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Post by quinn67 on Mar 14, 2022 12:30:47 GMT
Hi Guys can you advise me on a carb size. Is a 75cc DR kit compatible with a 19/19 delorto or am I better fitting a 16/16 just looking for reliability. Thanks in advance Garry
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hrvespa
ETS
1981 50 special, 1977 primavera, 1964 GL 150, 1975 125 TS (early P200 engine)
Posts: 164
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Post by hrvespa on Mar 14, 2022 13:42:59 GMT
I guess it all depends on if you are just gonna bolt the kit on or do other stuff like port matching/blending, gearing and exhaust etc.
SIP tech pages suggests the 16.16 for the DR 75cc road kit and the 19.19 for the DR 75cc F1 kit.
I'm sure the numerous engine guru's will offer better clarity....
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Post by gugne on Mar 14, 2022 14:27:57 GMT
I've an 80cc Pinasco kit on the 50N I have and I fitted a 19. Standard pipe. Runs really well.
I changed the gearing to give me a better top end and fitted a 12v fly because I hate points.
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Post by henri on Mar 14, 2022 16:48:06 GMT
what have you got , if its a 16/10-16/12 carb on already to go to a 16/16 needs another manifold . if youve already got a 16/16 an manifold i'd stick with that .the gains from going new 19mm an manifold are far outweighed by the cost .H
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Post by chris66 on Apr 27, 2022 17:44:52 GMT
I was running a 19/19 carb on my 75cc DR kit for years without a problem. I'm using the same carb on my 130 DR kit as we speak and it runs okay.
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Post by tzsteve on Apr 27, 2022 18:14:54 GMT
I have a very dirty old 19 mm manifold you can have for the postage
But it will need a serious cleaning
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Post by quinn67 on May 9, 2022 19:54:24 GMT
Cheers guys for your help. It's got a 16/16 now.
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