What are the reasons for a new fuel-injected motorcycle lacking power when climbing hills?

[Adam]

The reasons for a motorcycle lacking power include issues with the ignition switch and air filter. Contact issues: Poor contact in the ignition switch or a faulty connection in one of the ignition system wires can cause irregular ignition. It’s also possible that the ignition system itself is faulty. Check if the drive belt has stretched significantly, causing slippage, or if the variator weights and belt pulley are worn. If the air filter or exhaust pipe is clogged, insufficient air intake and exhaust can also lead to power loss. Fuel tank issues: If the carburetor’s air-fuel mixture is incorrect or clogged, similar problems can occur. Scooter motorcycles have an electronic choke—check if it is open. A malfunctioning vacuum fuel valve can cause poor fuel delivery. Worn camshafts or valve rocker arms can disrupt proper air intake and exhaust. If there is air in the fuel line, fuel supply may become intermittent when climbing hills due to tank movement. Also, check if the spark plug is misfiring.