Topic: Mystery Stuff on my Bike...please advise

[bunghole]

I started the teardown of my '77 750K tonight.  When I removed the airbox, I noticed the following:

This looks like it should be hooked to something, but it aint.  It is right below the battery box:



This had nothing connected to it (bottom rear of engine):

[Hush]

Well we have enough 750 experts on here, won't be long now.

[bunghole]

Oh yeah.  Almost forgot...what the hell are these?



I found them on the floor after I removed my engine using the "lay the bike on its side and curse and fight for an hour" method of engine removal.  I had the clutch cover off, so I'm thinking they came from there.



I also learned that its a pretty good idea to remove the chain before attempting to remove the engine.  I ended up cutting the chain off.  I'm just going to jb weld it back on when I'm done with the rest of the bike .

[mystic_1]

The metal cylinder is most likely one of the knock pins that go between the cover and the engine.  One of the screw holes will have an area machined around it to accept this pin, which ensures that the cover is properly positioned on the engine.

Not sure about the rubber and the felt ring.

mystic_1

[bunghole]

Thanks Mystic.  They middle thing is actually hard plastic, not rubber.

[seaweb11]

My stock stuff is all gone now but......

1st photo,  front hose goes to top engine breather? rear one to stock air filter?

2nd Photo goes to oil tank.

[MrZxp]

From the shop manual... right click and select "view image" for a larger version...




Cheers, Phil

[bunghole]

Thanks guys!

I must have pulled the hose off the engine breather spigot when I pulled the airbox out.

It looks like a PO bypassed some of the vapor recovery stuff.  It's all going away anyway, so I guess I don't need to worry about it.

By the way, I said I had the clutch cover off.  I meant the shifter cover.

[mystic_1]

By the way, I said I had the clutch cover off.  I meant the shifter cover.

Yup, knock pins there too.  Two on the clutch cover, two on the shifter cover, one on the alternator cover.  All five are 8mm x 14mm, part number 94301-08140.

cheers
mystic_1

[mick750F]

It looks like a PO bypassed some of the vapor recovery stuff.  It's all going away anyway, so I guess I don't need to worry about it.

   So, you're just going to dump combustion byproducts into the atmosphere?  Or do you have another plan for recovery?

Mike

[bunghole]

It looks like a PO bypassed some of the vapor recovery stuff.  It's all going away anyway, so I guess I don't need to worry about it.

   So, you're just going to dump combustion byproducts into the atmosphere?  Or do you have another plan for recovery?

Mike

Just gonna dump them into the atmosphere.  I'm trying to speed up the human races doomed existence.

[scondon]

 Hard "plastic" bit may be the sealing rubber (#2 in this diagram). Blocks off a small hole in the case under the shifter cover.

http://www.cmsnl.com/honda-cb750k7-four-usa_model14395/partslist/E14.html

[Klark Kent]

30 year old rubber and hard plastic have a lot in common.  replacing rubber is good. 

the human race doesn;t need your help, but the doomed existence of the contents of your wallet will be slightly hastened by the mpg lost from the removal of the scavenging system designed for your bike.

good luck either way

[Aaron J Williams]

I ended up cutting the chain off.  I'm just going to JB weld it back on when I'm done with the rest of the bike

does anyone else see a problem here?

[Blueridgerunner]

I think (hope) that was a joke 

[c_kyle]

I ended up cutting the chain off.  I'm just going to JB weld it back on when I'm done with the rest of the bike

does anyone else see a problem here?

 

[Chad]

I used a zip tie to reattach my cam chain when I cut it off. I'm gonna fire it up tonight and take my newborn for a ride.

[bunghole]

If you guys think JB Weld is too weak, would it be better if I superglued it?  That stuff is pretty strong.

I do like Chad's zip-tie idea.  I'd probably use two though since the load on the drive chain is probably higher than on the cam chain.

[mystic_1]

I used a zip tie to reattach my cam chain when I cut it off. I'm gonna fire it up tonight and take my newborn for a ride.

Zip ties on a cam chain??  Talk about overkill.  Just use twist-ties like everyone else!

mystic_1

[mick750F]

Just gonna dump them into the atmosphere.  I'm trying to speed up the human races doomed existence.

   Gee...thanks for that. So if you're aiming to speed up the human race's doomed existence then I take it you're planning to procreate? Or have you already blessed the world with your spawn? Think they want to breath that crap? Do you have a car or truck or another bike? Are you ripping the pollution control systems out of them too? I hope so because doing it to just one bike is kinda like thinking small in the grand scheme of the doom of a species. 

Mike

[kpier883]

I ended up cutting the chain off.  I'm just going to JB weld it back on when I'm done with the rest of the bike

does anyone else see a problem here?

 

Wouldn't the JB weld section of the chain wear more slowly than the rest and lead to a tight spot?  This could cause excess noise or vibration.

[bunghole]

Just gonna dump them into the atmosphere.  I'm trying to speed up the human races doomed existence.

   Gee...thanks for that. So if you're aiming to speed up the human race's doomed existence then I take it you're planning to procreate? Or have you already blessed the world with your spawn? Think they want to breath that crap? Do you have a car or truck or another bike? Are you ripping the pollution control systems out of them too? I hope so because doing it to just one bike is kinda like thinking small in the grand scheme of the doom of a species. 

Mike

Dude, I am totally making kids left and right.  And they're not normal kids either.  They exhale dangerous carbon dioxide and fart methane all over the place.  I've removed all of their emissions reduction equipment.

I wash my truck with pure gasoline to keep it clean.  I cut down trees just for keeping the sun off of me and I paved my whole yard with blacktop just to keep things cozy and warm.

I poop on your Earth!  Shazam!!!!

[cleveland]

I ended up cutting the chain off.  I'm just going to JB weld it back on when I'm done with the rest of the bike

I think that is going to be new new signature!  That is the funnies thing I have ever read on this forum. 

[joecool14u2]

that ain't nothing, i got a wooden dowel for a front axle,  just make sure its hard wood, and i am currently using a sock for a filter, goes good with the smelly one, and this is no joke, i have a rubber cork in the carb on my cm250 cause some person popped out the plate over the jets, and also have used tampons to change the oil, the superbest ones, bolt wouldn't come out and i cut the grass last week and found three old bikes i forgot i had one even had a current tag, go figure

[mick750F]

Just gonna dump them into the atmosphere.  I'm trying to speed up the human races doomed existence.

   Gee...thanks for that. So if you're aiming to speed up the human race's doomed existence then I take it you're planning to procreate? Or have you already blessed the world with your spawn? Think they want to breath that crap? Do you have a car or truck or another bike? Are you ripping the pollution control systems out of them too? I hope so because doing it to just one bike is kinda like thinking small in the grand scheme of the doom of a species. 

Mike

Dude, I am totally making kids left and right.  And they're not normal kids either.  They exhale dangerous carbon dioxide and fart methane all over the place.  I've removed all of their emissions reduction equipment.

I wash my truck with pure gasoline to keep it clean.  I cut down trees just for keeping the sun off of me and I paved my whole yard with blacktop just to keep things cozy and warm.

I poop on your Earth!  Shazam!!!!

   Thank you sir. It's obvious that you took great lengths in choosing your username so that it would accurately reflect your personality. I'd like to think that you're just fooling around but I don't think you are so I'll leave this thread to you and your disregard. If you are fooling around then try using the emoticons. If you're not then maybe you'll wake up someday...or not. Doesn't really matter to me because as you've said, as a race we're doomed. Going to hell in a plastic handbasket.

Mike