Author Topic: chain oiler questions - 74 750  (Read 3335 times)

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Offline kpier883

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chain oiler questions - 74 750
« on: October 11, 2007, 08:29:32 PM »
I am trying to shut off my chain oiler (yes my 74 750 has one).  I have searched and read several topics relating to this.  In my case, I can't get the slotted center screw to turn.  I am thinking of taking the oiler mechanism off and see if I can get the screw to turn after removal from the bike.  The other threads on this topic indicate that if you turn the screw all the way in, the oil will mostly be stopped.

Questions - I think the front sprocket has to come off to remove the oiler.  Is that right?

Second:  The sprocket has three bolts.  2 have 10mm head and look like they hold on the sprocket by holding in place a locking retainer that fits into a slot in the shaft.

Third:  There is a bolt whose head looks to be about 19mm in the center.  Is that part of the oiler, or does it actually hold the sprocket in place?

Maybe this is a task to undertake after the riding season is over.  I am planning to ride Sunday and can imagine breaking all the tabs off of the locking washers or something.
74 CB750
80 CBX
82 KZ1000 K2 (LTD)
57 1/2 ton chevy

Offline 750essess

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Re: chain oiler questions - 74 750
« Reply #1 on: October 12, 2007, 05:28:16 AM »
It looks like you could remove the oiler and replace the rubber orifice( no. 2) with something solid and block it. Or the felt pad (no.6)
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Offline rhinoracer

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Re: chain oiler questions - 74 750
« Reply #2 on: October 12, 2007, 08:00:18 AM »
That 19mm bolt in the center is the oiler assembly, you can remove it without taking the sprocket off.

What controls oil flow is that #2 rubber plug, just inspect or replace it or you can plug it permanently. It's fairly easy, shouldn't have to wait till off-season.
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Offline andy750

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Re: chain oiler questions - 74 750
« Reply #3 on: October 12, 2007, 08:05:15 AM »
Loosen the 19mm bolt (best done with a short socket - it does fit!) and then turn the slotted screw in the centre clockwise to "turn off" the automatic chain oiler. Tighten 19mm bolt. Finished.

Simple!

cheers
Andy

Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

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Offline kpier883

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Re: chain oiler questions - 74 750
« Reply #4 on: October 12, 2007, 10:44:41 AM »
That is a good schematic, and one that isn't in my Clymer manual - Thanks essess.

Fellows, where can I get #11 if the tabs break off? 

I'll bet someone here knows an easy way to make one out of something.

Kirk

74 CB750
80 CBX
82 KZ1000 K2 (LTD)
57 1/2 ton chevy

Offline nteek754

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Re: chain oiler questions - 74 750
« Reply #5 on: October 12, 2007, 11:30:38 AM »
Hey there, If   all else fails you can put a broken off spark plug in there or just try and find a long enough bolt and that is key, it has to be long enough to reach past  the little hole that is in the shaft. Ive done the spark plug trick for years now its not the plug for the 750 I used one that was for my polaris snowmobile. good luck have fun Craig in Maine
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Offline 750essess

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Re: chain oiler questions - 74 750
« Reply #6 on: October 12, 2007, 11:42:20 AM »
Honda probably has it. I got the schematic from http://www.hondaparts-direct.com/fiche_select.asp also is a good place to order parts as well as service honda ( i dont have their address). You could also just locktight it in there if it breaks.
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Offline Jonesy

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Re: chain oiler questions - 74 750
« Reply #7 on: October 13, 2007, 12:10:54 PM »
The adjuster screw has a nylon slug in it to keep it in adjustment, so it is supposed to be a bit stiff to turn anyway, but it may be corroded a bit. If you remove the 19mm bolt that it's in, you can soak the whole thing in penetrating oil and free it up. Don't go gonzo on the adjuster screw with a flat blade screwdriver or you can easily break off one of the sides of the screw slot.
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Offline kpier883

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Re: chain oiler questions - 74 750
« Reply #8 on: October 15, 2007, 04:19:54 PM »
I loosened the 19 mm nut and was then able to turn the screw all the way in.  I didn't take the time to clean out all the gunk around the sprockets, so I may not be able to tell if the oil flow stops for a while.

The tabbed washer didn't break.  Yea!

Thanks to all who replied.  You make it possible for me to maintain my bike.

By the way, I rode over 700 miles yesterday and had no problems, so that is a relief, as I don't usually like to change anything right before a trip.

Kirk
74 CB750
80 CBX
82 KZ1000 K2 (LTD)
57 1/2 ton chevy