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1-19 of 46 Results
  1. Fuel Supply and Carburation
    This thing will not pull past 3500 rpm no matter what i do to it. Cleaned the carbs a gajillion times and it still runs the same. It has great spark, brand new cdi from rexs speedshop in the UK, advance system works, spark doesnt go whack when bike cuts out. I think its running lean because the...
  2. Project Logs
    Can anyone measure cb400t piston rings thickness? Where i live piston rings for my 1980 cb400n cost 65$ per set for one cylinder. I'm looking for rings from other motorcycles but i don't know how thick piston rings should be, in manual there is only clearance between ring and groove but no...
  3. Tires, Wheels, and Brakes
    Does anyone know where I can find a front brake caliper piston for a 1978 CB400T II? If my measurements are correct the piston measures 38mm x 38mm. Thanks
  4. Member Introductions
    Roddio here, from San Diego, CA. Retired. Plenty of time on my hands. Needed a hobby, so... I picked up an '81 CB400t for almost free. Bike as sat for an obviously long time. Former owner said it stalled and wouldn't start. Put it in gear, rolled it back and forth, hit the kickstart a couple of...
  5. Miscellaneous Discussion
    Guys, I need some info about VIN. I bought 1981 CB400T. The title says VIN JH2NC0304BMxxxxxx but the stamp on the neck says NC0304BMxxxxxx. Where can I find the missing JH2? Thanks, Eddie
  6. Wanted Parts and Bikes
    Hi I am from South Africa, desperately looking for spoked rims that would fir my Honda CB400T. Would really appreciate if someone could help me out with this, or even point me towards a place a would be able to find it... Thanks.
  7. Mechanical Issues
    Hi, I am new to this site and also kind of new to 'bike mechanics'. Just bought a project bike - 1989 Honda CB400t/hawk. In the videos it ran great but the prev owner informed me that the Kickstart wasn't returning. So I opened the Kickstart case cover and with it open the Kickstart returns...
  8. Member Introductions
    Hi all! Glad to say I am a member of the Honda twin family. This forum was super helpful when trying to work out if I should pick up this bike or not. This is my first bike. It's a 1980 CB400T with 3600 km on the odometer(!). Third (post-rebirth) owner. Guy I bought it from got it from the...
  9. Frame, Suspension and Steering
    Hi everyone, When I bought my bike (81 CB400T Nighthawk) the forks had some light oil streaking (but no pitting or scratches) so I'm wondering exactly what wearable parts I should be replacing when I rebuild them (also planning to repaint the bottoms). There doesn't seem to be any full fork...
  10. Electrical Discussion
    Hi there, So I picked up a Cb400t that hasn’t been registered for 9 years. Guy said he dumped it once because of the sticky drum brake and was too scared to drive it again. It doesn’t have a battery, so I attached an external 12v battery directly to the leads. Electric start fires, but no spark...
  11. Engine Discussion
    Hey, I have recently purchased a 1978 CB400T Frame and engine and its missing the exhaust. I live in Australia and these things mega rare and parts are even harder to get. What other bikes exhaust will fit on this thing? I am happy to customize a bracket for it, but when it comes to Exhausts...
  12. Project Logs
    Hello everyone. First post. First cafe project. Picked this beaut' up for $600 in the Seattle area, 1978 Honda cb400T. Same make and model of my first bike I learned on when I was 16 (now 32) so there is some sentimental value. I know this frame isn't the most conducive for a cafe, but I have...
  13. Member Introductions
    Hi all my name is Andy and I'm from Queensland in Australia. For about two years now I've been fixing up and customising a 1978 CB400T. I have listed below the modifications and upgrades I have made and included a before and after photo of where the bike is currently at. I've run into some...
  14. Engine Discussion
    Hey all! I'm running into a strange issue and I'm wondering if anyone has any ideas. It seems like cam chain on my 78 CB400T is losing tension after only about 20 miles of riding. I adjusted the valves and cam chain in that order following the FSM this spring. When I did the valves, I pulled...
  15. Member Introductions
    Hey everyone, I recently was given a 1978 CB400t by a friend who didn't have time to work on it. I am a mechanic for a golf course, so I took it on as a fun project. My friend had it in pieces, and I have recently really dove into it. It doesn't have carbs, so I need to locate those, and replace...
  16. Miscellaneous Discussion
    Hey all, recently got my hands on a Honda cb400t. I'm completely new to motorcycles, parts, and building. I've come to this forum to get the basics and possibly develop my skills along the way. The bike was in pretty rough shape when i got it and I've just been doing research on parts and...
  17. Engine Discussion
    Hey All, I'm completely new to working on motorcycles, but I wanted to start learning from scratch. I bought a '79 CB400T that needed some love. Replaced the tires, drained the oil, replaced the rubber pads in the rear wheel and got to the sprockets. I bought a DC chain kit (DC-K129) from a...
  18. Project Logs
    Hi everyone, I thought I had better post some pics and details of my cb400t rebuild. It has taken 6 months so far and been enjoyable to turn a rusty POS into something nice, although I think I will start with something cleaner for my next build. Everything has been cleaned/rebuilt/sand or soda...
  19. Manuals and Technical Documents
    Hey all I just got into the twin game, if not the whole motorcycle scene with the purchase of my 1978 CB400T. It's gonna be my little winter project. Anyway I just wanted to know what manuals to get. I see there's a Clymers and maybe a hanynes? Then when looking around here people are sending...
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