200x swap to 185

[dustrunner]

nice sx with the astro kit... did you put that on ?

[Stephon_xr500]

I wish that SX was mine it belongs to the guy I got the green 200X from

[Stephon_xr500]

Well here is an update about a month ago I took the valve cover off to check our the valves I noticed that the decompression valve assembly was messed up on the 185 motor, so I decided to clean up the spare 200x head and valve cover I had. I disassembled the top end of 185, the cylinder and piston still look good so I replaced the gaskets and put it back together. I installed the motor checked for spark and won! I bolted the carb up and tried cranking it over with some staring fluid and got it to fire so it looks like I should be good to go. Hopefully I can put the chain and exhaust on this afternoon.
I'm gonna head down to the grocery store and pick up a 2 liter of coke to clean out the rust from the tank. I'll post some pics later today

[Stephon_xr500]

Last night I got the Chain on, Exhaust, Breather tube, the boot connecting the Carb to the Air Box so it should have everything it needs to run. I connected the tank from my other 200x and pulled on the cord for 15 mins or so but no luck. I have spark I was spraying starter fluid straight in to the carb, then I connected the boot because I have heard the 200x can be kinda picky when it comes to back pressure still nothing.

Here are a few pics of the progress a long the way:








What are the difference in performance between the Cobra stingers and the Supertrapp Stingers? I have both available and want to Build my other one up a little more, and this trike needs to be less aggressive.

[Stephon_xr500]

Well I think I need to rebuild the supertrapp stinger, I swapped it out to my newly rebuilt 200x and it wouldn't start I took off the plate and rings off the back and it started right up. I am waiting for a new fuel petcock and then I'll try to start the 185x again.

[Stephon_xr500]

I got it to run today! Man she was smoking! I'm gonna keep starting it and running it a few minutes at a time for the next couple days and see if it clears up. The head came off my other 200x it didn't smoke before I tore it apart.

[Stephon_xr500]

I rode it around my neighborhood yesterday, still plenty of smoke. I'm thinking it might be the valve seals. Time to take the motor out again and open it up

[KI4UJO]

As for your fuel tank, first clean it with a very strong degreaser, inside and out. You don't want any fuel residue left on it. Then, sand it down and respray it.

BTW, I like the metallic blue.

[ngunter2]

Can you take a picture of your carb and how it clears your rear monoshock? I have a 185 just like that. I bought it for 200 bucks and it needs a lot of work. I saw you talking about the 185 intake manifold and how you need the 200x intake manifold. I think the guy was running a 185 manifold because itcleared the shock by about 5mm. Now I know . Will probably be buying a new manifold this summer once i get out to that thing.

[Stephon_xr500]

Sorry ngunter2 the trikes across town right now may be a week or so before I see it again, I have an extra 200x in-take I can snap a pic of if you want

[trike savior]

nice project. if you did not chem dip the carb when you rebuilt it there is probably a little gunk where the needle valve seats on the carb body. i usually take a small phillips and spin it against the needle seat in the carb body to get it clean

[ngunter2]

Just get a picture of it on here when you get the chance. Im not going to see mine for months.

[Josh185]

Do you think the 200x motor would go right into the 185

[Josh185]

would you sell the 200x motor

[Stephon_xr500]

Well I finally got around to tear the motor down again. Rings were bad, I decided to hone the 200x cylinder I had and got a new 200x piston. I should have it done by the end if the week. I have been really busy riding my new 350x