i am experiencing rudder shimmy through right pedal just after lift off.

My 601 is 6yo, 350 hrs Jabiru 3300.  My hrs 800.

i have checked cable tensions, all ok.  It settles after about 5 seconds of applying rt and or left rudder.

ball is in centre

i have removed wheel pants, no change.

any suggestions?

Bob Emery, Perth W Aus

Jabiru CHT temps high, on 2,4,6, but 1,3,5 OK.

All EGT OK.

I flew my new Zodiac for the first time today, It was great, except for the high CHT.

I had someone else fly it first, did my GA conversion and flew it today.  I was told cyl 4 was too hot (170 C), so I installed a baffle in the ram air duct above cyl 4. (Jabiru 3300), The test are much cooler.

When I flew it cyl 6 was hottest.= the baffle cut air to 6.

I tried cutting off the lip on the cowl, and…