Husaberg doesn't work. engine after renovation, replaced piston, timing sleeve, valves, bearings. After assembling it, it started very hard, when it's warm it works every time, when it's cold it takes 2 hours to start it. carburetor cleaned. valves set to 0.12 then to 0.15 and nothing when starting, the spark plug is dry, it doesn't get fuel, when it's warm, everything is fine, please help, I have no more ideas