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Author Topic: Somethings not right 76 550  (Read 2490 times)

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Offline messeduptriple

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Somethings not right 76 550
« on: May 18, 2012, 04:58:29 PM »
Rode the bike today ...still seems like it wants more gas but will ride ok. Anyways after hour of rideing I noticed oil spewing out the top engine case. What was suppost  to be in here??? I plugged it up and rode home slowly...oil was everywhere on me and the bike...looks like oil factory. 

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Offline Scott S

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Re: Somethings not right 76 550
« Reply #1 on: May 18, 2012, 05:01:46 PM »
 That's your tach drive. There's a set screw that holds it in place. You can pull it out and check that the o-ring is in good shape.
 Do you have a tach? Just hook the cable up....
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Offline messeduptriple

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Re: Somethings not right 76 550
« Reply #2 on: May 18, 2012, 05:11:12 PM »
I only have one speedo  hooked up. Why is oil flying out of it?? If I don't have a tach  set up then what?

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Offline Tews19

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Somethings not right 76 550
« Reply #3 on: May 18, 2012, 05:56:33 PM »
Interesting. Should be something on here for that. Lots of people run only speedos.

You heading to miltown with your bike anytime soon?
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Offline messeduptriple

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Re: Re: Somethings not right 76 550
« Reply #4 on: May 18, 2012, 06:05:06 PM »
Quote from: Tews19 on May 18, 2012, 05:56:33 PM
Interesting. Should be something on here for that. Lots of people run only speedos.

You heading to miltown with your bike anytime soon?
sure ...that would be great
.
..once I get this thing running perfect. Where do you guys go? ?

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Offline Tews19

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Re: Somethings not right 76 550
« Reply #5 on: May 18, 2012, 06:59:25 PM »
Check the link out.. Person is also running just speedo and you can see their mod.

http://www.motographite.com/2011/12/honda-cb-750-f-1978-venice-cafe-racer.html
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1969 Honda CB750... Basket case
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Offline messeduptriple

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Re: Re: Somethings not right 76 550
« Reply #6 on: May 18, 2012, 07:46:15 PM »
Quote from: Tews19 on May 18, 2012, 06:59:25 PM
Check the link out.. Person is also running just speedo and you can see their mod.

http://www.motographite.com/2011/12/honda-cb-750-f-1978-venice-cafe-racer.html
looks like some sorta plug....not  sure what that is

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Offline Stev-o

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Re: Somethings not right 76 550
« Reply #7 on: May 18, 2012, 08:18:24 PM »
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Offline luap

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Re: Somethings not right 76 550
« Reply #8 on: May 18, 2012, 08:50:26 PM »
Did you fire the bike up an see if it is coming from the tach drive? None of the bikes Ive done have ran a tach cable or a tach plug an they had no leaks
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Offline messeduptriple

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Re: Re: Somethings not right 76 550
« Reply #9 on: May 19, 2012, 07:13:26 AM »
Quote from: luap on May 18, 2012, 08:50:26 PM
Did you fire the bike up an see if it is coming from the tach drive? None of the bikes Ive done have ran a tach cable or a tach plug an they had no leaks
Yes it was spraying out .... I stopped at a clinic  and tried to macgyver something.  Stuffed it with paper and wrapped with rubber band....
 Yea didn't really work well. When I got  home oil was everywhere.  My shoe was soaked my pants leg had it all over.
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Offline messeduptriple

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Re: Re: Somethings not right 76 550
« Reply #10 on: May 19, 2012, 11:31:39 AM »
Quote from: Stev-o on May 18, 2012, 08:18:24 PM
You need a tach plug,I have one on my K5. $10 on eBay.

PS. Check your oil level!



http://www.ebay.com/itm/CB750-CHROME-SPIKE-TACH-PLUG-tachometer-cb-750-350-gl-/290254056568?pt=Motorcycles_Parts_Accessories&hash=item43947d6c78&vxp=mtr#ht_697wt_689
thanks much stev-o  ordered it

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Offline Fritz

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Re: Somethings not right 76 550
« Reply #11 on: May 19, 2012, 12:34:08 PM »
I guess the tacho gear is missing. There should be a small shaft protruding in the tacho gear holder.
If the gear has been taken out, it will not seal and oil will be spit out of that orifice by the tacho sprocket on the camshaft.
Either put back the tacho gear or replace the gear holder with a plug that has an o ring on it.

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Offline Scott S

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Re: Somethings not right 76 550
« Reply #12 on: May 20, 2012, 03:40:10 AM »
Quote from: messeduptriple on May 19, 2012, 07:13:26 AM
Yes it was spraying out .... I stopped at a clinic  and tried to macgyver something.  Stuffed it with paper and wrapped with rubber band....
 Yea didn't really work well. When I got  home oil was everywhere.  My shoe was soaked my pants leg had it all over.

 Are you SURE it's coming from there? I see the rive for the cable in there.....and it shouldn't spray out enough oil to cover your shoe and pants.
 Where is the breather hoses routed? The one from the top of the engine?

 Why don't you get a can of engine degreaser, clean the whole engine and then ride it again. Make sure you know where the oil is coming from. I'd be really surprised if you're getting THAT much oil from the tach drive.
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Offline messeduptriple

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Re: Somethings not right 76 550
« Reply #13 on: May 20, 2012, 12:08:40 PM »
Everything looks ok...Im more then positive it was all coming out that hole

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Offline Stev-o

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Re: Somethings not right 76 550
« Reply #14 on: May 20, 2012, 12:25:31 PM »
Did you confirm that there is a tach gear in there?
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline messeduptriple

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Re: Somethings not right 76 550
« Reply #15 on: May 20, 2012, 12:41:33 PM »
Well im guessing its the prongs ...it's still in there.
Hard to see in the pic  but its there

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