Author Topic: Just another 71 CB750 K1 (After over a year, I finally got some 4 into 4 pipes!) (Read 94450 times)

edhaeuser · « **Reply #175 on:** March 31, 2013, 11:30:09 AM »

Quote from: iron_worker on March 27, 2013, 07:10:43 AM

Have you have it dyno'ed to see how many kitties you're getting to the rear wheel?

Is that the correct routing of the wiring harness? Underneath the frame?

IW

I'm not sure of the correct routing from the battery box to the back of the bike. I think I have the routing the same as my reference photos going from the box forward to the switch area. I am away from home for a few weeks and I don't have access to my reference photos on the wiring. Hopefully, I documented it well enough to figure it out.

There is a heavier green wire with a washer type end on it near the battery box. Can someone tell me where this connects?

cheftuskey121 · « **Reply #176 on:** March 31, 2013, 12:41:22 PM »

Ed, I believe that is the main frame ground. There is a tab on your frame on the electronic side of the bike near the battery box up near the top that it screws into. Make sure all paint etc is cleared from that tab. Bare metal there

Retro Rocket · « **Reply #177 on:** March 31, 2013, 02:20:03 PM »

Edhaeuser, Keep us updated on the tubeless kits mate, you have some very interested members here now........

Does each kit only do one wheel or 2 ?

brandEn · « **Reply #178 on:** March 31, 2013, 04:03:58 PM »

YUP, I'm REALLY interested in one of those tubeless kits. The prices I see on Ebay seem high though.

edhaeuser · « **Reply #179 on:** March 31, 2013, 04:33:15 PM »

Quote from: Retro Rocket on March 31, 2013, 02:20:03 PM

Edhaeuser, Keep us updated on the tubeless kits mate, you have some very interested members here now........ Does each kit only do one wheel or 2 ?

You have a choice of one or both wheels in the tubeless kit.

Quote from: brandEn on March 31, 2013, 04:03:58 PM

YUP, I'm REALLY interested in one of those tubeless kits. The prices I see on Ebay seem high though.

I know the prices are not inexpensive. I can purchase his exhaust systems at a good margin, but the tubeless kits not so much, which leads me to believe that raw material prices are expensive for him as well.

I don't know the forum rules, but I hesitate to promote anything in this thread.

Ed

Retro Rocket · « **Reply #180 on:** March 31, 2013, 04:36:02 PM »

Promote away, this is an interesting subject and information sharing is at the root of this forum....

Retro Rocket · « **Reply #181 on:** March 31, 2013, 04:37:42 PM »

Quote from: brandEn on March 31, 2013, 04:03:58 PM

YUP, I'm REALLY interested in one of those tubeless kits. The prices I see on Ebay seem high though.

Ebay linky please...

edhaeuser · « **Reply #182 on:** March 31, 2013, 05:20:54 PM »

Quote from: Retro Rocket on March 31, 2013, 04:37:42 PM

Quote from: brandEn on March 31, 2013, 04:03:58 PM
YUP, I'm REALLY interested in one of those tubeless kits. The prices I see on Ebay seem high though.

Ebay linky please...

Here you go. other sizes are available through the auction. I have no connection with the auctions, except that the guy is my friend.

http://www.ebay.com/itm/Tubeless-kit-spoke-rims-Supermoto-DUCATI-etc-Part-Number-FR355-OUTEX-/300882697072?hash=item460e019b70&item=300882697072&pt=Motorcycles_Parts_Accessories&vxp=mtr

Ed

edhaeuser · « **Reply #183 on:** March 31, 2013, 07:05:02 PM »

one last short update before I get home from work in a couple of weeks. As you may recall, I had soaked some of my chrome pieces in vinegar for a few days. i ended up lightly cleaning the undersides of the fenders with a brass brush and the top side with 0000 steel wool for a final cleanup. the parts came out pretty nice.......considering what I started with.

here is the front fender, it came out nicer than the rear.

And now I have a half of a roller......sure wish I had a new DID rim for the rear so I would have a whole roller.

Well, that is going to be it for a while

Ed

sazaver · « **Reply #184 on:** March 31, 2013, 08:35:15 PM »

I like how organized you are in details. Keep here posted..

I am very curious about the Tubeless kit. I will get WM3 and WM5 shouldered rims soon so I am wondering if your friend has kits matching these rims?

edhaeuser · « **Reply #185 on:** April 20, 2013, 07:11:33 AM »

Quote from: sazaver on March 31, 2013, 08:35:15 PM

I like how organized you are in details. Keep here posted..

I am very curious about the Tubeless kit. I will get WM3 and WM5 shouldered rims soon so I am wondering if your friend has kits matching these rims?

Sorry about the delayed response. Yes he would have kits for those rims.

edhaeuser · « **Reply #186 on:** April 20, 2013, 07:27:01 AM »

Well, I had really hoped to just clean up and paint my engine and then run it for this summer and see how it goes. Alas, I really should tear it down and do it right, considering what I just found yesterday.

I bought the cheap Harbor Freight engine stand a while back. I finally got aound to fabricating some stand off mounts for the CB750 engine so that I would have easy access for cleaning and painting.

The engine needed a really good cleaning for starters.

Well, I knew there was a reasonable chance that I would find this problem as the sprocket cover had a hole in it from chain slap. I cleaned off the grease and found this fiberglass patch on the case. Sigh. I had hoped that I would escape this problem. So, I guess I will need to tear the engine down and do a complete rebuild as well as get a patch welded in the case.

