If you are getting continuous spark then your engine is turning over.

If you want to double verify this then remove the side cover over the flywheel and watch the monkey motion taking place.

You've got zero compression. The tester says this, plus you state the engine is turning too fast (another clue). I would take off the side cover over the flywheel, and the valve cover. Rotate the engine by hand until it is at top dead center on the compression stroke. Use the timing marks on the flywheel, and make sure your on the compression stroke (exhaust and intake valve closed as you approach the timing mark in the direction of normal rotation).

Remove the dipstick. Squirt in compressed air through the spark plug hole. You'll have to jury rig some kind of cork to seal the spark plug hole - try wrapping electrical tape around the air nozzle til it makes a plug that can be jammed in the spark plug hole.

Where does the air come out? Listen at the carburetor. At the exhaust. At the dipstick hole. Zero compression means you have a big hole somewhere.

 

Thanks Lynn I was hopeing you'd chime in on this sooner or later haha although it seems this time you've brought bad news!

So your saying my block is possibly cracked somewhere I haven't noticed? The oil level hasn't changed since I've had it. I haven't noticed any big holes... Hmm this sucks! It's been pouring all weekend so I haven't had a chance to take the engine apart to inspect it.. You mentioed to take off the dipstick , if I did this and blew compressed air into the block wouldn't it all escape through here anyways?

I'm very scared my motor is shot now! Tomorrow I will post some pics if the inside of the engine, may upload a video also. I know this is a noooob question but what side of the engine should I be un bolting? And by valve covers do you mean the chrome caps where I would adjust valves?


So if my engine is turning fine and I can't find leak where do I go from here? Can I make my own head gaskets? I gave gasket sheet. What seals should I check, I'm asking this in advance so I don't gave to check back to the forum during mid repair..

 

The idea is to inject pressure into the combustion chamber at Top Dead Center (TDC) on the compression stroke. At this point both valves should be closed, and if the piston/rings/cylinder are in good shape there is no escape route for the air. And, because you are at exact TDC, the downward pressure on the piston from the air (if you manage to get any) is straight down, and can't be turned into a rotational force on the crankshaft which would allow the piston to move down one way or the other and open the valves back up.

You must inject the pressure into the combustion chamber, which at TDC on the compression stroke is supposed to be a sealed chamber. The crankcase is vented to the outside via hoses, so injecting air there will just cause it to come out the vent hose(s).

When talking about "holes" I'm referring to big leaks of any kind out of the combustion chamber - not holes in the block like ones that will drain oil on the floor. Examples of combustion chamber major leaks: Burnt exhaust valve, bent intake valve, blown head gasket, cracked head, hole in the piston, scored cylinder/rings, etc.

The flywheel cover also contains the stator which has a cooling fan - at least on my quad. And this leads straight into the limits of my knowledge. I'm good at electronics, but I've limited experience with actual engine work on quads. Others may be much better than I am at this. I've worked on car engines, and rebuilt a few, but my knowledge on quad engines is only general in nature, and certainly not specific to your engine.

As far as the valve covers, anything that allow you to see the valves in operation is what you want.

 

Thanks again Lynn! Sorry to have to ask you to explain this but about finding TDC I can figure out, but how would I know the differance between Tdc and TDC combustion stroke? My luck my flywheel isn't labeled.

 

I'm betting your flywheel is labeled. How, I'm not sure yet. Get you covers off first and we'll see.

There are two TDC's in a four stroke engine - exhaust stroke and compression stroke.

Look here for a good animation:

Four-stroke engine - Wikipedia, the free encyclopedia