Author Topic: What did you do to your bike today ? (Read 3163042 times)

PeWe · « **Reply #20126 on:** July 07, 2015, 02:20:30 pm »

The pressure plate is still common as NOS part. Too easy to crack it when tighten or losening the bolts too much each time. Step by step. 1/4 turn each time on the bolts.
I know a guy that plan to produce some in steel.

5thofhonda · « **Reply #20127 on:** July 07, 2015, 02:24:59 pm »

Every website and dealer I called said it wasn't available. I found one on eBay, but for $100

flybox1 · « **Reply #20128 on:** July 07, 2015, 02:28:32 pm »

Quote from: 5thofhonda on July 07, 2015, 02:12:43 pm

Gotta turn those in equally, 1/2 turn at a time, around and around....
let me check a few places...

5thofhonda · « **Reply #20129 on:** July 07, 2015, 02:30:09 pm »

Thought I was. Partzilla says it's unavailable.

flybox1 · « **Reply #20130 on:** July 07, 2015, 02:32:32 pm »

Here are two clutch listings for $45 or less, and the part is included.

http://www.ebay.com/itm/1975-Honda-CB750-K5-SOHC-Clutch-Basket-Assembly-/191603703283?fits=Make%3AHonda&hash=item2c9c787df3&vxp=mtr

http://www.ebay.com/itm/3016-Honda-CB750-CB-750-Clutch-Basket-/130832805018?hash=item1e763e2c9a&vxp=mtr

5thofhonda · « **Reply #20131 on:** July 07, 2015, 02:35:16 pm »

Quote from: flybox1 on July 07, 2015, 02:32:32 pm

Here are two clutch listings for $45 or less, and the part is included.

http://www.ebay.com/itm/1975-Honda-CB750-K5-SOHC-Clutch-Basket-Assembly-/191603703283?fits=Make%3AHonda&hash=item2c9c787df3&vxp=mtr

http://www.ebay.com/itm/3016-Honda-CB750-CB-750-Clutch-Basket-/130832805018?hash=item1e763e2c9a&vxp=mtr

Lifter plate has a broken corner according to description, unfortunately.

oldhatt45 · « **Reply #20132 on:** July 07, 2015, 03:32:37 pm »

Not the second listing.
Take another look.

Charlie

Desert-SOHC · « **Reply #20133 on:** July 07, 2015, 03:44:25 pm »

Found and repaired the shorted oil sender wire where it comes through the starter well into the counter sprocket area. I will in the future replace the sender and wiring to it along with the pigtail to the alternator and such.

5thofhonda · « **Reply #20134 on:** July 07, 2015, 03:47:01 pm »

Ah, sorry. I originally saw it on my phone, so it just mashed the two links together and it just looked like one. $18 shipping is going to hurt though.

Terry in Australia · « **Reply #20135 on:** July 08, 2015, 03:23:47 am »

Quote from: 5thofhonda on July 07, 2015, 02:12:43 pm

That's a common problem, especially if you're new to CB750's. If you know someone with a TIG welder it can be repaired, I've got a couple here that have been repaired and still work. Cheers, Terry.

5thofhonda · « **Reply #20136 on:** July 08, 2015, 09:48:42 am »

The best welder I know doesn't have his own equipment, lol. I'll definitely look into it though. I went ahead and ordered a replacement, but it would be nice to have a backup.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #20137 on:** July 08, 2015, 10:18:30 am »

Quote from: 5thofhonda on July 07, 2015, 02:24:59 pm

Every website and dealer I called said it wasn't available. I found one on eBay, but for $100

Way too much. Keep looking. I just picked up a complete 77 clutch INCLUDING that for ~ $35. Just depends on how big a hurry you are in.

Check with Bill Benton.

PeWe · « **Reply #20138 on:** July 08, 2015, 10:46:50 am »

NEW cost less, about 55 Euro with shipping
http://www.ebay.co.uk/itm/Honda-CB-750-Four-K3-K6-K7-Druckplatte-Kupplung-Plate-clutch-lifter-/321644039119?pt=LH_DefaultDomain_77&hash=item4ae37a8bcf

5thofhonda · « **Reply #20139 on:** July 08, 2015, 11:33:55 am »

I snagged a complete K4 clutch basket last night off eBay for $53 shipped to my door.

MCRider · « **Reply #20140 on:** July 08, 2015, 11:35:06 am »

Quote from: flybox1 on July 07, 2015, 02:28:32 pm

Quote from: 5thofhonda on July 07, 2015, 02:12:43 pm

Gotta turn those in equally, 1/2 turn at a time, around and around....
let me check a few places...

That's true. But it also doesn't matter how careful one is tightening the bolts, if the splines from the center hub are not meshing with the splines from the pressure plate, that piece will break everytime.

Can't tell for sure from the picture, but the 4 posts on the pressure plate seem to be too far into down to make me feel comfortable that the splines are meshed.

