Author Topic: Do I need a float level gauge/where to get one..  (Read 10894 times)

0 Members and 1 Guest are viewing this topic.

Offline zoo mob

  • Hot Shot
  • ***
  • Posts: 475
Do I need a float level gauge/where to get one..
« on: August 07, 2008, 10:42:18 AM »
Do you guys keep float level gauges as part of your tool kits? A friend says you can just do it by eye. Where is a good source?

Thanks
Andrew
 1970 750 K0
 1980 BMW R100T
 1980 GS1100E
 1993 XR650L
Always looking for more

Offline heffay

  • Really Old Timer ...
  • *******
  • Posts: 7,874
Re: Do I need a float level gauge/where to get one..
« Reply #1 on: August 07, 2008, 10:46:46 AM »
it can also be done by using a piece of tubing attached to the drain and held up against the carb body... fuel in carb and let drain.  will flow inside clear tubing to the exact level that it is at inside the bowl.

problem w/ this method is the requirement to disassemble, assemble, fill, set up tube, drain, measure, repeat entire process as needed!
all w/ only 2 hands!  and 4 carbs!
Today: '73 cb350f, '96 Ducati 900 Supersport
Past Rides: '72 tc125, '94 cbr600f2, '76 rd400, '89 ex500, '93 KTM-125exc, '92 zx7r, '93 Banshee, '83 ATC250R, 77/75 cb400f

750fromhell

  • Guest
Re: Do I need a float level gauge/where to get one..
« Reply #2 on: August 07, 2008, 10:51:41 AM »
This is what this guy is using in place of the honda "special tool":




And how he measures 26mm. Is that what you are looking for?
http://www.salocal.com/sohc/tech/carb/asmpg_mgs/flthgt.htm

Offline feliz

  • Enthusiast
  • **
  • Posts: 236
Re: Do I need a float level gauge/where to get one..
« Reply #3 on: August 07, 2008, 10:56:13 AM »
If you're willing to shell out the bucks you can still buy the Honda tool from any dealer.
feliz

Current bikes:
05 Ural Patrol
CB750K1, K3, K4
08 Aprilia Shiver

Offline medic09

  • Old Timer
  • ******
  • Posts: 2,666
Re: Do I need a float level gauge/where to get one..
« Reply #4 on: August 07, 2008, 10:56:32 AM »
750fromhell has the right tool!  Any tool store has 'em.

Or, you can spend about 30-40 bucks for the 'real thing'.  I happen to have one... ::)
Mordechai

'78 CB750K
'76 Triumph T160 Trident (rebuilding)
'07 aprilia Caponord

Santa Fe, NM

Offline heffay

  • Really Old Timer ...
  • *******
  • Posts: 7,874
Re: Do I need a float level gauge/where to get one..
« Reply #5 on: August 07, 2008, 11:03:25 AM »

Or, you can spend about 30-40 bucks for the 'real thing'.  I happen to have one... ::)

show off   :P
Today: '73 cb350f, '96 Ducati 900 Supersport
Past Rides: '72 tc125, '94 cbr600f2, '76 rd400, '89 ex500, '93 KTM-125exc, '92 zx7r, '93 Banshee, '83 ATC250R, 77/75 cb400f

Offline zoo mob

  • Hot Shot
  • ***
  • Posts: 475
Re: Do I need a float level gauge/where to get one..
« Reply #6 on: August 07, 2008, 11:07:47 AM »
I like the look of the oem tool, anyone have a part#? The last woman I spoke with at my local Honda dealer did not know whether a CB750 was a motorcycle or "something else"
Andrew
 1970 750 K0
 1980 BMW R100T
 1980 GS1100E
 1993 XR650L
Always looking for more

Offline heffay

  • Really Old Timer ...
  • *******
  • Posts: 7,874
Re: Do I need a float level gauge/where to get one..
« Reply #7 on: August 07, 2008, 11:16:10 AM »
I like the look of the oem tool, anyone have a part#? The last woman I spoke with at my local Honda dealer did not know whether a CB750 was a motorcycle or "something else"
maybe a little bit too local.   ;D
Today: '73 cb350f, '96 Ducati 900 Supersport
Past Rides: '72 tc125, '94 cbr600f2, '76 rd400, '89 ex500, '93 KTM-125exc, '92 zx7r, '93 Banshee, '83 ATC250R, 77/75 cb400f

Offline zoo mob

  • Hot Shot
  • ***
  • Posts: 475
Re: Do I need a float level gauge/where to get one..
« Reply #8 on: August 07, 2008, 11:48:09 AM »
Talked to the previously mentioned dealer, and they said they checked with their service department, and it would cost "over $100" Not happening.
Andrew
 1970 750 K0
 1980 BMW R100T
 1980 GS1100E
 1993 XR650L
Always looking for more

Offline kghost

  • Really Old Timer ...
  • *******
  • Posts: 6,855
  • www.facebook.com/RetroMecanicaAustralia
Re: Do I need a float level gauge/where to get one..
« Reply #9 on: August 07, 2008, 11:58:50 AM »
Talked to the previously mentioned dealer, and they said they checked with their service department, and it would cost "over $100" Not happening.

