It was running fine, it sat for a week when i tried starting it wouldnt turn over. i have good spark good compression timing is right carbs have been cleaned. its getting plenty of fuel i can watch it spray out new harness all lights work starter turns over real strong, when i push start it it sounds like it wants to fire but it doesnt please help im goin nuts
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Re: 74 cb200 wont start
1ST CHECK THE PLUG IS IT DRY AND CLEAN IF ANY DOUBTS REPLACE IT.as spark plug might work good out but under pressure its a bit differant . or check the valve clearance on Exhaust'Ihad the same trouble with my Triumph 5oo years ago
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Check your timing. Your timing chain may have "jumped". They usually do that as you are shutting the vehicle off. Turn the engine over until the timing mark on the crank is at 0 on the pointer. Pull the distributor cap and see where the rotor is pointed.It should be on #1. If it is a long way off, like on the other side then rotate the engine 1 complete turn and check then.
Ok. Start from scratch just to make sure your not missing something simple. Verify you have compression on your cylinders. If you dont have a compression tester you can always use your thumb and spin the bike over.If you have good compression, then the next issue is spark. Pull off a spark plug wire with a pair of insulated pliers, hold it next to the plug and try to start the bike.If you have no spark then that is your starting problem.If you have good spark, then your last issue is going to be fuel. But I am betting you have a spark issue. Good luck.
Any time a car sits for a long period of time you should completely drain the gas tank. The gas is more then likely stale. Try pouring a little new gas into the carb or use starting fluid. If it starts you have found your problem and will more then likely have to drain and clean the tank and replace the fuel filter.
If it does not start with the new gas, it is either a compression or timing issue. If you have spark at the plugs, and GOOD fuel in the carb and it still wont start I would check the timing. If the timing is on, check compression. If the engine sat to long with no oil in the cylinders they can build up condensation and rust. Then when you try to start it with the rust in the cylinders it can destroy the rings and cause compression loss.