Author Topic: Clear tube float height check  (Read 1064 times)

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Offline Scott

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Clear tube float height check
« on: October 05, 2017, 11:38:18 AM »
Hello

What level am I looking for when doing the clear tube float height check on a CB750 K2.

I could have sworn I had this info on a little diagram I drew, but I can't find it in my note folder.

Please and thankyou
Scott

Offline Gene

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Re: Clear tube float height check
« Reply #1 on: October 05, 2017, 11:59:53 AM »
2-3 mm below the seam - where the bowl meets the body.
*1973 CB750K3 (Bow)

Offline Scott

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Re: Clear tube float height check
« Reply #2 on: October 05, 2017, 12:12:35 PM »
Cheers

I'm closer to 10mm.  I'm doing it on the bike for carb angle accuracy and it only takes 15 seconds to push them into new carb boot runbers

Offline Gene

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Re: Clear tube float height check
« Reply #3 on: October 05, 2017, 12:27:03 PM »
Cheers

I'm closer to 10mm.  I'm doing it on the bike for carb angle accuracy and it only takes 15 seconds to push them into new carb boot runbers

That's low and may lead to fuel starvation. Looks like you're on the right track tho.
*1973 CB750K3 (Bow)

Offline flybox1

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Re: Clear tube float height check
« Reply #4 on: October 05, 2017, 12:42:04 PM »
Cheers

I'm closer to 10mm.  I'm doing it on the bike for carb angle accuracy and it only takes 15 seconds to push them into new carb boot runbers

That's low and may lead to fuel starvation. Looks like you're on the right track tho.
+1
Carry on.
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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Offline Nic

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Re: Clear tube float height check
« Reply #5 on: October 05, 2017, 02:20:08 PM »
The easiest way from here is to remove carbs, set the floats to 26mm using a business card home made tool, this should get you real close to the mark. Fine tune from there with carbs on the bike.

Offline BobbyR

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Re: Clear tube float height check
« Reply #6 on: October 05, 2017, 02:38:52 PM »
You are doing it the right way. Just bring it up to the the bottom of the lip and you are right where you should be. Doing it on the bike is the real world condition.
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Offline Scott

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Re: Clear tube float height check
« Reply #7 on: October 05, 2017, 02:55:26 PM »
Cheers guys

I have an old credit card cut to suit setting the float height from ages ago.

Once again pesky work has gotten in the way of motorbike fun.

Scott

Offline Gene

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Re: Clear tube float height check
« Reply #8 on: October 05, 2017, 02:59:54 PM »
Cheers guys

I have an old credit card cut to suit setting the float height from ages ago.

Once again pesky work has gotten in the way of motorbike fun.

Scott

Stupid old work  ;D
*1973 CB750K3 (Bow)

Offline Scott

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Re: Clear tube float height check
« Reply #9 on: October 05, 2017, 03:23:02 PM »
If there is anything good about it I'm getting paid to sit my truck and look at my phone while I wait to tip off.  On a bad (or good) day it takes upto 1.5 hours.