Author Topic: Hey , my cb750 is leaking oil  (Read 7935 times)

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Offline Davez134

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Re: Hey , my cb750 is leaking oil
« Reply #25 on: July 31, 2013, 09:24:43 AM »
How do I shut that thing OFF ?

Spark plug is an option. I used another method described somewhere on this forum. Used an o-ring, cut it, thread through the oiler hole (have to take sprocket off) and cut ends flush. Then put everything back together as it would normally be. Do a search for this. There is a good explanation with pictures.

Offline 70CB750

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Re: Hey , my cb750 is leaking oil
« Reply #26 on: July 31, 2013, 09:43:07 AM »
How do I shut that thing OFF ?

Spark plug is an option. I used another method described somewhere on this forum. Used an o-ring, cut it, thread through the oiler hole (have to take sprocket off) and cut ends flush. Then put everything back together as it would normally be. Do a search for this. There is a good explanation with pictures.

Nice!
Prokop
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I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650

Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #27 on: July 31, 2013, 11:21:48 AM »
Yup , gonna finish that up this evening  .
Since I have that cover off , anything else I should be lookin at  ??
ROTHNOTHAGAR !

Offline iron_worker

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Re: Hey , my cb750 is leaking oil
« Reply #28 on: July 31, 2013, 02:21:40 PM »
I JB Weld'ed a dowel into the through hole in my sprocket shaft ... I also removed the oil cup from the inside of the trans that directs the oil spray through the hole in the first place. BUT you have to have the cases split to do that.

IW

Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #29 on: July 31, 2013, 05:37:35 PM »
All bolts are out , should this front sprocket be this difficult to get out ?? Arrrrrgggghhhhh
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Offline Davez134

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Re: Hey , my cb750 is leaking oil
« Reply #30 on: July 31, 2013, 06:26:58 PM »
Im assuming you removed the two bolts that go through the retainer and into the sprocket. Even though it looks like it should come off, you have to remove the (19mm i believe) bolt from the end of the shaft. Then there is a washer with little tabs on it that you have to remove before anything will come off. If you have done all that then just keep working at getting it off, nothing else holding it on.

Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #31 on: July 31, 2013, 07:54:17 PM »
Yeah , had all the fasteners off , just couldn't get it to slide off , so , great way to meet the new hotrodder neighbor , asked him if he had one of those old school pullers , " yup!" Yanked it right off !!!
Plug up the hole tomorrow , button every thing up , fingers crossed no more oil leaks , fer now ! \m/
ROTHNOTHAGAR !

Online scottly

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Re: Hey , my cb750 is leaking oil
« Reply #32 on: July 31, 2013, 08:03:29 PM »
Ain't she a bute ?
The adjustment for the oiler is the slotted screw in the center of the shaft. Yours is backed out. Screw it all the way in, and the oil flow should lessen.
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline SOHC4 Cafe Racer Fan

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Re: Hey , my cb750 is leaking oil
« Reply #33 on: July 31, 2013, 10:50:51 PM »
If you want to cut it off altogether, you can fit a plug.  Joker makes one for about $5.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #34 on: August 01, 2013, 05:01:17 AM »
So , took the chain off to do this lil project, I remembered to take not on which way to thread it back through , but if you lay the chain flat , stretched out , I did NOT take note on which way it would go if you were to flip it 180* , does it really matter ? Chain & sprockets have about 1500-2000 miles
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Offline 70CB750

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Re: Hey , my cb750 is leaking oil
« Reply #35 on: August 01, 2013, 05:13:27 AM »
It matters some  - contact surfaces will have to mate again - but nothing really serious.

Prokop
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Pure Gas - find ethanol free gas station near you

I love it when parts come together.

Dorothy - my CB750
CB750K3F - The Red
Sidecar


CB900C

2006 KLR650

Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #36 on: August 01, 2013, 05:46:00 AM »
Well , I have 50/50 chance of getting it right
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Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #37 on: August 01, 2013, 08:04:37 PM »
Went mountain bike racing tonite , so no werk on the Honda , my priorities are way out of whack
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Offline D-Ral

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Re: Hey , my cb750 is leaking oil
« Reply #38 on: August 02, 2013, 05:54:56 AM »
You don't have to remove both to get at the sprocket.

Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #39 on: August 02, 2013, 07:36:36 PM »
How's this look? Haven't pushed the tabs on that washer all the way down yet . But maybe had had one 2 many PBR's , was thinkin something is missing ?
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Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #40 on: August 02, 2013, 07:37:15 PM »
Oh yeah , sealed of the oiler
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Offline Davez134

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Re: Hey , my cb750 is leaking oil
« Reply #41 on: August 02, 2013, 07:56:35 PM »
Looks good.

Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #42 on: August 02, 2013, 08:01:14 PM »
Ok , was thinkin that sprocket sat proud at the end of that shaft
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Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #43 on: August 03, 2013, 03:15:51 PM »
Well , all put back together , took it around the block a few times , no leaks , yet, probly gonna be a few days before we know if its not leakin. Will keep ta posted.
Thanks everyone who chimed in !! Party on \m/ !!!!
ROTHNOTHAGAR !

Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #44 on: August 25, 2013, 07:53:16 PM »
Solid !!
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Offline bjatwood

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Re: Hey , my cb750 is leaking oil
« Reply #45 on: August 30, 2013, 06:40:16 PM »
I take it that baby doesn't "litter"any longer?
Brian
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Offline smpls70

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Re: Hey , my cb750 is leaking oil
« Reply #46 on: August 30, 2013, 06:54:37 PM »
So far so good , as far as that goes , but don't Hondas always leak oil ?!?!?!
ROTHNOTHAGAR !

Offline SOHC4 Cafe Racer Fan

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Re: Hey , my cb750 is leaking oil
« Reply #47 on: August 30, 2013, 09:17:44 PM »
So far so good , as far as that goes , but don't Hondas always leak oil ?!?!?!

Not like old BSA's and Triumphs!!
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline BPellerine

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Re: Hey , my cb750 is leaking oil
« Reply #48 on: August 31, 2013, 05:05:07 PM »
myths never die.bill
1978 CB 750K ard and webers
another anfob

Offline bjatwood

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Re: Hey , my cb750 is leaking oil
« Reply #49 on: September 02, 2013, 06:12:28 AM »
My K3 is 40 years old this year, and she has never left any drops on the floor... ;)
Brian
#24193

I believe that the Finest things are the most thoughtfully made, not the most expensive!
http://minibikers.proboards.com/