all other neighborous and for the police :-)
I installed this at 7 clock in the Morning and take a ride aroud the Frankfurt city.
When the most Streets are empty.
My zilla runs a lot better.
but if I in gear disengagement the engine turns on ...
and I have to slow him down again with the clutch.
It isnt the trottle cable .
I must check the ignition system ?
Or the powervalve has any scratch ?

Thanks for the baja article  are very intrest for me.
More of this kind of stuff please i love the vintage of the zilla.
I like the stoey of people that have glory with thisold 2stroker quad...

El diablo must say i have 15 in Front and in the rear 35 teeth sprocket maybe i build me one wit
32 or 30 teeth. Or any body knows on this sprocket was installed on a other bike ?
My target is to drive in healthy rpm's 140 kmh on the Autobahn ;-)
FRANK....

It sounds like you have a very lean air fuel ratio at closed throttle. Remove the carburetor from the rubber reed intake manifold with the throttle cable still attached to the carburetor.  The throttle slide should not be open more than 2 mm or the engine will not come down to a low idle RPM.  If the slide has less than 2 mm of opening when the throttle is closed, make sure that you have installed the jets and needle that I recommended.  If you have all of the jets and needle I recommended, you have a air leak somewhere.  Look for leaking base gasket, reed gasket, bad crank seal or the engine cases are **** where they meet in the crankshaft area because of a prior broken piston or failed connecting rod bearing.