![]() ![]() The 200x piston is higher compression and not using it if you have the parts would just be stupid and a loss of power you will regret not having. There are a couple pics here of me doing it. It's very easy and takes only a couple minutes. While your at it and have the head off go one step further and remove the piston jug with the piston still inside and use that also on the 200 donor bottom. Mistake 2: Put the 200x head on the donor 200 bottom, I didn't at first and took the entire trike apart to bench the engine so that I could. Something like a 45 tooth would work best on the 200x seeing as it has smaller tires. If you use a normal 200 atc as the donor engine you need to use a larger rear like the stock size. I made the mistake of using the stock 200x rear sprocket with a 40 tooth front just to get it to fit at first. Any more and your performance could suffer greatly. The rear should not change more than two or three either from stock. ![]() Don't go bigger in the front unless you have to and if you do just go 1 tooth. The stock sprocket ratio on the 81' 200 is 11/47. Mistake 1: Sprocket ratio, get it right or your ride won't be. You need the mounts from the old ones! New decals from ATC Heaven made it pretty. To top it off we ordered new plastics all around from Maier Plastics for about 300.00 total. To bottom it off we ordered new rear 18" maxis razr mx tires that still have to be mounted. I use a 15 main jet in my stock 200x with a Krome Power 4 from DG. Use the proper hubs please! New axle, new hubs, new tires and 8 x 8 stock rims from my trike since I got new 10 x 10's from ITP.ĭG Power 4 exhaust and the 200x carb with a 118 main jet works well with the 200x head and new pipe. In the process of doing that we found the hubs were from a 400ex and were sloppy on the 200x axle thus ruining the axle and hubs. New rear and front axle bearings made it roll straight again but that was after we found it was wobbling around the shop. We welded a bar to the 200x foot pegs to act as a pivot and attached a linkage to the foot pedal and master cylinder. The 200x motors have the foot brake mounted to the engine but the old 200's dont. The rear brake was modified to use the old chrome foot brake from the donor trike to activate the brake. The gas tank that came with the 200x was in pretty good shape so my brother is pretty skilled at restoring them so he made it look brand new again, luckily there was little rust in the tank. We purchased new moose handlebars and mounted them. Just match up the wire colors and your halfway there. We used the entire electronics harness from the donor trike and made some minor modifications to get the new light to connect. The airbox will mount the same way as the stock would fit. By using the carb intake manifold from the 200x the x carb worked no problem. We used the stock 200x motor mounts with hardly a problem. The paint dried and a week later we got enough motivation to try and mount the engine. We sanded the frame and repainted it the correct colors. That made it really difficult to paint the swingarm and frame that were spraypainted the wrong red and ugly white scheme. The swingarm pivot pin(bolt) wont come out so we opted to leave it in. We had the entire trike stripped of everything but the rear swingarm in about an hour. The original 200x engine had been taken apart by the previous owner and never reassembled so it wasnt like my project was going anywhere. He sold his old trike body parts on ebay and that paid for the new 200x ones. Well knowing that there was no turning back now I proceeded to help him take his trike apart. After purchasing this 84' 200x for 300.00 and just letting it sit for a few months too long I found my brother in my barn dismantelling his mint 81' ATC200 with intentions of using the engine on my project trike. ![]()
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