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The walls and contours of the choke tower are smooth and free-flowing, designed to
maximize air flow.
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Float bowls with sight glasses are standard on all Demon carburetors. They are light
in weight and possess a better fuel-flow passage than comparable models. The sight
glasses don't discolor with age and the float levels can be adjusted visually. Because
float-level plugs have been eliminated, the risk of fuel spilling on a hot engine
is removed. (Patent #6286817).
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CNC-machined metering blocks from billet aluminum prevent porosity and variations
in the metering circuits
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New Idle-Eze™ Idle Speed Tuning System. Fine-tunes your
idle speed by precisely metering additional air into the intake. Allows smoother
transition from off-idle, avoiding potential for stumble.
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The Speed Marine Demon™ is ideal for marine enthusiasts needing a carburetor for
re-powers, upgrades, and crate motors. Designed for engines with cam profiles up to
240 degrees duration at 0.050”. The Speed Marine Demon™ shares many of the basic design
features of its land-based cousin, the Speed Demon™, delivering crisp throttle response,
easy tuning, great fuel economy, great top end performance and gets the boat “on plane”
quickly. The Speed Marine Demon™ has an electric choke as standard equipment, and
is available with either vacuum or mechanical secondaries.
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The Speed Marine Demon™ is designed to meet/exceed all U.S.C.G. Requirements for marine
carburetors with ”J“-Style vent tubes.
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1282010EM
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650 Speed Marine Demon Mechanical Secondary |
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1282010VEM
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650 Speed Marine Demon Vacuum Secondary |
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1402010EM
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750 Speed Marine Demon Mechanical Secondary |
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1402010VEM
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750 Speed Marine Demon Vacuum Secondary |
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1563020EM
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850 Speed Marine Demon Mechanical Secondary w/Annular Booster |
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1563020VEM
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850 Speed Marine Demon Vacuum Secondary w/Annular Boosters |
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SPEED MARINE DEMON FEATURES:
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• Contemporary design
• J-tube bowl vents
• Sealed throttle shafts
• Removable billet baseplate
• Built-in power valve blow-out protection
• CNC-machined billetmetering blocks
• 4-corner idle adjustment
• Large capacity float bowls with patented float level sight glasses
• Most common tuning parts interchange from other manufacturers
(Jets, Power Valves, Squirters, etc. )
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