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Author Topic: Sandcast 4286 Project  (Read 164010 times)

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Offline Greggo

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Re: Sandcast 4286 Project
« Reply #625 on: July 20, 2014, 10:36:52 AM »
I ran into the same problem as Greenjeans did with replacing the front sprocket.  This motor's countershaft doesn't have enough meat to get a 'shouldered' sprocket on far enough with room to fit the locking plate.  So, the 16-tooth sprocket I got from CycleX doesn't fit...I'm ordering the flat 16-toother from Dennis Kirk.  This bike isn't for flogging, so I'm not worried about any breakage from new sprockets and a new chain.  Maybe I'll set up the K4 I have for my dad with a 16/45 gearing so he can have some fun ;D

Here's where Greenjeans explains the problem better than I want to:

Quote from: greenjeans on March 09, 2012, 01:11:52 PM
1969 CB750K 

Need new front sprocket.   I know I can get one from Honda but it's twice as much as an aftermarket.

I picked up a JT sprocket at a local dealer.

Looks like this:



However, it will not fit.   The bolt pattern is correct, but the plate that goes on the spline and then rotates to enable the bolts to thread into the sprocket to keep it in place won't go.

The sprocket has a lip/shelf that is approximately the width of the plate.   

http://www.westernhillshondayamaha.com/fiche_section_detail.asp?section=125962&category=MOTORCYCLES&make=HONDA&year=1969&fveh=2998

The guy swears to me he sells them all the time and that they fit my bike.    JT sprockets web page also shows it to fit my bike.    However, the locking plate WILL NOT fit.

Everything is clean as a whistle.     What gives ?    Do I just need to spring for the more expensive Honda sprocket ?     Surely there is an aftermarket option.


Quote from: greenjeans on March 09, 2012, 01:59:10 PM
Success - just got off the phone with DennisKirk - One of their guys actually took 3 different sprockets out of their packaging and measured them.   Problem solved.   Customer service is refreshing.

It is amazing how I can overthink the simplest things.

In case anyone is interested, this sprocket is the same dimensions (8.7mm thick) as the type in my photo.

https://www.denniskirk.com/parts-unlimited/sprocket.p8254.prd/825415.sku

Parts:     

825416 (16T)
825417 (17T)
825418 (18T)
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Offline seanbarney41

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Re: Sandcast 4286 Project
« Reply #626 on: July 20, 2014, 11:30:55 AM »
If you have access to a mill, it's pretty easy to mill the shoulder off one side, takes about 15 minutes
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Offline Greggo

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Re: Sandcast 4286 Project
« Reply #627 on: July 20, 2014, 12:31:29 PM »
Quote from: seanbarney41 on July 20, 2014, 11:30:55 AM
If you have access to a mill, it's pretty easy to mill the shoulder off one side, takes about 15 minutes

I'll just save it for another bike..I'm not worried about using a flat one on this bike.
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Offline Retro Rocket

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Re: Sandcast 4286 Project
« Reply #628 on: July 20, 2014, 02:12:58 PM »
Quote from: Greggo on July 19, 2014, 10:16:07 PM
Quote from: Stev-o on July 19, 2014, 05:25:52 PM
Quote from: Greggo on July 19, 2014, 05:20:50 PM
Quote from: Stev-o on July 19, 2014, 05:18:03 PM
Progress....

Am I going slow enough for you? ;D ;D

Well, let's just say it's not hard to keep up!

I shouldn't say a thing, I've got two projects in the garage that are moving at a snails pace.  My excuse is I hate working when it's 90 degrees in the garage.

My excuse is the distance (60 miles) between me and the shop.

Quote from: Retro Rocket on July 19, 2014, 09:10:04 PM
Quote from: Greggo on July 19, 2014, 05:20:50 PM
Quote from: Stev-o on July 19, 2014, 05:18:03 PM
Progress....

Am I going slow enough for you? ;D ;D

I've got that department covered Greg, your flying mate.... ;D ;)

I forgot about that monster you're building!  Have you got a build thread for that one yet?

No not yet, once i started collecting parts it quickly turned into 3 bikes... :o Found another frame yesterday so possibly 4.... {shakes head}, good news is that I will be starting the first build {K2} as soon as my next box of parts arrives from the States... 8) The Monster is still a while away.... :-[
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Offline Greggo

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Re: Sandcast 4286 Project
« Reply #629 on: August 01, 2014, 06:58:27 PM »
Why does it feel like everything I do on this bike takes forever?!?  Oh yeah, because it does!

Tires came in the mail today, but they're not mounted yet...so, no roller yet.  But, I got the top tree, gauges, forks, boots, and ears installed.  I got my Dennis Kirk flat 16-tooth sprocket in there too.  The early countershafts on these sandcasts need the flat (non-shouldered sprockets)




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Offline Stev-o

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Re: Sandcast 4286 Project
« Reply #630 on: August 01, 2014, 07:29:39 PM »
Surprised you didn't get a 120mm for the rear
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Offline Greggo

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Re: Sandcast 4286 Project
« Reply #631 on: August 01, 2014, 10:15:23 PM »
Quote from: Stev-o on August 01, 2014, 07:29:39 PM
Surprised you didn't get a 120mm for the rear

I didn't want it to be too meaty in the back.  110 is closer to stock anyway.
« Last Edit: August 01, 2014, 10:20:23 PM by Greggo »
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Offline Greggo

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Re: Sandcast 4286 Project
« Reply #632 on: August 02, 2014, 01:02:31 PM »
Ooooh, yeah

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Offline Stev-o

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Re: Sandcast 4286 Project
« Reply #633 on: August 02, 2014, 01:16:56 PM »
Nothin like new rubber, especially on new laced wheels. Got bearings?
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Greggo

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Re: Sandcast 4286 Project
« Reply #634 on: August 02, 2014, 01:31:06 PM »
Quote from: Stev-o on August 02, 2014, 01:16:56 PM
Nothin like new rubber, especially on new laced wheels. Got bearings?

