Tnx guys...

im also.. a bit.. scared.. "speed tuned" as it may be fragile (is this a myth? or for real..) (my friend got a 5 port 12 tz.. i dont know.. but.. it is screwed up.. like hell.. it run well.. but.. after half a gal.. then it got ugly.. - diff story..)

anyways..

12TZ
3-needle 11M rotary carb
Standard 0.128
(2.1 cc) 0.543
(13.8 mm) 0.551
(14 mm) 7.9
(225 g) 1.5 @ 33,500


is it durable?

maintenance tips?

also.. i use.. sidewinder on my rtr..