200x cam chain adjuster makes engine shutoff.

[Honda200x.]

I noticed my 200x engine had a noisy cam chain so I ran it at idle and backed the 14mm bolt a few turns and when I did the engine shut off so i tightened it back up. Then when I tried to start it, it wouldn't. Then I held the gas and kicked it and it started so I turned the idle screw it fully and it would idle just like it did. But why would that happen? Then before I rode it(and I wish I had rode it so I knew it wasn't the valve adjustment) I adjusted valve clearance and I know I did it right, then rode it and the thing is sackless now, it has nowhere near the power it did and it has a high compression motor, an air filter, and an exhaust. What the hell it makes no sense!!!

[200X FT]

Check your timing. I have seen 3 of these engines slip timing due to worn timing gears and chains. If you're lucky, you didn't bend a valve and you can replace the gears and chain and be on your way. Check thoroughly, it will cost you If you don't.

[Honda200x.]

How do I check timing? And how would it happen so quickly, it was fine then it just happened when I wasn't riding it. And the engine was rebuilt awhile back. Also iI have probably only rode it about 10 minutes after the power loss and it still will do a wheelie but i have to pull it up hard and it has 110 psi of compression.

[200X FT]

First, remove spark plug. Then remove the caps on the left engine cover. Remove CDI cover and internals. Spin motor over to top dead center, check alignment marks on top cam sprocket and top inspection hole of the cover. The notch in the rocker cover should line up with the circle on the cam sprocket, in the inspection hole, the "T" should be visible in the hole. This is just to inspect timing to see if it has slipped. There are many specifics to resetting the CDI trigger and other things in putting it back together. I recommend a manual for further information. I hope it is of some help

[Honda200x.]

Yes alot of help thanks, I will try that tomorrow if it's not off what else wold cause it ?

[torque]

im not 100% on this but i think the timing chain ajustment is to be done with the engine shut off. i dont have my manual handy right now can some one confirn or deny this.

[hoosierlogger]

im not 100% on this but i think the timing chain ajustment is to be done with the engine shut off. i dont have my manual handy right now can some one confirn or deny this.

The engine is supposed to be running at an idle. I just checked the manual.

[Honda200x.]

Yes, it is when it motor is running, I did it off the manual directions, but the only thing I can guess is if tightening it threw it off timing like what was said earlier, but I don't know if the thing has aftermarket anything top end and I set the clearance to 0.003 and thats what its supposed to be so I don't know if its different for other top end mods but I doubt it. I will check timing tomorrow if it's not off then maybe it needs a rebuild or valves or something. I don't know what else it would be, the last thing I can think of is i've been messing with my jetting a lot because it was way off when I got it (he was running a 110 with an exhaust and an air filter and a high comp motor), so when you tighten your cam chain and do clearance does it change the way your engine burns fuel or needs it or something?

[torque]

The engine is supposed to be running at an idle. I just checked the manual.

good deal. i had it in my head the engine had to be shut off.

[Honda200x.]

Pulled the head open when I turn it over it sounds like air is coming through one of my four main top end stud holes, and the studs are in theres just space between the stud and the hole. What do I have to replace what could have caused it? I'm thinking that it's my gasket thats blown just to my stud and air is going up. Also I noticed my ignition timing was way off when lined up with the F, could that have caused it?

[Lamont]

If cam marks and flywheel marks do not align, you have jumped timing.

Easiest way to reset is to crank motor till timing mark is in the window on the cases, remove all the cdi stuff from under the cover on the head, loosen cam sprocket and remove gear, re-install bolt to turn cam over till timing mark aligns with head mark, then re-install the cam chain and assorted CDI stuff.

[Honda200x.]

i know but i havent gotten to my cam sprocket yet because i cant get the pulse rotator off it should just come out right? also my ignition timing was off

[hoosierlogger]

The reason it quit running was because the ignition timing was off. Then when you tightened the cam chain to the correct tension, you threw your timing WAY off. You probably just need to rotate the cam chain 1 tooth on the sprocket. I had an 84 200x that would not run with all of the marks lined up. I moved it 1 tooth and that fixed it.

[Honda200x.]

Thank you so much!