Undefinedhave a 49cc jawa in the 80s cant find anything for it like a manual parts timing setting's

SOURCE: Fzr 750 won't start

Best guess it that the OHC (Over Head Cam) chain is not timed properly. If too far out of time the pistons can bend the valves and crack the valve guides. Let's hope not. Put a timing light on it while the starter is turning the motor over. If the lines don't match up you had best take a look at the OHC timing.

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Please rate this answer. Thanks Maverick 24!

SOURCE: Ignition Timing Settings

All Jawa's have the same timing requirements.
2.3 to 2.8mm BTDC

SOURCE: i have a dt 125 field bike will not kick start

try squirting some fuel on the inlet and see if it firse get back to me with results

Testimonial: "will give it a go tried for hour today "

SOURCE: Hi, I have a 1982 honda 200e 3 wheeler. I was

If you are talking about setting the ignition timing, it is not adjustable on your ATC 200. If you are getting a spark at the spark plug, that means the electrical ground for the ignition system is okay.
There are three things necessary for combustion: fuel, compression, and a spark (at the right time).
If it has been sitting (for a year or more) then you can bet that the carburetor is plugged up. This means that it must be disassembled and cleaned out. Make sure the jets are clear so that you can see light through them. That missing screw on the carburetor could be the idle mixture adjustment. It will not run without this, so replace it. That takes care of the fuel part of the equation.
Check the compression. With the throttle held wide open (and the choke open) you've got to see at least 140 psi on the compression gauge. If the compression is low, adjust the valve tappet clearances. This is a bigger process than I can explain here, so I suggest that you get the shop manual for your ATC 200.
You can also take a look at the spark advancer. It is under the left top cylinder head cover. Make sure there's no rust in there and everything moves freely. The red dust you describe that came from the CDI box was most likely rust. So make sure everything is dried out (spraying some WD-40 in these places will dry them out and keep rust from reforming).
Finally, try a new spark plug, They are easily damaged or fouled and can cause backfiring when trying to start the engine. My best advice to you is check the above items - and get the shop manual.
By the way - the spark plug normally has about 50,000 volts fed to it from the coil. As long as you've got a nice blue spark at the plug, you're good.

SOURCE: Sunl 150cc Won't start

sounds like the CDI module. I've had it go out on a couple scoots I've owned. Take it to a shop and have them check it