Both your friend and your dealer are idiots.

Seriously tho....you can make one out of a scrap piece of tin or aluminium.

Stranger in a strange land

Offline bozo4onion

  • Hot Shot
  • ***
  • Posts: 368
Re: Do I need a float level gauge/where to get one..
« Reply #10 on: August 07, 2008, 12:18:01 PM »
1. Look at the gauge Honda sells. 2. Look at your disassembled carb. 3. Use your imagination. You don't need an adjustable one. I made one from stiff posterboard. It took 3 tries to get it right but in 15min. I was setting my floats. Worked perfect. Good luck.

Offline medic09

  • Old Timer
  • ******
  • Posts: 2,666
Re: Do I need a float level gauge/where to get one..
« Reply #11 on: August 07, 2008, 12:48:07 PM »
Buy one of those cheap rulers in the thread.  They're cheap, and you'll use it for many occasions.  I have two or three around the house.
Mordechai

'78 CB750K
'76 Triumph T160 Trident (rebuilding)
'07 aprilia Caponord

Santa Fe, NM

Offline mkramer1121

  • Expert
  • ****
  • Posts: 1,304
Re: Do I need a float level gauge/where to get one..
« Reply #12 on: August 07, 2008, 12:53:03 PM »
check this thread and make your own:
http://forums.sohc4.net/index.php?topic=25423.0

Offline feliz

  • Enthusiast
  • **
  • Posts: 236
Re: Do I need a float level gauge/where to get one..
« Reply #13 on: August 07, 2008, 04:36:22 PM »
Not suggesting anyone buy one but to answer the question the part number is 07401-0010000 and I paid $38.02 in Canada so for sure it would be less in the US, everything else is. This was about a month ago.

I bought it along with a new exhaust for my K3 and we all know what they cost so the gauge didn't seem like much at the time.
feliz

Current bikes:
05 Ural Patrol
CB750K1, K3, K4
08 Aprilia Shiver

Offline timdhawk

  • Hot Shot
  • ***
  • Posts: 377
  • 1978 CB750K
Re: Do I need a float level gauge/where to get one..
« Reply #14 on: August 07, 2008, 05:05:33 PM »
ebay has a few new for 35.00.
In deeper than I should be...

anhedonian

  • Guest
Re: Do I need a float level gauge/where to get one..
« Reply #15 on: August 08, 2008, 06:33:53 AM »
a paperclip bent snug around the ruler might suffice?

Offline immortal

  • Enthusiast
  • **
  • Posts: 247
    • 1976 CB750F "Pegasus bike"
Re: Do I need a float level gauge/where to get one..
« Reply #16 on: February 18, 2012, 10:12:11 AM »
Cut one out of an old plastic bucket lid, those laundry detergent lids are great, flexible and easy to cut out. I have made a few little tools and things out of plastic lids. Kghost is right, it only takes 10 minutes to make one then keep it in your tool box and use it over and over again.
Sometimes...the hard thing and the right thing are the same thing!

1976 CB750F "Pegasus Bike"

http://forums.sohc4.net/index.php?topic=80492.0

nomad

  • Guest
Re: Do I need a float level gauge/where to get one..
« Reply #17 on: February 18, 2012, 11:48:51 AM »

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,786
  • Northern Virginia
Re: Do I need a float level gauge/where to get one..
« Reply #18 on: February 18, 2012, 02:03:59 PM »
I cut mine out of piece of kydex because i had some in my shop but anything will do.  Precision down to .3 mm is enough.

Offline ekpent

  • Really Old Timer ...
  • *******
  • Posts: 13,512
  • To many bikes-but lookin' for more
Re: Do I need a float level gauge/where to get one..
« Reply #19 on: February 18, 2012, 09:48:12 PM »
Andy or Zoo Mob has not been active I see since  OCT of 2011 but is doing well in a job in Muskegon, Mi and last word was happy driving a big vintage Suzuki 4 and probably still workin' on his K0. You out there Andy  ;)    Eric in Kazoo

Offline crazypj

  • I'm brill, me
  • Old Timer
  • ******
  • Posts: 4,467
  • first 100,000 miles. 1977 CB550F
Re: Do I need a float level gauge/where to get one..
« Reply #20 on: February 18, 2012, 10:02:34 PM »
K&L Supply Company list an adjustable fuel level gauge
Any shop that deals with K&L can get you one
Given the choice, I've always used a wide steel rule
I fake being smart pretty good
'you can take my word for it or argue until you find out I'm right'

Offline ekpent

  • Really Old Timer ...
  • *******
  • Posts: 13,512
  • To many bikes-but lookin' for more
Re: Do I need a float level gauge/where to get one..
« Reply #21 on: February 18, 2012, 10:07:54 PM »
Buy one of those cheap rulers in the thread.  They're cheap, and you'll use it for many occasions.  I have two or three around the house.
Yep

Offline grumpy

  • HUH?!?! ME!?!? I'm not a freakin
  • Expert
  • ****
  • Posts: 1,358
  • ..... '73 750K3 .....
Re: Do I need a float level gauge/where to get one..
« Reply #22 on: February 18, 2012, 11:11:29 PM »
I like the clear-hose-out-the-drain method.
It's the only way to really know whether the bowls are filling evenly.

