S3 carburettor adjusting screws idle + air + springs - choice of colour

S3 PARTS offers this carburettor adjusting screw. The carburettor meters the air-fuel mixture. The fuel (mixture) screw and the idle screw let you adjust the mixture and the idle speed.

Why fit these adjusting screws?

The benefits:

• Adjust the carburation trackside in seconds.
• Adapt the setting to the day’s altitude and temperature.
• Anodised aluminium knob, easy to see and turn.

Why choose S3 PARTS?

S3, a Girona (Spain) company specialising in trial and enduro, exports to more than 40 countries and supplies many factory teams.

When should you replace this part?

A mixture that is too lean makes the engine run hot and can seize it.

Specifications and fitting tips

• S3 adjusters for Air mix screw and idle screw for Keihin carburetor
• 1005 aluminum springs
• Manufacturer part number: BL-610-U / BL-610-B

Cross-Mania tip: Note the number of turns of the original screw before removing it and start again from that setting.

Compatibility

Universal part: check the dimensions given before ordering.

Colour: pick the colour from the list; the part is identical in every colour.