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    For Sale - 1981 Yamaha XS650 Bobber

    Custom XS 650 bobber built using Ardcore Choppers rigid frame. Every piece has been meticulously detailed. Motor is completely rebuilt and almost every part is new. One of a kind super clean custom, over $9000 spent on parts alone, no expense spared. Clean NC title in my name, current NC...
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    447 Cam Identification

    Just wondering if there is a way to identify cams by the factory markings and if there is any difference. The one that was in my 1981 engine has the number 2 cast into it. I picked one up off Ebay a while back and it has the numbers 447 and 3 cast into it. Is there any difference between...
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    First build nearing completion

    Got my first nearing completion. Picture shows bike before disassembling prior to powdercoating. It is an ardcore frame. And I rephased the motor using a crank and cam Hugh built for me.
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    Lean Angle and Peg Clearance

    I'm fabricating my foot peg mounts and wanted to see if anyone knew how much lean angle you need before the pegs hit. I have a rigid frame, so not much height change from the rear. Under braking the front would be a bit lower, but not sure how much at this point. I currently have my pegs...
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    Applying ThreeBond 1194 Sealer to the Engine Cases?

    Going to put my bottom end back together today and wanted to see if anyone has a preferred method for applying the 1194 sealer? The instructions say to apply as thinly and evenly as possible, using a brush or putty knife. Wait one minute, then mate the two surfaces. I don't want to have any...
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    277 Deg. Rephase Crank Sprocket

    I'm thinking of rephasing my engine since I have it down to the bare cases, I need new rods and will have to press the crank apart anyway. I've been reading about it on here and have a few questions. Can anyone post some good pictures of the cam chain sprocket off the crankshaft. I'm trying...
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    Wrist Pin Clearance

    I have an 81' that I have apart right now. Have some new pistons and wrist pins. The manual says the pins should be a snug fit in the small end of the rod. My pins, new and old measure 0.787" and the bore on the small end of the rod measures 0.790, so I have about 0.003" difference. Do I...
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    Drive Chain Tensioner

    Anyone have any thoughts on whether you need to run a drive chain tensioner. I've seen some bikes with them, but it seems the majority don't have them. I'm planning on doing a 4" stretch. just trying to plan everything out right now. Greg
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    First time Wheel Lacing Question

    I was hoping someone could point out my mistake. I did the rear wheel using the Fong Bros. thread with no problem. I used the same technique on my front wheel, except it has 64 spokes. I inserted the top spokes first, then found the 6:28 location and inserted the bottom spokes starting there...
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    BS34 Plastic Float Measurement Point

    I'm pretty new to the forum, but have been taking in as much information as possible while planning my build. I just picked up an 81' and am trying to get it running. I've read through the documentation in the tech section on the carbs, but didn't see anything that showed the actual...
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