Author Topic: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK -- PIX ON PAGE 50 (Read 284295 times)

edwardmorris · « **Reply #975 on:** May 19, 2015, 04:47:54 PM »

Me too!

Question: Is there a trick to installing the fork gaiters? I got the lower end to snapnin place but can't figure out how to snap on ghe top end with that little chrome collar in the way...

oldhatt45 · « **Reply #976 on:** May 19, 2015, 06:19:52 PM »

Rafi,

In case you haven't gotten the gaiter back on the top, you kind of have to suspend the laws of gravity in the area of the front end for about 5 minutes.

No, really, just hold the chrome collar up and oriented correctly (such that the cut out is facing inward) and take a small pick and just go around the tube. Should be up in no time at all. That chrome collar (at least on my forks) just kind of floats but is pinned by the gaiter.

Also, in post #97 in my build thread (Page 4 toward bottom) I put in a little lip type washer inside the fork ear to hopefully keep the fork tube from rubbing or flexing against the inside of the fork ear.

Hope this helps,

Charlie

edwardmorris · « **Reply #977 on:** May 20, 2015, 12:19:28 AM »

Quote from: oldhatt45 on May 19, 2015, 06:19:52 PM

Rafi,

In case you haven't gotten the gaiter back on the top, you kind of have to suspend the laws of gravity in the area of the front end for about 5 minutes.

No, really, just hold the chrome collar up and oriented correctly (such that the cut out is facing inward) and take a small pick and just go around the tube. Should be up in no time at all. That chrome collar (at least on my forks) just kind of floats but is pinned by the gaiter.

Also, in post #97 in my build thread (Page 4 toward bottom) I put in a little lip type washer inside the fork ear to hopefully keep the fork tube from rubbing or flexing against the inside of the fork ear.

Hope this helps,

Charlie

OK, I'll give it a try, thanks. For the washer, I think part number 51622-292-010 Fork Rubber does the same thing, centers the tube inside the fork ear. I used NOS ones, so I think I'm covered there...

edwardmorris · « **Reply #978 on:** May 20, 2015, 10:17:22 PM »

How does this look? I'm still not convinced they're on all the way

Installed all reconditioned rubbers on the battery box. The Scorpion AGM has arrived, with not a shred of documentation. Is it ready to go or should I leave it on the tender?

edwardmorris · « **Reply #979 on:** May 20, 2015, 10:20:49 PM »

All new hardware for the engine mounting tabs, installed for now, need torquing down.

Question about the seat latch bracket: Does the frame ground terminal from the harness go between this bracket and the frame?

SOHC4 Cafe Racer Fan · « **Reply #980 on:** May 20, 2015, 10:21:46 PM »

The battery should be ready to go.

Restoration Fan · « **Reply #981 on:** May 21, 2015, 02:31:51 AM »

Rafi,
My Scorpion sat there for about 2 months before we were ready to put it into the bike. It arrived ready to go and held its charge just fine for the whole time but I did put it on a tender for the afternoon one day during that time. I don't think it needed it but I did it just to make sure.

evanphi · « **Reply #982 on:** May 21, 2015, 04:55:05 AM »

Tender/maintainer won't hurt it. Check with MM and throw it on tender while you assemble the rest during an afternoon.

edwardmorris · « **Reply #983 on:** May 21, 2015, 09:25:17 AM »

Thanks all, I'll leave it on the tender the night before I'm ready to start it up. The page turned, and I don't wanna miss on this

http://forums.sohc4.net/index.php/topic,126735.msg1686023.html#msg1686023

anyone have pix of how the seat lock bracket is installed on a 750?

Restoration Fan · « **Reply #984 on:** May 21, 2015, 09:50:00 AM »

Quote from: edwardmorris on May 21, 2015, 09:25:17 AM

Thanks all, I'll leave it on the tender the night before I'm ready to start it up. The page turned, and I don't wanna miss on this

http://forums.sohc4.net/index.php/topic,126735.msg1686023.html#msg1686023

anyone have pix of how the seat lock bracket is installed on a 750?

I can take you photos of mine when I get home from the office. But the seat lock's on the right side of the bike and the large ground wire grounds to the bolt on the left side of the bike that goes all the way through the frame and the engine. Is that what you mean by the frame ground terminal?

Davez134 · « **Reply #985 on:** May 21, 2015, 11:26:59 AM »

Quote from: edwardmorris on May 21, 2015, 09:25:17 AM

Thanks all, I'll leave it on the tender the night before I'm ready to start it up. The page turned, and I don't wanna miss on this

http://forums.sohc4.net/index.php/topic,126735.msg1686023.html#msg1686023

anyone have pix of how the seat lock bracket is installed on a 750?

What bracket do you have? I know there is a couple different styles. Do you have a pic of it?

edwardmorris · « **Reply #986 on:** May 21, 2015, 12:50:14 PM »

@Ron, I think the early Ks are different so your's might not be the same as mine, but thanks!

@Dave, found this one of it, but terrible angle unfortunately. It looks the same as shown in the parts fiche. It has a 6x12mm bolt which seems to thread into the spot where the ground terminal goes. There is also a threaded hole on the top but it isn't lining up quite right. I think I'll just have to install this once the harness is in place...

Davez134 · « **Reply #987 on:** May 21, 2015, 02:38:30 PM »

Ok, I see it. Mine is different, forgot for a minute that a have a K1 seat. Should mount the same though, just as you described. Mine didn't line up exactly at first, maybe because of powdercoat? But after some persuasion fits right on those 2 mounting points.

edwardmorris · « **Reply #988 on:** May 21, 2015, 02:59:55 PM »

Quote from: Davez134 on May 21, 2015, 02:38:30 PM

Ok, I see it. Mine is different, forgot for a minute that a have a K1 seat. Should mount the same though, just as you described. Mine didn't line up exactly at first, maybe because of powdercoat? But after some persuasion fits right on those 2 mounting points.

