OK, here's my initial impression of the TZ.
I got the 5-port model with slide carb. Fitted on my S710.
Commenced run in yesterday.
Before I installed it, I took it apart to check the internals for any dirt, debris, etc. Looks good. Now I regret not taking pics.
1st tank, ran really rich at WOT to flush out whatever foreign items left in the engine. Temp at around 70+C.
2nd tank, leaned a bit and ran around the track straight at mostly WOT. Temp in the 80+C range. Stopped after 1/2 tank let engine cool and commenced running.
Same for the 3rd tank. Leaned slightly, about 15~20degrees HSN.
4th tank, ran full tank around the track, like normal driving, leaned enough for 2nd speed to kick in but still very rich. At this point, HSN is about 1 1/2 to 1 3/4 turns out from fully closed. Didn't touch the other 2 needles so far.
5th tank, leaned to 1 1/2 turns out. Running very rich but able to kick in 2nd speed without problem. Down the straight,
, already as fast as my 12 TR. Infield still sluggish because still very rich.
Engine temp, still around 90C...
Exhaust manifold temp at 120C range.
FYI, I ran it at night. Ambient temp around 25degrees.
P/S still very tight. Sometimes, still jammed at TDC when I try to start from cold.
Will continue run in this weekend.
Gonna bring engine temp to around 100+C from 6th tank onwards to get proper heat cycling.
I welcome any comments, tips ,etc...