400ex head pipe and carburetor there is a thread on here somewhere covers all of it.
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85 350x
83 200x-sold
×2 85 200x-sold
06 kx250f-sold
86 tecate-sold
86 tri z powervalved
85 BIG red
18 rmz250
87 lt80
19 ttr110
I am in love, I took her out for a ride today after an oil change and carb clean. I keep going to the shop and just starring at her still amazed that I finally own one. I'm not sure if my tri-z has just ruined 4 strokes for me but it seems like the thing is "plugged up" it doesn't seem to have a whole lot of power. I'll be ordering a new air filter , 400ex Carb and head pipe, hopefully she wakes up a bit
Does it smoke any? It may need a rebuild, or valve adjustment.
"Roll on 3"
RIP Ol' Deuce
"Long Live the ATC"Building: ATCr125xRiding: ATC200sx"I am not a mechanic, mechanics get paid for this. I do it because I enjoy it."
Start with a compression test. All of mine that were low on power needed a bore job. All 3 of them were on the original bore when I got them. A bore job and a 10.25 to 1 piston brought them back to life for about $200.
YAMAHA 450 HYBRID
85 350X- RED
85 350x -BLACK
86 350x-WHITE (with Goki)
85 250r
83 atc 70
84 atc 70
84 atc 110
09 yfz 450
2006 Arctic Cat Prowler
RZR XP 900
Thats a great looking 350X, the wait was worth it![]()
Current Trikes:
85 350x
P3 (x2)
Quads:
2003 Polaris Predator 500
1988 Yamaha Warrior
2003 Polaris Predator 90
Previous Trikes:
84 Honda 110 (parts)
85 Honda 110
85 Honda 200x
87 Honda 200x
85 Honda 250sx
KX 80 Trike conversion
Gone and missed:
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That price is doing the wrench work myself. Just down load the service manual pdf file. It's on this site somewhere, I think the members name is "oscar meyer", do a search. The piston kit from wiesco is all over ebay for around $130 including head an base gaskets. The bore job should run you between $50 and $70.
YAMAHA 450 HYBRID
85 350X- RED
85 350x -BLACK
86 350x-WHITE (with Goki)
85 250r
83 atc 70
84 atc 70
84 atc 110
09 yfz 450
2006 Arctic Cat Prowler
RZR XP 900
It desnt smoke at all, The PO did 0 maintenance on it judging by the oil. I'm going to adjust the valves today. It has a super trap on it, someone told me that they are adjustable, it seems like it runs good but there's blockage in the exhaust. I counted 13 plates on the end cap, is that normal? I don't know much about these can someone give me a quick rundown on how to adjust/how they work
350x's certainly don't normally run like they are plugged up. They actually have quite a bit of "pop" to them. They do get sluggish when the top end is wore out. They will start fine and run smooth, just won't have the power anymore.
YAMAHA 450 HYBRID
85 350X- RED
85 350x -BLACK
86 350x-WHITE (with Goki)
85 250r
83 atc 70
84 atc 70
84 atc 110
09 yfz 450
2006 Arctic Cat Prowler
RZR XP 900
I haven't had any time to tinker with the 350x . I noticed that the head gasket is leaking as well as the decompression leaver leaks oil. Im assuming that would cause a loss of compression the decompression leaver also doesn't function so it looks like I'll be taking he head off and investigating.
Where would I find new packing for my super trapp and what happens when you add/remove diffuser discs I've done some research with no luck finding info about these.
Supertrapp sells packing material through their website, eBay, other suppliers etc. Adding disks makes the exhaust louder and leans your air/fuel mixture. Removing disks quiets the exhaust and makes the air/fuel rich.
85 Kawasaki KLT 160
85 Kawasaki KLT 110
82 ATC 70
2000 Scrambler 500
The decomp not working is common in these trikes. Check to see if the lever by the kick starter moves when you move the kicker down. That's where most of them are broken.
YAMAHA 450 HYBRID
85 350X- RED
85 350x -BLACK
86 350x-WHITE (with Goki)
85 250r
83 atc 70
84 atc 70
84 atc 110
09 yfz 450
2006 Arctic Cat Prowler
RZR XP 900
your 350x should want to wheelie in first gear to forth just throttle no clutch. well that's how mine runs anyways. I only have aftermarket head pipe and k&n filter on mine. maybe your gearing has been changed too? I don't know about the super trap but when I have my dg rcm on I lost a lot of low end power but had gained better range on top end. once I went back to stock muffler it started feel better down low with the added back pressure