Doc,Dr Rockso wrote:well the rt180 is the same engine , so the bottle , intake , and hose have already been setup to work for mine from yamaha . they even use the same exhaust , actually the only thing that changed on the rt besides the lighting being removed is the jetting . i just have to get it tuned right but i figured i better put on all the stuff i'm putting on it before i tune it . i don't claim to know anything more than basic tuning , i can take it back off if you think it'll be a problem , but i sure do like what it did to my idle adjustability . it didn't seem right to me that bottoming the idle screw into the carb was only good enough for 1000rpm .
I would be looking for the RT carb jet settings or an RT carb itself but not in california !! and work with that as abase. the easiest carb I found was the model 18L Dt with its fat pipe and superior carb (different casting entirely ) see my patriot pic for the fat pipe look I had it fitted with the supertrap end can and that proved to be a real power house bike with the end plates set at high number 7 or 9 so if I remember right.