Offline immortal

  • Enthusiast
  • **
  • Posts: 247
    • 1976 CB750F "Pegasus bike"
Re: Do I need a float level gauge/where to get one..
« Reply #23 on: February 19, 2012, 12:13:33 AM »
I like the clear-hose-out-the-drain method.
It's the only way to really know whether the bowls are filling evenly.

How do you do the "clear-hose-out-the-drain method" ?
Sometimes...the hard thing and the right thing are the same thing!

1976 CB750F "Pegasus Bike"

http://forums.sohc4.net/index.php?topic=80492.0

Offline dave500

  • Really Old Timer ...
  • *******
  • Posts: 16,997
  • WHAT?no gravy?
Re: Do I need a float level gauge/where to get one..
« Reply #24 on: February 19, 2012, 12:31:33 AM »
on the pd type carbs you just lift the drain hoses vertical(if they are clear)and crack the screw,itll fill up to the level they are set to and show any imbalance,,the type ones you have to remove the drain screw dumping the bowls fuel and fit tubes and do the same thing.

Offline Johnie

  • Really Old Timer ...
  • *******
  • Posts: 8,605
Re: Do I need a float level gauge/where to get one..
« Reply #25 on: February 19, 2012, 07:01:10 AM »
Here are a couple home made ones. The one on the right is made from an old floppy disc.
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA

Offline grcamna2

  • Not a
  • Really Old Timer ...
  • *******
  • Posts: 15,097
  • I love to restore & travel. Keep'em Going Strong !
Re: Do I need a float level gauge/where to get one..
« Reply #26 on: February 19, 2012, 07:37:24 AM »
K&L Supply Company list an adjustable fuel level gauge
Any shop that deals with K&L can get you one
Given the choice, I've always used a wide steel rule
+1 0n the K&L Gauge..it's very adjustable and was good quality when I got mine in 92'...$32; I modified mine so it will slide over the outer flange raised portion of the carb. body and make direct contact with the gasket surface(after having removed the gasket to get the most accurate measurement)..;I took a hacksaw and cut a slot on each side.
« Last Edit: February 19, 2012, 03:21:25 PM by grcamna2 »
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

bollingball

  • Guest
Re: Do I need a float level gauge/where to get one..
« Reply #27 on: February 19, 2012, 08:44:31 AM »
Immortal Here is a photo of the clear tube method and a cheap and easy test stand. Every thing can be set up and tested on the bench. Keep in mind this is for the 78 pd carbs.On earlier models the drain/overflow is a little different. If you look close you can see the fuel level on the #4 carb. It should be 2 to 3 mm below the gasket.
Click to enlarge picture Hope this helps.

                                     Ken
« Last Edit: February 19, 2012, 09:02:12 AM by bollingball »

Offline grumpy

  • HUH?!?! ME!?!? I'm not a freakin
  • Expert
  • ****
  • Posts: 1,358
  • ..... '73 750K3 .....
Re: Do I need a float level gauge/where to get one..
« Reply #28 on: February 19, 2012, 09:19:36 AM »
it's basically a spirit level.

attach clear fuel line to the drain plug & bend it up parallel to the side of the bowl.
the height of the fuel in the line = the height of the fuel in the bowl.
this method eliminates confounds like unevenly bent float armatures, differences in float buoyancy,  blobs of JB weld in the bowl, solar flares, etc.

« Last Edit: February 19, 2012, 09:26:47 AM by grumpy »

Offline immortal

  • Enthusiast
  • **
  • Posts: 247
    • 1976 CB750F "Pegasus bike"
Re: Do I need a float level gauge/where to get one..
« Reply #29 on: February 19, 2012, 10:53:19 AM »
Here are a couple home made ones. The one on the right is made from an old floppy disc.

Brilliant!...love it!
Sometimes...the hard thing and the right thing are the same thing!

1976 CB750F "Pegasus Bike"

http://forums.sohc4.net/index.php?topic=80492.0

Offline Really?

  • I've come to the conclusion that I AM a
  • Really Old Timer ...
  • *******
  • Posts: 5,269
Re: Do I need a float level gauge/where to get one..
« Reply #30 on: February 19, 2012, 12:42:31 PM »
I used the pocket slide rule.  Not easy to find in a store to walk up to anymore.  People in the school supply store will look at you funny wondering what on earth you are talking about.  Too young to have ever seen revenge of the nerds I guess.  Using this, be sure to measure the height of both floats.  Don't think just because you do one that the it the same.
I don't have a motorcycle, sold it ('85 Yamaha Venture Royale).  Haven't had a CB750 for over 40 years.

The Wife's Bike - 750K5
The Kid's Bike - 750K3