200s head on 185s cylinder

[Truck Norris]

I broke one of the exhaust studs off on my 185s. I have a parts trike that is a 200s. Im wondering if i could just swap the head over or if id have to swap the cylinder too. I want to do as little wrenching as possible so im hoping i can just put the 200s head on. Thanks for any help.

[Dave8338]

It is a direct swap over. No need to change anything else.

[Truck Norris]

Sweet thats what i wanted to hear! Should i use a 200s head gasket or a 185s gasket. It will be a 200s head on a 185s cylinder

[prometheus]

I believe they are the same gasket set.

[Dave8338]

As mentioned, same gaskets. While you're in there, I would suggest replacing the valve stem seals, too.

[Truck Norris]

From what i found the part numbers on the oem diagrams are different for the head gaskets but the aftermarket gasket sets are the same. Something like this should have that valve seal included right? http://pages.ebay.com/link/?nav=item...d=291091630927

[Dave8338]

According to what the seller states below the picture, they should be in that "kit". They are not in the picture, however. Nor is that a gasket set (in the photo) for either a 185 or a 200. Picture is only for reference and a poor reference at that.

[Truck Norris]

Maybe this one? http://pages.ebay.com/link/?nav=item...d=400840320403

[Scootertrash]

If you want to do as little wrenching as possible, why are you taking the head off of 2 motors instead of one? Take the head off of the 185, have the stud removed and put it back together. Why crack open a motor if you don't have too?

As far as gaskets you don't need a full gasket set just a top end:
Go with Cometic and be done with it.

http://www.ebay.com/itm/Cometic-Top-...d23248&vxp=mtr

ETA: This ones a bit cheaper:

http://www.ebay.com/itm/Cometic-C702...-/311078344455

[Dave8338]

Myself, I would go this route. http://www.ebay.com/itm/TOP-END-GASK...8253e4&vxp=mtr

Save yourself some money. You're working on stock compression (9:1)

Just my .02

[Truck Norris]

If you want to do as little wrenching as possible, why are you taking the head off of 2 motors instead of one? Take the head off of the 185, have the stud removed and put it back together. Why crack open a motor if you don't have too?

As far as gaskets you don't need a full gasket set just a top end:
Go with Cometic and be done with it.

http://www.ebay.com/itm/Cometic-Top-...d23248&vxp=mtr

ETA: This ones a bit cheaper:

http://www.ebay.com/itm/Cometic-C702...-/311078344455

I dont want to spend the money to have the stud removed and put in when i could just swap them for free.

[Scootertrash]

How much of the stud is left sticking out of the head?

My local shop charges 20.00 for stud removal

[Scootertrash]

Myself, I would go this route. http://www.ebay.com/itm/TOP-END-GASK...8253e4&vxp=mtr

Save yourself some money. You're working on stock compression (9:1)

Just my .02

No offense intended, but Cometic gaskets are manufactured in the USA on US soil, not made in some other country and sold here as "Made in the USA".

They're excellent gaskets and support OUR economy. Win/win

[Truck Norris]

Theres actually alot left sticking out. Im goin to try and get it out myself. My old man has some sockets made to pull out broken studs. He has some crazy pliers that tighten as you turn them too.
What im wonering is if it comes out how do i get a new one in? Or could i use a bolt maybe?

[Scootertrash]

The stud threads into the head like a regular bolt.

This is what an exhaust stud looks like. These aren't for the 185, just a random google image:



Soak the stud in some type of thread lubricant, I prefer Kroil. If you have the head off try to stand it up so the lube can work it's way down the threads. Let it soak for a day, reapply then let it soak another day. Be patient and go easy. You can also apply heat with Mapp gas or and oxyacetylene torch, propane won't heat that head size chunk of aluminum very well.

Sometimes if you try to tighten it just a touch it will help to break the threads loose. I know it sounds nuts, but it does work. You just want to tweak it a bit, not try to get a full or even half turn out of it.

If you were up here I'd have you swing by and I'd try to help ya out.

Remember patience is the key. And maybe a swear word or two

When (if?) you get it out you can use regular bolts if you wish, just make sure they aren't too long.