Excellent! So you DO have the harness ground between the bracket and the frame tab then, right?

Davez134 · « **Reply #989 on:** May 21, 2015, 03:05:50 PM »

Yep

That other wire is from my pamco ignition.

Sent from my iPhone using Tapatalk

edwardmorris · « **Reply #990 on:** May 21, 2015, 03:13:57 PM »

Thanks a bunch!

Just made arrangements with my PC guy to get the replacement stands done on short notice, hopefully that'll get sorted soon. I'll finish up the rest as is for now. I forgot to post about cleaning the replacement oil tank I bought from Bill. Already painted and ready to go, but inside did have some sludge that wouldn't come off with simple green and mineral spirits. Had to use up a can of CRC but its now spotless with visible bare metal. Lined up with oil, waiting on the drain bolt and washers to arrive along with the oil filter (had to special order the crappy Fram one at the auto store just to have something to fire it up first). Too much to do, too little free time

edwardmorris · « **Reply #991 on:** May 22, 2015, 10:08:59 PM »

Well, super pissed off that once again, USPS has managed to screw things up

Was expecting delivery of some NOS goodies, but looks like I won't be getting them until Tuesday

So for now, decided to move on using old parts and swap them out later. Missing oil tank drain bolt and washer, oil filter bolt, spring and "seat". For just getting the oil to the top end, I hope that missing "seat" at the oil filter won't pose a problem, I won't be firing it up until the rest of the stuff gets here.

Decided to tackle the oil tank, what a serious pain in the a$$ it was

All new breather hoses, I did locate NOS ones but the price was too much. Only difference being that the 12mm ID hose has a thicker OD than the NOS one, and the 7mm ID hose is only 0.2mm smaller than the NOS one.

NOS oil lines. I've waited a LOOOOOOOOONG time to open these up. This was probably the last set left at a stealership in the US. I had called so many of them and finally one in Utah had em both

All new everything for the rest of the set up.

edwardmorris · « **Reply #992 on:** May 22, 2015, 10:12:30 PM »

Installed new o-rings.

This is where that special "Washer Bolt" goes. Remaining three are standard bolts with washers.

Installed and torqued up to 90in-lbs! Really digging the shiny new zinc and alum ends on the lines, then the one step back

its virtually impossible to screw on the inner hose holding the tank in frame. Off they came

edwardmorris · « **Reply #993 on:** May 22, 2015, 10:14:42 PM »

New oil tank rubbers and their elusive special A bolts. The thread size is 6mm, but they use 8mm washer because of the shoulder. Also, almost forgot the crush washers for the oil lines

edwardmorris · « **Reply #994 on:** May 22, 2015, 10:19:11 PM »

Oil cap got a new seal. Gotta admit, I love the look of polished stainless much better than aluminum

Another pain was to get the tabs to line up right. The PO must have dropped the bike at some point as the top rear tab was really bent outta shape. Some pliers and shop towel protection, I was able to line it back up and get the tank mounted. Installed and torqued down for now. That old drain bolt looks so terrible with all new rest of it $:-\$

Too tired, will do the hoses tomorrow and fill it up after installing the oil filter. Then time to kick it over to verify oil is getting to the top end.

edwardmorris · « **Reply #995 on:** May 23, 2015, 09:28:46 PM »

By some miracle, the parts actually showed up! I was convinced they'd stay in Indy for the holiday but got a surprise this morning

New oil bolt, spring and seat, new oil tank drain bolt and washer.

Rechromed everything on the kickstar except the spring and ball. Would have done them too if I wasn't terrified of losing them.

Prepped up the loaner oil pressure gauge, big thanks to Ron/MCRider! Ignore the electrical tape

edwardmorris · « **Reply #996 on:** May 23, 2015, 09:32:38 PM »

Kickstarter installed, oil pressure gauge isntalled, oil filter installed (missing pic), breather hoses on the oil tank installed (missing pic), then started kicking the engine over with the valve train cover removed.

After about 30 kicks, top end got oil! What a relief it was to see oil gushing out nicely where it needs to.

edwardmorris · « **Reply #997 on:** May 23, 2015, 09:38:16 PM »

REALLY peeved with yamiya

Damn engine cover screw kit doesn't have the two long 80mm screws that are under the breather cover. Technically I guess they aren't cover screws but still. Went searching through my pile of the old ones and found them, thank goodness I hadn't recycled them just yet.

All that remains to fully close up the engine is to install the spark plugs. Getting there, waiting to get the stands back from PC before.

Question: How difficult is it to remove and install the center stand with the exhaust/HM341s installed?

evanphi · « **Reply #998 on:** May 25, 2015, 06:53:51 AM »

Quote from: edwardmorris on May 23, 2015, 09:38:16 PM

REALLY peeved with yamiya Damn engine cover screw kit doesn't have the two long 80mm screws that are under the breather cover. Technically I guess they aren't cover screws but still. Went searching through my pile of the old ones and found them, thank goodness I hadn't recycled them just yet.

This must be a problem with most bolt kits... mine didn't have them either (PO installed kit) and I have stainless sockets.

edwardmorris · « **Reply #999 on:** May 25, 2015, 08:19:13 PM »

Yea, probably. I gotta check my stainless kit from James Spillane to be sure, wonder if he included them.

Began working on getting the handlebar controls installed. All new screws for the control housings, and rechromed and zinced rest of it. All new throttle and clutch cables, grips and throttle shaft. All new sub-harness for the dash.

News:

Author Topic: 1972 CB750 Four K2 -- Rebuilt to NEW OLD STOCK -- PIX ON PAGE 50 (Read 284295 times)