All new ones installed, axles cleaned/greased.
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Offline Stev-o

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Re: Sandcast 4286 Project
« Reply #635 on: August 02, 2014, 01:54:18 PM »
Quote from: Greggo on August 02, 2014, 01:31:06 PM
Quote from: Stev-o on August 02, 2014, 01:16:56 PM
Nothin like new rubber, especially on new laced wheels. Got bearings?

All new ones installed, axles cleaned/greased.

So, ready for install. When you headed to the shop?
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Greggo

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Re: Sandcast 4286 Project
« Reply #636 on: August 02, 2014, 02:29:56 PM »
Quote from: Stev-o on August 02, 2014, 01:54:18 PM
Quote from: Greggo on August 02, 2014, 01:31:06 PM
Quote from: Stev-o on August 02, 2014, 01:16:56 PM
Nothin like new rubber, especially on new laced wheels. Got bearings?

All new ones installed, axles cleaned/greased.

So, ready for install. When you headed to the shop?

Friday...
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Offline goldarrow

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Re: Sandcast 4286 Project
« Reply #637 on: August 02, 2014, 04:25:47 PM »
I have 110 rear on all my bikes, several thousand miles, all running cast aluminum mag rims, starting to flat out in the center of the tires. 
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Offline Stev-o

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Re: Sandcast 4286 Project
« Reply #638 on: August 02, 2014, 04:40:40 PM »
Quote from: goldarrow on August 02, 2014, 04:25:47 PM
I have 110 rear on all my bikes, several thousand miles, all running cast aluminum mag rims, starting to flat out in the center of the tires. 

You need to stop going just straight and hit the twisties!
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Offline Terry in Australia

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Re: Sandcast 4286 Project
« Reply #639 on: August 02, 2014, 05:03:33 PM »
I should post a pic of the rear tire on the K2 rolling chassis I've got here, it's so square it looks like a vintage car tire. It's not surprising that the engine blew up.......... ;D
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Offline Greggo

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Re: Sandcast 4286 Project
« Reply #640 on: August 08, 2014, 06:05:06 PM »
ROLLING!!!!!!!!!!  :) :) :) :) :)



« Last Edit: August 09, 2014, 10:51:37 AM by Greggo »
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Offline edhaeuser

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Re: Sandcast 4286 Project
« Reply #641 on: August 08, 2014, 06:51:09 PM »
Looking great!  It's always a great feeling to get to that stage!
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Offline Greggo

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Re: Sandcast 4286 Project
« Reply #642 on: August 15, 2014, 05:18:45 PM »
Current project next to the new project ;D



Got a CL72 today!  It was pretty much free...motor's locked up, so we pulled the plugs and sprayed Kroil down the cylinders.

Worked on the sandcast today.  Installed the starter motor, cam chain tensioner, exhaust pipes, headlight bucket, and a few odds and ends.




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Offline Terry in Australia

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Re: Sandcast 4286 Project
« Reply #643 on: August 15, 2014, 06:02:28 PM »
Beautiful work mate, and your new project looks cool too! Cheers, Terry. ;D
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I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Stev-o

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Re: Sandcast 4286 Project
« Reply #644 on: August 15, 2014, 06:23:58 PM »
Quote from: Terry in Australia on August 15, 2014, 06:02:28 PM
Beautiful work mate, and your new project looks cool too!

+1.   You know what we say, the cheapest bikes are the most expensive.  But doubt you'll do a full restore on the CL like your Sandy.
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Terry in Australia

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Re: Sandcast 4286 Project
« Reply #645 on: August 15, 2014, 06:37:01 PM »
Actually, I say, "The cheapest bikes are the only ones I buy", ha ha! ;D
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I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Mcwilliams570

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Re: Sandcast 4286 Project
« Reply #646 on: August 15, 2014, 06:51:39 PM »
Quote from: Terry in Australia on August 15, 2014, 06:37:01 PM
Actually, I say, "The cheapest bikes are the only ones I buy", ha ha! ;D

Yeah same here. Its looking great Greggo.
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Offline Greggo

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Re: Sandcast 4286 Project
« Reply #647 on: August 15, 2014, 10:16:22 PM »
Thanks guys.  I thought you'd all like that scrambler...I'm Really liking it.  Here's the story: Pop's shop partner scored it from the guy who painted my sandcast frame/black parts.  He also picked up a Lancia Fulvia there too.  But he only paid $40 for the bike, knowing I'd want it if no one else did ;D Well, I guess no one else wanted it (he tried too ;D ;D ) so I got it.  I might even get a title for it too :)

Pops putting some Kroil down the plug holes.



Bad sign with the locked up motor?


1965, right?



I'll start another thread on this bike when I tear into it. 

It's got a little bit of work to go before I get here ;D ;D ;D


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Offline Terry in Australia

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Re: Sandcast 4286 Project
« Reply #648 on: August 15, 2014, 11:02:23 PM »
She'll be right mate, a bottle of Armorall and some elbow grease and it'll look like new! ;D
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I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline toytuff

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Re: Sandcast 4286 Project
« Reply #649 on: August 16, 2014, 05:08:28 AM »
Very, very nice Greggo.

tt
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