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where to start on a motorcycle that has been sitting for over 10 years. Honda NightHawk 1981 CM400c?

my uncle gave me a 1981 Honda NightHawk 1981 CM400 (engine is cm400c.) the motorcycle has been sitting a garage for over 10 years and was covered and left out doors for about a year before i gave it a good home. This is my 1st motorcycle, and 400cc is a great learning bike. I know it needs new tires. I‘m handy and have most of the tools. please help point me in the right direction. -looking for recommendations for parts (venders) -general list of parts i should start with? thanksShawn

Answer:

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You're in for some work, mate. Start with the brakes. That's for sure. Make sure that you strip them down, replace the brake pads, replace the brake fluid, and make sure that all the actuators are moving freely and the any springs are still moving and aren't corroded to hell. Once your brakes are working then I'd certainly get the tyres sorted. While you've got the wheels off the bike lubricate the axles and spacers. After that I'd check the condition of the suspension. Just to be make sure I'd change the oil and seals on the forks and perhaps inspect the steering stem head bearings and repack them with grease (replace if necessary). After that I'd change out the chain as it's probably seized up pretty good. May as well do the front and rear sprockets while you're on. Drain and replace the coolant and while you're doing it check the condition of the hoses. If any are split or looking brittle then replace them. The bike's going to need an oil and oil filter change, no doubt about it. After that comes the tricky bit. Petrol / Gasoline basically goes off after a couple of years and starts turning gummy. If the bike's had the same fuel in it for 10 years the carbs will be silted up to hell with that ****. You're going to need to clean the carbs thoroughly and replace the fuel filter (pray that the fuel lines aren't silted up with it). You may as well change the air filter too while you're under the tank.and replace the spark plugs while you're onand and the battery's probably f*cked but it might be worth trying to get it to take a charge before buying a new one. Assuming that you've done all that and you've got the bike running then just check that all of the lights are working and you should be fairly good to go. Sounds like a lot of work but part of me is quite jealous. I love working on my bike and the transformation should be excellent when you're done. Good luck!
If i were you i would start off getting all the old gas out of the gas tank, then after that i would either rebuild or clean out the carb, try cleaning it first to see what that does. then check to see if your spark plug is firing. clean out you airbox/intake. remember the 3 basics things to have your engine running, 1.fuel, 2.fire, 3.oxygen. if you have all those working perfect then it is probably something in the engine. It would be best to drain all the old oil out and replaces it with new oil. also like another person said check your brakes, theres no use in going if you cant stop. Also keeping your bike clean never hurt anything :)

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