200es

[haroldpo6]

Got a 84 200es that had water in the cylinder from guy leaving the spark plug out like a dummy and will need a new top end, rest of bike is in great shape. My ? is will a 250 top end fit on the 200es?

[MrConcdid]

Not to my knowledge, have your cylinder bored out and get a matching piston, but it wont be 250cc.

[ATC200X4716]

I would just bore it, new piston, and take the valves out to make sure they are free in the guides and the seats are not rusty and pitted or get the head freshened up at a machine shop.

[350for350]

MrCondid is right. These are completely different engines and the top ends won't swap.

[Jim mac]

are you sure there is no water in the crankcase? jim

[haroldpo6]

No water in crankcase

[shortline10]

The cheap route is to buy one if these kits , you’ll have to make a cover /cap for the different style chain tensioner but otherwise it’s a bolt on kit .
https://www.ebay.com/itm/154622730624?_trkparms=ispr%3D1&hash=item24003ba180:g:Q5QAAOSw5pxhTEFp&amdata=enc%3AAQAGAAACoPYe5NmHp%252B2JMhMi7yxGiTJkP rKr5t53CooMSQt2orsStEKTPzZMfQmny3knR97t0F9UmlogjDP ZwgXi%252BZGo72KoX0HbyAc6siYzgz%252Bm%252BqqI7x7h9 J%252FpQyWAlmuVjenRGJTpKNVz2wPmBCNoVETU73B0UlxL6oW c99RiEVURlCerqYatKpcWyEhVG1h8IFlSNwsyMrvufLpTERH4c yP8j%252B4zCrej1YjMves%252BMWlBLu6Nrs4mFfkkRaA%252 BlXeJEaPMk8pzbClBZjZvXKlEKYPlq8RU7f4VeXAPRTaG4OqZg gljO8jQa2AGWMKrbyASaAF22j56IALI8TcFwsazpeJN1x6jCsP nTN1TD5K67CM647lweeaDOLTAeWvA3%252BTKqrmk7EU9yezv9 LqPClNeys9Bcba9utzt%252FaiFJvz2ZsZ32Hg2ehuUiJTblic e7J6vibAGR50o%252B%252Fnyx8Cd4t0nuEemtdCdYVA6fFLr3 3OuwkJ3gcYfPFjpbIJnf4diSLuYr%252BcyAOV8evz2PPLgVSo ufpibru3JaVttzz53av2%252BwQQrw8BSOC%252B5UEXtZ2P3R p%252FaYDfXc6eQxDaaLWCQep7PoceqbTloSmwcO0vgIplNxUQ NoEejePD4GDCo%252BcFcG5futpY4Hm6qwbZXeI06kUrVMrZUu GQCLkux%252FclwsTVzbi562xq0r1miltT479qxD1PVsFPEOOT 2khDetPiT%252BLBhvK55Co2hMm%252FP5FTe5s%252FXaPHSs 9avBHr9c2y1N3HQX%252FP2hQHjMp9NmBljK8IROh0lwau1eTe kFXvpGYP1etnPMIVq%252BErgTULxlVaAjvKtcS9MTtIoINDgf EaY9M1fvKvcUCHekSs645lToV2Y4uDUSG7KBhlI6BH3LcL2c5F JWbPD2IwV6w%253D%253D%7Cclp%3A2334524%7Ctkp%3ABFBM 0MqY6Zdf

[haroldpo6]

Are you talking about the cam chain guides?

[350for350]

If you're referring to post 3#, then it's talking about the valve guides.

[haroldpo6]

No Post #7 about making caps/cover for tensioner

[shortline10]

The aftermarket cylinder is universal, it needs a cover over the hole in the side of the cylinder .
Their are a few threads on this site were these cylinders were used .

[haroldpo6]

Found it, thanks everyone.

[haroldpo6]

Update, i got one of the ebay cylinder/piston kits and this is what i found.
Bore is 63.5mm compaired to the oem that is 65.00mm
New piston does not come to top of cylinder, is down 4.80mm down in bore on the new cylinder.
So this tells me it will be lower compression and less hp from factory.
How much difference will this make?

[Jim mac]

if its that far in the hole, I'd just look for a used cylinder, correct me if I'm wrong but a 200s cylinder might swap. jim

[shortline10]

I have rebuilt a few motors using these kits as well as others on this forum, yes the piston is a little lower by about 4mm but their was no noticeable difference in power .
Also its a domed piston were the factory piston is dished so the compression is equal if not more than the factory piston .





Update, i got one of the ebay cylinder/piston kits and this is what i found.
Bore is 63.5mm compaired to the oem that is 65.00mm
New piston does not come to top of cylinder, is down 4.80mm down in bore on the new cylinder.
So this tells me it will be lower compression and less hp from factory.
How much difference will this make?

[haroldpo6]

Thanks, i'll go ahead and use it.

[haroldpo6]

The kit has the rings, but no info. I have 1 silver ring w/marking and 1 black ring w/marking and the oil rings. I guessing the black is the 2nd ring down and silver on top, w/ markings facing up, is that right?

[shortline10]

All marked rings face up , silver is your top ring , black is your second ring .
Do a quick google on how to install them correctly and how to position the gaps , it’s very important .

[MrConcdid]

Here is a visual
https://youtu.be/KBnmd-v3mLA

[haroldpo6]

No marks, know how to gap

[haroldpo6]

Update, everything went great until i try to put timing chain on, to short. Come to find out the china cylinder is taller than factory cylinder. After wasting lots of time and money i'm having the factory cylinder bored and ordering new piston/rings. Might be a china cylinder out there that will fit, but not this one. Has 7 fins like the factory one. Out