There are 4 ways it can go. Only 2 are correct. 50/50 chance if you're not looking.

flybox1 · « **Reply #20141 on:** July 08, 2015, 12:25:45 pm »

Quote from: MCRider on July 08, 2015, 11:35:06 am

That's true. But it also doesn't matter how careful one is tightening the bolts, if the splines from the center hub are not meshing with the splines from the pressure plate, that piece will break everytime.

Can't tell for sure from the picture, but the 4 posts on the pressure plate seem to be too far into down to make me feel comfortable that the splines are meshed.

There are 4 ways it can go. Only 2 are correct. 50/50 chance if you're not looking.

Good pick up MC. No springs...maybe? $:-\$

MCRider · « **Reply #20142 on:** July 08, 2015, 12:45:01 pm »

Quote from: flybox1 on July 08, 2015, 12:25:45 pm

Quote from: MCRider on July 08, 2015, 11:35:06 am

That's true. But it also doesn't matter how careful one is tightening the bolts, if the splines from the center hub are not meshing with the splines from the pressure plate, that piece will break everytime.

Can't tell for sure from the picture, but the 4 posts on the pressure plate seem to be too far into down to make me feel comfortable that the splines are meshed.

There are 4 ways it can go. Only 2 are correct. 50/50 chance if you're not looking.
Good pick up MC. No springs...maybe? $:-\$

Yes, lack of springs confuses the view. IF one puts a bolt in and pulls the pressure plate into the center hub, one can feel the splines mesh.

Otherwise the assy should be pulled and checked. This is covered in a multitude of threads on breaking lifter plates. I'l see if I can find one.

5thofhonda · « **Reply #20143 on:** July 08, 2015, 01:34:26 pm »

I took the springs out after it snapped. No bolts are attached in the picture either, the plate is just resting in the basket. I'll have to see if I can figure out the correct orientation. It seems lined up the way I had it, and I just got a little overzealous on rotating the 1/2 turns.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #20144 on:** July 08, 2015, 05:20:18 pm »

So you are getting the complete mid-model clutch and basket. What year did you say yours is? The 77/78 are pieced together differently and eliminate the inherent clutch rattle that the early ones tended to develop.

When you put it back together the last plate ears should fit INSIDE the basket and everything should be sandwiched flat with no gaps. If your's has gaps remove the pressure plate, rotate it 90 degrees and re-insert it.

Stev-o · « **Reply #20145 on:** July 08, 2015, 05:32:12 pm »

Brought one home....

5thofhonda · « **Reply #20146 on:** July 08, 2015, 05:43:36 pm »

Quote from: Jerry Rxman Griffin aka MuthaF'er on July 08, 2015, 05:20:18 pm

So you are getting the complete mid-model clutch and basket. What year did you say yours is? The 77/78 are pieced together differently and eliminate the inherent clutch rattle that the early ones tended to develop.

When you put it back together the last plate ears should fit INSIDE the basket and everything should be sandwiched flat with no gaps. If your's has gaps remove the pressure plate, rotate it 90 degrees and re-insert it.

Mine is a K3. Everything is installed properly, all that's left is the lifter plate and the adjustment finally. Unfortunately it looks like it won't get here til the end of next week. In the meantime, I'm trying to find a welder or shop that will TIG the broken one back together. I've already been down for 3 weeks.

seanbarney41 · « **Reply #20147 on:** July 08, 2015, 06:19:30 pm »

Quote from: Stev-o on July 08, 2015, 05:32:12 pm

Brought one home....

looks very nice Steve-O...not sure if I've ever seen any late 550k's with pipes intact

PeWe · « **Reply #20148 on:** July 09, 2015, 01:58:20 pm »

Quote from: 5thofhonda on July 08, 2015, 05:43:36 pm

Quote from: Jerry Rxman Griffin aka MuthaF'er on July 08, 2015, 05:20:18 pm
So you are getting the complete mid-model clutch and basket. What year did you say yours is? The 77/78 are pieced together differently and eliminate the inherent clutch rattle that the early ones tended to develop.

When you put it back together the last plate ears should fit INSIDE the basket and everything should be sandwiched flat with no gaps. If your's has gaps remove the pressure plate, rotate it 90 degrees and re-insert it.

Mine is a K3. Everything is installed properly, all that's left is the lifter plate and the adjustment finally. Unfortunately it looks like it won't get here til the end of next week. In the meantime, I'm trying to find a welder or shop that will TIG the broken one back together. I've already been down for 3 weeks.

You are not alone not driving.
Several weeks without driving here too! Rain all the time except some days it was way too hot.

Greggo · « **Reply #20149 on:** July 09, 2015, 10:50:06 pm »

Took these two to the CHP for VIN verifications. I had zero paperwork for either, and now I can start the easy process of titling them through the DMV. The same officer that verified my sandcast helped me out, and figured out that the CL72 is actually an early 1963. He was pretty excited about the turbo bike, and told me to bring it by when it's done...said he once rode a GS750 with an ATP kit

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Author Topic: What did you do to your bike today ? (Read 3163042 times)