Warm suction motocross and enduro - easy starting of a hot engine

Motocross and enduro hot choke (hot start kit) is a system that makes it easier to start the engine after it has warmed up. In Keihin FCR and Mikuni carburetors, the hot start system opens an additional air channel, which temporarily impoverishes the fuel-air mixture - thanks to which the hot engine starts immediately. At Bajamoto you will find warm choke kits and valves for KTM, Honda, Yamaha, Husqvarna, GasGas motorcycles from the brands All Balls, ProX, Athena and FM-Parts.

How does warm suction work?

When you turn off a hot engine, fuel and vapors remain in the carburetor, creating an excessively rich mixture. Pressing the warm choke lever opens the air duct, which supplies more air to the intake - the mixture becomes "leaner", which facilitates ignition. It's a simple but brilliant solution that, in off-roading, often decides whether you move on after a crash or whether you dig for 10 minutes.

• makes it easier to start a warm engine,
• eliminates the effect of flooding the candle,
• stabilizes the mixture after stopping the engine,
• reduces the time needed to restart the motorcycle,
• works in all conditions - even in extreme heat.

Types of motocross and enduro warm choke kits

• OEM Replacement Kits – complete valves and links for Keihin FCR and Mikuni,
• All Balls / ProX sets – replacement with piston, spring, O-ring and plug
• Athena / Tourmax sets – high-quality seals and cables
• FM-Parts CNC sets – anodized aluminum elements resistant to mud and corrosion
• Hot start cable sets – complete Plug&Play sets with a handlebar holder.

Top brand of motocross and enduro warm choke kits

• All Balls – complete hot start valve sets for Keihin FCR,
• ProX – OEM precision replacements for Keihin and Mikuni carburetors
• Athena – premium sets with Viton seals resistant to E10 fuel,
• FM-Parts – CNC anodized racing sets for 4T motorcycles
• Tourmax – hot start sets with O-rings and piston for Japanese motorcycles.

How to choose a warm suction set?

Each motocross and enduro warm choke kit at Bajamoto has a detailed description of compatibility with the motorcycle model and carburetor type. Examples:

• All Balls Hot Start Valve Kit Keihin FCR KTM EXC-F 250–500 2017–2024
• ProX Hot Start Valve Honda CRF 250R/450R 2015–2023
• FM-Parts CNC Hot Start Kit Yamaha YZF 250/450 2014–2023

When choosing a set, check the carburetor type (Keihin FCR / Mikuni TMX) and the year of the motorcycle. The kits include all elements - piston, O-rings, spring and plug - ready for installation without any modifications.

How to care for the warm suction system?

Once a season, it is worth cleaning the valve and lubricating the piston with silicone technical grease. Dirt or corrosion can prevent the valve from returning into place, leading to starting problems. When washing the motorcycle, avoid directing the water jet directly towards the hot start cable. Replacing the hot start kit every two seasons is an easy way to ensure trouble-free starting all year round.

No stress after the start – only with Bajamoto

Choose warm choke motocross and enduro from brands that understand the needs of 4T riders. With All Balls and ProX you will regenerate the OEM system, Athena will ensure premium durability, and FM-Parts will provide an anodized appearance and mud resistance. With Bajamoto, your engine will start right away - even after a sharp climb. 🔥

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