So.......more time and more money. Both of which are at a premium these days. I had hoped to get this thing on the road by the end of June. Who knows how long it will be now.

edhaeuser · « **Reply #187 on:** April 20, 2013, 07:44:26 AM »

On a lighter note........ I saw this seat pan and foam for sale on Fleabay. I noticed that it was located 20 miles from me so I messaged the seller to see if I could pick it up and not pay the $25 dollar shipping. He had a buy it now of $80 so I snagged it. It is in very nice condition. The chrome trim pieces are perfect and the pan is nearly perfect. According to him, The seat cover was damaged by a shipper when he had the bike shipped. Apparently, It was a NOS seat on a fairly recent restoration. He had taken the seat to be re upholstered and then ended up just buying a new seat. I will get a nice seat cover from ebay and have a really nice seat for about $150.

It still has the factory stamps on it

MoMo · « **Reply #188 on:** April 20, 2013, 07:57:07 AM »

I had the same misforture as you, after cleaning the case I found a similar fiberglass repair. Very disheartening, isn't it?...Larry

edhaeuser · « **Reply #189 on:** April 20, 2013, 08:00:18 AM »

Quote from: MoMo on April 20, 2013, 07:57:07 AM

I had the same misforture as you, after cleaning the case I found a similar fiberglass repair. Very disheartening, isn't it?...Larry

Yup. Did you repair yours?

MoMo · « **Reply #190 on:** April 20, 2013, 08:07:48 AM »

Quote from: edhaeuser on April 20, 2013, 08:00:18 AM

Quote from: MoMo on April 20, 2013, 07:57:07 AM
I had the same misforture as you, after cleaning the case I found a similar fiberglass repair. Very disheartening, isn't it?...Larry

Yup. Did you repair yours?

It is a future project, I doubt I will fix it as 750 motors are readily available and pretty cheap(I happen to have 2 and a half motors somewhere in my mess of stuff)...Larry

p.s. My area is smaller than yours, if I were to get it fixed, there is an Amish aluminum fabricator around here that would fix it for a reasonable fee.

edhaeuser · « **Reply #191 on:** April 20, 2013, 08:30:59 AM »

Quote from: MoMo on April 20, 2013, 08:07:48 AM

It is a future project, I doubt I will fix it as 750 motors are readily available and pretty cheap(I happen to have 2 and a half motors somewhere in my mess of stuff)...Larry

p.s. My area is smaller than yours, if I were to get it fixed, there is an Amish aluminum fabricator around here that would fix it for a reasonable fee.

I will have to see what I am going to do. It looks like the upper case is OK but the lower case is not.

Ed

edhaeuser · « **Reply #192 on:** April 20, 2013, 08:35:39 AM »

After judicious use of the Mapp torch, (i.e. lets start the motor on fire) it appears that the damage is just to the lower case. Now, to find a good lower case for a good price. Or repair mine? There is a local guy that has several spare engines of varying years. Are the lower cases the same through the years?

Tews19 · « **Reply #193 on:** April 20, 2013, 08:56:40 AM »

That is #$%*ty. It seems te earlier cases are becoming harder to find. I have the k1 with the crank in the points cover area and when I found it my heart dropped. I was bummed like no other.

cheftuskey121 · « **Reply #194 on:** April 20, 2013, 09:01:41 AM »

why not repatch it, then jb weld it. if it doesnt leak it doesnt leak? thats how mine was and it doesnt leak. so I just added more jb weld over the whole area for safe measure.

edhaeuser · « **Reply #195 on:** April 20, 2013, 09:14:28 AM »

Quote from: cheftuskey121 on April 20, 2013, 09:01:41 AM

why not repatch it, then jb weld it. if it doesnt leak it doesnt leak? thats how mine was and it doesnt leak. so I just added more jb weld over the whole area for safe measure.

That was my original thought as well. When I went to sleep last night I just thought I would just run it as is. But, when I woke up this morning I knew it would bother me to no end so a rebuild it is. The engine has 37000 miles on it anyway so this is the excuse I need to tear into it. I've never rebuilt a Honda engine before, just British bikes, so this will be a new experience for me. Hmmm.....maybe a 836 kit is in order.

Ed

cheftuskey121 · « **Reply #196 on:** April 20, 2013, 10:00:07 AM »

See that's why I did NOT want to tear in. Not only have a never built a Honda engine I've never
Built any engine let alone any mechanical work before his project. If I get it going and it isn't right I'll have no choice but to do it. If it comes
To that it comes to that. I'm avoiding it for now though. Over my head. I'll be watching closely Ed, in case I need I do the same. Good luck!

edhaeuser · « **Reply #197 on:** April 20, 2013, 10:30:41 AM »

Quote from: cheftuskey121 on April 20, 2013, 10:00:07 AM

See that's why I did NOT want to tear in. Not only have a never built a Honda engine I've never
Built any engine let alone any mechanical work before his project. If I get it going and it isn't right I'll have no choice but to do it. If it comes
To that it comes to that. I'm avoiding it for now though. Over my head. I'll be watching closely Ed, in case I need I do the same. Good luck!

I hear ya. And I have to say, for you never having done a project even romotely like you are doing now, you are doing an outstanding job. Kudos to you Chef!

I spent most of this week finalizing some changes to my never ending Triumph project. At least I have it and my CB400F to ride this summer!!!!

I know this isn't a SOHC, but it is fun as heck!!

Ed

MoMo · « **Reply #198 on:** April 20, 2013, 03:15:18 PM »

You cannot replace just the lower case as Honda matched their cases...Larry

edhaeuser · « **Reply #199 on:** April 20, 2013, 03:24:15 PM »

Quote from: MoMo on April 20, 2013, 03:15:18 PM

You cannot replace just the lower case as Honda matched their cases...Larry

Ya thanks. I figured that out after I posted earlier. I guess I will have to replace the whole set or fix what I have.

Ed

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Author Topic: Just another 71 CB750 K1 (After over a year, I finally got some 4 into 4 pipes!) (Read 94450 times)