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Rapido 225 tmx set up

Posted: Sun Aug 05, 2018 1:14 pm
by maggo1974
Hi chaps..i have a rapido 225 with a tmx 35 carb on her.has a jl exhaust and varitronic..
Pilot 20
Main 270
Needle 56 on 2nd clip
No fillter
Takes ages to start then wont tickover..when i get to tickover nicely it will then stick open when i blip throttle.so if i then undo the idle screw it will be ok for a while then stop running.i have looked on here and most are running bigger main and needle..i hope someone may be able to give some advice..cheers

Re: Rapido 225 tmx set up

Posted: Sun Aug 05, 2018 1:27 pm
by garry inglis
sounds like lack of fuel try a 22.5 pilot first and see if that sets up better if not a 25, main seems low more like 290 /300/310 and maybe a 57 needle on second clip but get it starting and ticking over first set airscrew 2turns out and go from there

Re: Rapido 225 tmx set up

Posted: Sun Aug 05, 2018 1:33 pm
by maggo1974
Thanks garry..will give it a go

Re: Rapido 225 tmx set up

Posted: Mon Aug 06, 2018 8:05 pm
by Grumpy225
that main seems really small.

My TS1225 with a TM35 was running a 290-310 main open mouth, depending on the weather (+400' ASL).

Re: Rapido 225 tmx set up

Posted: Tue Aug 07, 2018 4:17 pm
by maggo1974
Thanks

Re: Rapido 225 tmx set up

Posted: Tue Aug 07, 2018 8:41 pm
by Mrnice71
l personally tried a rapido 225 with a TMX 35 and never found a good set up , a 28 or 30 mm dellorto would be a much better choice .

Re: Rapido 225 tmx set up

Posted: Tue Aug 07, 2018 11:48 pm
by maggo1974
Thanks mrnice..it was a scoot i inherited from a mate who died..i wanted to try and give this carb a go but i was thinking of trying a 30mm delly if cant sort..i would lime to stick to mikuni for now tho...cheers