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1978 CB550 K3 "running" restoration

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SPR:

--- Quote from: hairygit on April 12, 2020, 11:58:45 AM ---Also, the pilot jets could have been incorrectly adjusted because of the air leaks where the clamps were missing. The clamps need to ALL be fitted and tight, otherwise random air leaks will mess with the mixture and you will never get it running smoothly and reliably.

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--- End quote ---

I was wondering that ...... best get some ordered

Thanks

Simon

taysidedragon:

--- Quote from: SPR on April 12, 2020, 11:59:54 AM ---
--- Quote from: Nurse Julie on April 12, 2020, 11:53:56 AM ---Sound like you need a new float needle for the one that isn't springing correctly.

--- End quote ---

I was worried it may be that - I've removed pin / float black thing and the needle is clean and springing properly

So I've slightly adjusted the metal tang bit that touches it and after a little trial and error it now moves and springs like the other three

--- End quote ---

You probably need to check the float level on all 4 to make sure they're right.

SPR:

--- Quote from: taysidedragon on April 12, 2020, 12:32:29 PM ---
--- Quote from: SPR on April 12, 2020, 11:59:54 AM ---
--- Quote from: Nurse Julie on April 12, 2020, 11:53:56 AM ---Sound like you need a new float needle for the one that isn't springing correctly.

--- End quote ---

I was worried it may be that - I've removed pin / float black thing and the needle is clean and springing properly

So I've slightly adjusted the metal tang bit that touches it and after a little trial and error it now moves and springs like the other three

--- End quote ---

You probably need to check the float level on all 4 to make sure they're right.

--- End quote ---

Thanks

I know I've read it in a thread somewhere on here so will have a search

Simon

Bryanj:
Look in the 550K3 supplement and be careful on the modle as there are 2 different float heights

SPR:

--- Quote from: Bryanj on April 12, 2020, 01:42:30 PM ---Look in the 550K3 supplement and be careful on the modle as there are 2 different float heights

--- End quote ---

Yep double checked

Bit of a result .... put it all back together after having to heat the rock hard rubbers !!

Also replaced the air filter with a new one as the one in it looked original

Ran like a rocket :)

So not really sure which bit cured it but wonder if the float that was wrong was starving one of the cylinders ? or the mixture was so weak

Anyway now to sort the head gasket and progress on the other bits ... waiting on parts for a few days

Thanks for the help 

Simon

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