Why haven’t more people done the 200x decompression mod????

[bigmike8791]

83-85 200x kick start gears are a known problem. The valve cover off a 185/200 (with decompression lever) will bolt up to the 200x (so I’ve read) and solve the problem of continued stress on the gears. Why haven’t I’ve seen more info on this? Seems like it would solve the problem

[shortline10]

The 200x cam won’t work with the decompression setup and the 185/200 cam is a lesser aggressive cam so your going backwards on performance .

[bigmike8791]

Thx for reply. Is this Wrong info??? http://www.3wheelerworld.com/showthr...sion-lever-mod. I hope not because I ordered my valve cover

[shortline10]

The valve cover will bolt on but you will need a cam designed to work with the decompression setup .

[bigmike8791]

Why special cam? The decompression lever hooks to exhaust rocker. When you move the lever it moves the rocker which presses down on the exhaust valve. Shouldn’t that work?

[shortline10]

The back side of the cam lobes I believe are machined smaller on the 200x and most performance cams so the lever won’t open the exhaust valve .
Go ahead and give it a try , maybe I’m wrong lol .
I’ve installed a lot of performance cams in the 185/200 series motors and it always caused the compression release to not function anymore .

[bigmike8791]

Hope you didn’t take my reply wrong? Wasn’t trying to sound like I know what I’m talking about lol. I’m just trying to understand how the lever really works? Not sure what you mean about the cam lobes being smaller. How does that affect the lever not pressing down on the valve? I’m trying to prevent the known failure of the kick starter. Appreciate the info!!

[Leevvii]

I asked the same question recently , and have a 200 es cover, so im keen to know how this pans out, PLEASE keep us posted. I would assume if it is possible to do it, alot of folks here would have already done it, im not holding my breath but it would be a very handy mod if it is possible. Sadly, i dont think its possible to check the operation of the lever with the motor disassembled, but i might be wrong, good luck. I also assume that the "cam" on the decomp'er uses the lobe of the camshaft as a "pivot" of sorts, to stop it flexing when rotated, so the smaller diameter camshaft lobe would prevent this occurring with the X cam, and hence, no decomp, just a guess.

[bigmike8791]

Take a look at your cover to see how the lever functions to see what you think. Anybody know the diff in hp between a decompression cam style vs 200x cam? I would think it wouldn’t be that Much? Also would the decompression style cam out of a 185/200e ect be a direct bolt in? To me it would be worth the swap to save the kick start gears. It’s never gonna be a speed demon lol. Maybe upgrade the carb/intake to make up the hp diff. Splitting the case much less finding the upgraded gears would be a pain in the a— . Mine makes a single click noise I’d say 1-2 times out of every 10 kicks, I assuming that’s my gears right? I know I’ve read something about the spring or something. Any info would be great!

[bigmike8791]

Found this on youtube. Wonder what that grove on the 200x cam is for? Sounds like the cams are interchangeable? Someone with knowledge plz chime in to confirm. If theres min performance difference and its a direct boltin im thinking im gonna put a decompression style cam in. https://www.youtube.com/watch?v=BbNiLAHBynw

[greenhuman]

If the 200x cam wont actuate the decomp rocker, try using an XR200 cam. They also have the decomp and some blokes use those cams as a cheap performance mod.

[bigmike8791]

That was my next question. Has anyone installed a xr200 cam in 200 and still had the decompression leval work? I’m hoping townline chimes in as he has installed a lot of cams in different machines. I really don’t want to buy one/install to find out that it won’t work. Im a bit confused on how a lower cam lobe will allow the lever to work?

[TexFest]

the xr200 valve cover also has a decompression, try that maybe, they look pretty cheap on ebay

[bigmike8791]

Ill check into that. Anybody with more info on xr setup let me know thx

[bigmike8791]

I just ordered a 200e cam with matching valve cover. Will keep you guys undated!