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MX, SX & Off-Road Discussions
General Moto | Off-Topic Posts
DellOrto carb design question
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[QUOTE="steve.emma, post: 1189547, member: 36039"] hi, sorry im not an expert. but have spent some time with dellorto carbs on cars etc.. and alot of them use an emulsion tube to bleed air into the fuel prior to it being feed into the idle or transition circuits. i guess that on a trials bike (and like on a car) slow speed and part throttle performance is very important, so having a slow air bleed tube is another way to fine tune the slow speed performance of the bike. i would also guess that the jet (part 34) simply controls the amount of fuel as in any bike carb and then the amount of air mixed with this fuel is controlled by the bleed tube (part 17). hope this helps. [/QUOTE]
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MX, SX & Off-Road Discussions
General Moto | Off-Topic Posts
DellOrto carb design question
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