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Post by Botanic on Mar 9, 2006 11:51:43 GMT
I promised to report from the Swedish forum about the big bore kits in some other thread. Apparently people that has changed to 80cc from 50cc have figured out that the original carb is not optimal. After changing to a Dellorto 17,5 mm the result is supposed to be amazing. After "Cali" changed his carb he wrote: "I created a monster!". He has not tested it properly due to the bad weather over here (-20 C and snow...). The new carb is a Dellorto 17,5 mm PHVA. PHBN is supposed to fit even better. It cost 551 SKr (40 GBP). www.baotianforum.com/viewtopic.php?t=1738&highlight=Cali thinks that the original 50 cc engine would feel happy by changing to the same carb too. My guess is that a few people are going to test this carb on an original engine soon. |
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duff
Forum Master
Posts: 82
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Post by duff on Mar 9, 2006 19:48:58 GMT
so any where to get this carb in the uk?
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Post by Botanic on Mar 9, 2006 22:14:09 GMT
The only difference between the PHBA and PHVA is the choke.
PHVA has the exact same mounting for the choke as our original carbs. So PHVA is probably the model to go for (I said the opposite in my first post).
Dellorto is a quite common carb. Should not be hard to find in the UK. Yamaha 03 Aerox has this carb for example.
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Post by dmilo on Mar 9, 2006 22:54:31 GMT
hey , I can get a 150cc carb that would fit my 80cc scoot perfectly  what would be the advantages  dmilo |
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Post by ally1756 on Mar 9, 2006 22:58:23 GMT
ermm i think i wouldnt bother it will spit too much fuel and air in and will probably just keep floodign and wont start, dont think its a gd idea bud ally  |
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Post by dmilo on Mar 9, 2006 23:00:43 GMT
thanks ally
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Post by Macrofeet on Mar 9, 2006 23:02:07 GMT
looks same as the carb on my 125
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Post by dmilo on Mar 9, 2006 23:12:12 GMT
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Post by ally1756 on Mar 9, 2006 23:14:12 GMT
you could always give a try
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Post by dmilo on Mar 9, 2006 23:16:27 GMT
Its pretty pricey 81 usd
how much of a difference could it really make ??
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Post by ally1756 on Mar 9, 2006 23:18:44 GMT
nothign really the carburettor only provides the fuel/air mixture it cant make it burn it any faster, would be better upjetting ally |
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Post by ally1756 on Mar 9, 2006 23:19:16 GMT
but its only theory ive never put it to practice ally |
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Post by Badobsession (the real one) on Mar 9, 2006 23:28:37 GMT
I reckon leave well alone  |
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Post by dmilo on Mar 9, 2006 23:38:30 GMT
I have already upjetted and changed cdi to rev unlimter /race cdi
but havent had a chance to test due to the weather .
I also bought a better torgue spring from assassins but havent installed it yet
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Post by Macrofeet on Mar 13, 2006 18:57:40 GMT
one thing on the 125 carb is the air intake part is slightly wider then on the 50cc carb
the freeflow filter i got from assasins would not fit for example meaning the airbox will not fit also
you'd need a wider pipe or freeflow
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Post by Botanic on Mar 14, 2006 10:41:21 GMT
The bigger the carb, the more air and fuel you get into the engine. This is supposed to make a big difference according to the few people that have done it.
Those people that have done it so far on the swedish forum has a big bore kit. No one has done it yet with the normal 50 cc engine.
I have not done it. I am just reporting from over here as I promised ;-)
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Post by cb50j on Mar 14, 2006 19:30:51 GMT
I reckon it would probably be ok, about 10 or more years ago I put the twin webber carb and k+n filter from a 3.0 capri onto my 2.0......seemed like a few more horses under the bonnet, induction noise was great. theoretically your looking at similar................
.................. #sprint#
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