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  1. Replacement Engine Bolt Placement?

    Engine Discussion
    Hey all, I recently ordered a stainless steel allen bolt set for a CB450 1972. The bolts look great but I'm not exactly sure where they're all supposed to go. I'm not sure I'd trust the bolts that are currently in the engine as they might have been replaced improperly to begin with :p 14...
  2. Lone bolt leftover!!! Need some guidance.

    Engine Discussion
    I have been kicking myself in the head all night. I fell prey to the dreaded one bolt left on the bench after re-assembly of my engine after a lower end tear-down. I will post a picture of the bolt I have left, but first let me walk you through what I did, and what I've already checked. 1...
  3. Cold Exhaust. What could it be?

    Engine Discussion
    So I'm rebuilding my 72 CB350 twin. Just to give you some details on what I've done so far. Both cylinders have 150 compression, I was losing spark off a plug boot and I've replaced it, I've cleaned the carbs two or three times each, Both carbs also have new needle, seat, and float Points are...
  4. Pulling the engine -- advice on storage?

    Project Logs
    I am just about to pull the engine on my 1982 CB450T so that I can repaint the frame and do a through exterior engine clean. This will be my first time stripping down a bike, so I wanted to make sure I didn't do anything stupid from ignorance (I do enough stupid stuff for other reasons!).:D...
  5. CB450 1972 Shifting Issues: is it internal?

    Engine Discussion
    UPDATE: Upon further inspection of the clutch side, I found a piece has chipped off inside the right side crank case. Is this a serious issue that may have led to my shifting problem? On another note, what exactly is the circular piece that is under the chipped part? Hi all. Completely new...
  6. CM400 click in one cylinder - Tip end rebuild?

    Engine Discussion
    Hi! Seeking advice on what might be causing this click and what a top-end rebuild might entail. I've been riding my first bike, a 1981 CM400C, for the past 9 months and I'm loving it! It always had a slight "click" to the top-end of the engine, which I read was pretty normal for these engines...
  7. Dropped plastic camchain tensioner roller tab into crankcase...

    Engine Discussion
    Hello, I am in the process of installing a KA Performance cam chain tensioner on my bike and while I was removing the old roller assembly a series of unfortunate events led me to dropping one of the plastic tabs (item no. 11 in the attached image) into the crankcase... I rotated the crankshaft a...
  8. Squeak / smooch sound

    Engine Discussion
    Ive got a weird sound that happens at start up and low idle...every time I ride, but not in any way consistent. Best way I can describe it is if you pucker your lips and do an air kiss...that smooch sound, in a high pitch is what I've got. When it happens there's a slight dip in rpm, barely...
  9. Cylinders Stuck on

    Engine Discussion
    i'm in the process of tearing down a CB360t engine that was rescued from a scrap metal bin and have manage to get everything taken apart except for the cylinders which are stuck to the case. So far far I've tried pounding it with a rubber mallet, tapping a screwdiver at the base, and spraying...
  10. One cylinder sputtering

    Engine Discussion
    I recently got a '78 CB400 and it's been running a little jenky since day one. I've cleaned the carbs, did a quick oil change and slapped some new shorty's on there (I figured the back-pressure loss might be to blame as it was straight pipes when I got it) but it sounds as if the left cylinder...
  11. CL350 Compression readings: what should I do?

    Engine Discussion
    Hello, I recently rebuilt the engine on my '68 CL350. I lapped valves, honed cylinders, cleaned and measured pistons and rings (didn't remove the rings as they measured to spec according to the Clymer manual). I assembled everything with a healthy amount of engine assembly grease and new...
  12. CL450 Scrambler Cam chain stuck. Need help!

    Engine Discussion
    So I'm extremely new to this site and almost as new to working on motorcycles. The extent of my knowledge stems from working on mopeds, which are laughable in comparison to what I'm currently working on. My situation goes like this: I bought this CL450 Scrambler ('72) from a dude who's had it in...
  13. Honda CL350 rebuilt engine trouble shooting

    Engine Discussion
    I just finished putting everything back together, but my bike won't start. At least it looks better now... It will turn over fine - the engine is timed properly but something is off because I just get backfires. I am considering a few possibilities, but I would really like some alternate...
  14. WANTED: CB175 Complete engine/long block

    Wanted Parts and Bikes
    Hello everyone. I'm looking for a complete engine, or even just a complete long block for a CB175. Must have good compression, and be in good shape ready to run. Doesn't have to be sparkly clean or absolutely perfect. Just need something that will get the job done. Let me know what you have. Thanks!
  15. Engine seized, sitting for 20 years worth it?

    Engine Discussion
    I was able to pick up 2 bikes from a guy and one of the motors is completely seized and has been sitting for 20 years. I was able to remove the head but having a really hard time getting the pistons out. I am not able to crank the motor over at all. It is completely frozen. Just wondering if...
  16. Cl350 engine + misc

    Bikes and Parts For sale
    hello everyone, located in 19473 I have a cl350 engine that was going to go on a frame that i decided to sell. I bought the engine about 6 months ago and was told by original owner that it was a working motor. I also have a seat with some rips that i want to sell. $250 for motor $50 for seat...
  17. 1976 CB360 Opening bottom engine that holds rocker arms

    Engine Discussion
    Hi all, I have a 1976 CB360 and had a hole blown in my piston from running too lean and need some info on how to open the bottom portion of my engine that holds the rocker arms so that I can clean out any debris that may have gotten down in there (any special tools etc.). I've already purchased...
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