UK Karting - Notice Board (2-Stroke Karting) : Re: 1997 rotax carb

Notice Board (2-Stroke Karting)

Re: 1997 rotax carb
Posted by 'John' on 07 Apr 2011 @ 07:15

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JohnJoined: August 2001
Total Posts: 1
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B1.4.2 Carburettor. Dell’orto VHSB 34 QD or QS.
All parts of the carburettor including the body are to be unmodified and run as supplied by Rotax. The
carburettor must have VHSB 34 (cast in body) QD or QS (stamped on body). All parts must comply
with the official fiche. The only adjustments allowed are the main jet, external air screw, throttle stop
adjustment screw, and needle position on the five grooves provided. Needle jet atomiser FN 266.
Choke jet 60.Idle jet 30, idle jet emulsion tube 30. Needle K27 or K98 (Rotax Part No 261191). Float
needle valve 150. Slide 40. Floats 5.2gr. Atomiser Type 2. Alternative idle jet 60, idle jet emulsion tube
60, and 3.6gr floats may be used. Idle jets, idle jet emulsion tubes and floats may not be mixed and
only used in one of the two following combinations:- Combination 1: Idle jet 30, idle jet emulsion tube
30, floats 5.2gr; Combination 2: idle jet 60, idle jet emulsion tube 60, floats 3.6gr. The venturi must
have 34 cast and 12.5 or 8.5 stamped on the top of the venturi. Throttle cable and adjusters are free.
It is permitted to use a single length of vent tube looped across the two air vents of the carburettor
with a hole or slot cut in the side of the vent tube at the top of the loop.

Message Thread:

1997 rotax carb by 'Hunnikinmoss' (05 Apr 2011 @ 23:03)

Re: 1997 rotax carb by 'alanrr' (06 Apr 2011 @ 21:13)

Re: 1997 rotax carb by 'ScoobyScene' (07 Apr 2011 @ 6:43)

Re: 1997 rotax carb by 'John' << You are here!

Re: 1997 rotax carb by 'Hunnikinmoss' (07 Apr 2011 @ 10:53)

Doh! John, you're wrong! by 'alanrr' (07 Apr 2011 @ 11:44)

Re: Doh! John, you're wrong! by 'John' (07 Apr 2011 @ 15:58)

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