200x carb question(s)

[riverrat]

1. Has anyone tried out these $25-30 ebay replacement carbs?
2. Should I go with a bigger carb than stock? I have a pipe, and some port clean up.
3. Stock is 27 or 28mm?

[yaegerb]

Stock is 24mm. Those cheap carbs are just that....chinese knockoffs. With the mods you made you can use your stocker and change your main to a 110 or 112. Stock main is 108. Adjust the needle clip as necessary. You should be good to go.

[Jcode]

Stock main is 110 on 84-85. 83 was 108.

[yaegerb]

It would probably be good if we knew what year we are dealing with riverrat.

[Jcode]

Says 84 in his sig, so YOU were correct, but just in case...

Also possiblity an 83 carb could be on their without someone knowing there's a difference. It's like P68A for 83 and P68B for 84-85 on the side of the carb. Same carbs just one was 'revised' with larger main. Rest of the specs for the carbs are identical.

[riverrat]

It is a 84. Just did a rebuild, 10-1 piston. It had problems before I did any work to it, starting. When it is cold, takes too many kicks, then it won't come off idle, it stalls. It won't run with the choke on. Once it is running, it runs great. But if it stalls, it could take 100 kicks to get it going again. Playing with the choke sometimes helps, sometimes not. I took it apart a few times to check it out and clean it. I have two 185 carbs over here, should I try one?
I doubt the main is too small, by reading the plug, I could go a little leaner.

[yaegerb]

have you tried to rebuild the carb yet?

[riverrat]

I took it apart a bunch of times, didn't see any reason to rebuild it.

[1984 honda 200s]

Id upgrade the pilot jet, see for my 200s with rebuilt topend and exhaust, i went from a 35 to a 38, stock main... Amazing results.
Id try to go a size to 2 larger so maybe a 112 and go from there....

[yaegerb]

yeah, it sounds like you need a rebuild. You can get one for 15 bux. Not a bad price for good insurance. They may look good, but years of wear still takes its toll.

[4x4van]

Never tried one myself, but I've heard both good and bad about those chinese carb knock-offs. Kind of a hit/miss proposition. One person I know bought 2, for identical bikes. One worked flawlessly for him, the other he never could get it right; just continued to have weird jetting issues that could never be solved. My brother also bought one for an old mini-trail 70, never could get it to work right either; he eventually used most of the guts out of it in the old stock carb, and was finally able to get the old carb working. I think that low quality control on the ebay carbs results in too much variations in the carb body, and that can result in problems that no amount of tweaking can overcome.

[oscarmayer]

ok loo,, old carbs wear out the slide and needle seats. the tiny o-rings in the needle seats also wear out. you need to rebuild it. it's not a batter of " it doens't look liek it needs it", it's a matter of it needs it" because it's dam old and rotten and worn. rebuilds are easy to do. order a $24 ebay rebuild kit with the "pre shaped bowl gasket" not the round one that's a pita to use and your set. shoudl take you all of about 30min-1hr to rebuild it once off the bike. (i can rebuild one in about 30-40 min start to end including removing from bike, but i've worked on a few of the ATCs. ;) )
make sure you use gunk carb cleaner. that cheapo carb cleaner is jsut that crap. it won't clean the impulse/idle tube the idle jet or main jet sits in well.

[riverrat]

Imma have to give it a try. I toook it all apart again, and no luck. The 185 carb I have is the same exact thing except it does not have the ability to change jets without removeing the bowl. It was also very corroded, so I said forget it. I have one more I might try. In the mean time I will order one. I've worked on it enough I can do it in under and hour. I cleaned it out thoroughly with tip cleaners, carb cleaner, and compressed air.

[riverrat]

Well got the rebuild kit. It was missing the spring/washer/o-ring on the needle for idle mixture. The kit came with 2 small o-rings, can't figure out where the second one goes. I put it together anyway, and still no luck. By chance, I tried out a different trigger from a 185, and accidently crossed the wires (which would advance timing greatly) and she started right up, but ran like crap. So I started playing with timing after fixing the wires. Seems like if I advance it off the charts, it will start and run like crap. If I back it down while it's running and time it, it gets better, but then stalls and won't start again. I am wondering if I got the cam off a tooth. I've had the worst luck with this thing. Sounds like I don't know wtf I am doing. Also is it unusual for lots of air/oil to be spitting out of the timing hole? It shouldn't have any excess blow-by because I just rebuilt it, and it all measured up nice. I even had someone else check it to be sure, after the deal with the wrong piston.

[yaegerb]

Interesting. Here are a few things i can think of that could be the culprit. Sparkplug gap, fuel line obstructed or petcock not working correctly, valve clearance, head gasket or intake manifold leaking and last would be timing or CDI is failing. Is your spark nice and big?

[riverrat]

Gap is .025, I switched cdi and coil from my 185, same thing. Gas line is all good, got plenty of gas. Head gasket should be fine, when it runs it has power. Intake manifold could be bad, not sure really. The spark is not really that big, kind of sporatic, that is why I switched triggers. I am also assuming the 185 stuff works on the 200x. I am wondering if the stator is weak. I do remember some confusion putting the cam chain on because the marks were confusing.

[yaegerb]

yeah, I don't know if the 185 is compatible with the 200x. Shortline10 is an expert with 185 stuff, he would know. I would try a different 200x trigger. If the spark is sporadic, I would get that right first. Make sure the "O" on the cam sprocket is lined up at exactly 12:00 with the "V" grooves on the rocker cover WHILE the "T" on the flywheel is aligned with the "V" on the top of the flywheel cover hole. Once that is set perfectly, you need to ensure that the "F" on the flywheel and advancer is aligned....(there is an article on this site for how to align the "F"). Search for 200x timing.

[riverrat]

I don't think the 185 is complatible. But, I have another 200x here, and I started swapping parts. After I double checked my cam chain timing, which was good. After much playing around/swapping stuff, I think it was the pluse generator. I got it running much better, it started up quick and ran good. However, after putting new ends on the wires, and putting it back together, it wouldn't start again. I got worn out today, I will have a look at it tomorrow. My dam leg is sore from kicking, and I just got a herniated disc so I am in a bit of pain to be kicking this thing over and over.

I also noticed another thing, the flywheel looks out of round when I see it spinning in the hole. I wonder if that has anything to do with it.

Oh and BTW, the first pulse generator check out fine with my ohm meter.

[yaegerb]

If your flywheel is out of round, that's probably not good. You can pick up another flywheel for 35 bucks on ebay or swap out your other flywheel. Its pretty simple and fast if you have the flywheel puller tool.

[riverrat]

Yes, I rebuilt the whole motor, I think I can handle changing the flywheel, lol. Hey, thank you for all your help too. Sometimes even if the person you are talking too doesn't really help, through talking ti makes you try other things. This thing is really kicking my ass, I tried a bunch of things again today, including swapping carbs from a 185, but that carb looked like a pos, so I didn't really learn anything. I might try one of these ebay carbs.

[yaegerb]

Glad i didnt help...lol. no i understand a bout talking through things. Try the ebay carb. Its cheap and may work for you. Best of luck!

[riverrat]

oops, I didn't mean that. You helped. Everything I check brings me one step closer to the problem. Sometimes it is multiple problems. This thing has been a heartache ever since I bought it. I am stupid determined.

[yaegerb]

No worries, I know what you mean. Get all the "advice" in the world and none of it helps. Sometimes though, it makes you think of something else that may be wrong.