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  1. Gra900

    Clutch cable holder

    Many people have been looking for the bit that goes at the end of the clutch cable. They are pretty much unobtainable and mine was looking like it might not last. I’ve managed to make one out of a bit of aluminium bar and thought you’d like to see. key was a cutting disc for ally for the angle...
  2. Gra900

    Pilot Jets - Carb - tickover-idle circuit

    So I’ve beng trying to get my idle circuit right, and have these three jets. Looking at the photo you would think they are increasing size L to R But actually they are L 42.5 from rebuild kit Mid 45 genuine Mikuni from Allensperformance R 42.5 Original No wonder it’s trial and error Any thoughts
  3. Gra900

    A few pics and plug colour

    Hi All, just an update really, got the charging sorted with a RR32 regulator/rectifier. Done 20 miles since back on the road Plug chop shows pale grey both sides, pulls like a train and certainly isn’t 27 hp. I think that figure is a unit transpose 27 kW = 36 hp and certainly feels like that...
  4. Gra900

    Carb linkage play - recommendation to fix

    Im just statically settingup carbs before refitting. I was getting the butterflies to open at the same time and noticed play where the actuator arm joins the butterfly spindle. When open there is about 4 mm play in the butterfly. See photos It looks like this a problem with where the bit circled...
  5. Gra900

    4G5 carb jets, pilot plugs, power and general

    Rebuilt most of the 400SE but found it had two carb related symptoms. First it’s tickover would slowly rise as it warmed up, so would only then tickover ok with the choke out. Second it would go above about 40mph. The PO had had the carbs rebuilt so I had assumed they would be Ok, but on strip...
  6. Gra900

    Regulator Rectifier which one is better? Celox or Electrex

    Hi Has anyone any experience of this product https://www.ebay.co.uk/itm/283705053557 which is £30 as opposed to this one https://www.electrexworld.co.uk/acatalog/RR33-Regulator-Rectifier-Yamaha-XS400.html which is £78 Is it worth 2 x the price? I have a 4G5 1982 XS400 SE, alternator coils test...
  7. Gra900

    First start after total rebuild

    Hey all, just got it running for the first time in what must be 10 or 15 years. Took quite a long time, but a few cc of Petrol in each cylinder did the trick. Sound like a sewing machine. Clutch was seized up but a bump start and some acceleration and braking freed it up. Only problem is it...
  8. Gra900

    It says IGNITION UNIT is this CDI

    I got this in the box of bits with my bike. Now mine is points, so a PO must have bought it. If it’s any use to someone I would swap for something, maybe a set of down pipes, electronic ignition or beer vouchers. It does look like someone has peered inside in the past
  9. Gra900

    Master Cylinder - the bleeder

    Hi All, I just fitted a master cylinder off an 2015 XBR 125, thinking it’s a single disc setup so should give good feel. It’s an 11mm piston. I’ve filled it up and bled about half a can of fluid through. No sign of bubbles at the bleed nipple. The calliper has been shop refurbished. However the...
  10. Gra900

    Petcock sealing conundrum

    part way through the rebuild and just about to fit the petcock Now the bike came with 3, as the PO had struggled to find the right one Two of them have the bolt holes too close together So I got everything in place, then realised the design of the oval O ring means the bolt threads are in...
  11. Gra900

    Wiring diagrams wrong

    just rewiring my 82 400SE, 4G5. The Haynes manual shows the black lead from the rectifier connected to one of the white stator leads. See photo. This is surely wrong, but it would be nice to know for sure so. 3 white to 3 white, red to batt and black to ground is surely the way to go. I’ve spent...
  12. Gra900

    Engine Alignment- looks off centre

    hi It’s a 82 SE, 4G5. Got the engine in using the front and rear mounts and all looked Ok. When I come to put the head steady on, looks like it about 8mm to the right from the gap on the RH steady bracket. LH side looks about ok. I only have one of the original bushes but have made up a similar...
  13. Gra900

    Fork rebuild how I did it

    hi, just rebuilt my forks and took some photos of some of the tricks which might be useful First, getting the top spring retainer disc out was tricky because one of them was rusted solid. I managed to get the circlip out and then had to drill and tap the disc and pull it out with M6 bolt and a...
  14. Gra900

    1983 XS400SE rebuild pics

    So I have had the bike since May, my nephew had done some great work, tank, side panels, front calliper and carbs, but was struggling with wiring and many bits and bobs. I bought it and stripped everything down except the motor which has only done 9000 mls so I reckon will be ok. A lot of posts...
  15. Gra900

    Lower rear engine mounts - need the rubber bushes

    the previous owner has lost or binned the rubber bushes that go on the lower rear engine mount of my 4R5. They just put some rubber washers in. I can’t find any in uk, does any one know where I can get them?
  16. Gra900

    Aftermarket brake master cylinder - any good?

    Hi, I just bought an in progress project which has an aftermarket brake and clutch. Now these retail at around £20, which seems very cheap for something your life could depend on. Has anyone got any advice on this? What experience have you got on them? See picture for a similar one on eBay
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