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  1. BigMacDouble

    Points Ignition Timing .

    Hey there . I have a 400e . Checking the points and have run into some issues . I’ve seen all the videos on setting timing for these but this seems different . The pic has the engine set to LF . But the points don’t make contact . Contact is actually where the blue line is so I can’t make an...
  2. BigMacDouble

    Rear Sprocket Mounting

    Hey there so I recently disassembled the rear wheel to replace the bearings. I Reassembled everything but this doesn’t seem quite right . Are the dampers supposed to slide into the sprocket slots ? I don’t think I put it on backward. manual says something about milled flat surfaces on crushed...
  3. BigMacDouble

    Rear Sprocket Mounting

    Hey there so I recently disassembled the rear wheel to replace the bearings. I Reassembled everything but this doesn’t seem quite right . Are the dampers supposed to slide into the sprocket slots ? I don’t think I put it on backward. manual says something about milled flat surfaces on crushed...
  4. BigMacDouble

    Ignition Coil Mounting

    Hey there, my bike came in parts and now that I'm mounting the ignition coils its not clear from any manual or pictures i could dig up how theyre suppose to mount onto the frame. Any one have any pics of theres? I have a 78 sohc if that chanmges anything
  5. BigMacDouble

    For Sale - 2 Engines Part Out

    Hey there. I have 2 engines that I'm looking to get rid of. 1 has almost all parts but is in pieces at the moment and dirty. The other is missing pistons and has a hole in the crankcase. Transmission cam and crank seem good and i have all the covers. Let me know what your interested in and...
  6. BigMacDouble

    Carbeurtor Butterfly shaft mods

    Hey there , I’m going back and working on these carbs. They’re for a 650 but I have the brackets for the 400. Only issue is the shafts need to move about 6 -8mm . I think I’ve got 3 options to get these to work. 1. cut away these red areas . Only issue is the piece may not be strong enough...
  7. BigMacDouble

    Swing Arm Bushing Shims

    Hey there , Does anyone have the thickness of the swing arm shins. Labelled 4 in the parts diagram . I fitted it without them and there’s the smallest bit of play . I searched through and could only find Chris saying they’re “paper thin”. I might need to find replacements. I have some that are...
  8. BigMacDouble

    Bigger Front Forks

    So the stock forks i have look to be suffering from some really bad rust pitting above the oil seals. I'm assuming this will cause some leaks but they're only sparse except for below where the steering head mounts. Is it possible to fit what i assume is xs650 forks on (35mm in diameter vs 33mm...
  9. BigMacDouble

    Trash Crankcase

    So I finally finished my engine using parts from the two better looking engines . I basically bought some guys garage worth of stuff which is why I have 3 engines and random 650 carbs. I decided to check out the 3rd engine just to see if I could maybe part it out or if there were things worth...
  10. BigMacDouble

    Splitting Crankcase WITHOUT removing cylinders and top end.

    Hey there , this might be a pretty dumb question. As you might notice from my other posts I’m pretty new to the world of motorcycles. I got a little too hasty and joined the crankcases before I had my hands on a torque wrench . Only after I had the entire engine finished did I remember I left...
  11. BigMacDouble

    Carb Mount Advice

    I’m having an issue getting the carbs to fit on my engine . I have two that came with the kit I bought . One is too narrow to fit on the boots and the other is too wide . Is there a standard for this ? I tried them with both throttle bars but mixing and matching them won’t works either . Is...
  12. BigMacDouble

    Tachometer Cable Engine Insert Stuck

    Hey spent a couple hours cleaning this cam cover then when I went to install notice this insert which was thoroughly stuck. I’m guessing this is aluminum on steel galvanic corrosion from the rust build up seen through the screw hole. So it’s basically welded in and there’s nothing much to grab...
  13. BigMacDouble

    Valve Spring Help

    Hey there, just joined the forum. I bought a 78 400E I believe completely apart recently . Made it the winter project while the restaurant I run is closed :(. Finally got to cleaning and installing the head. Valve springs were hammered out and then cleaned but now that it comes to reinstall I'm...
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