Translations:KAVAN S15-S180A/R FS30-FS180AR - Instruction Manual/42/en

• Adjusting the needle-valve (1) - slowly open the throttle fully, and then slowly close the needle until the engine sound starts to change (from a high pitch to a lower pitch). Disconnect the glow plug heater. If the engine stalls, close the needle a little more (about 30 degrees) and start the engine again.