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SOHC.co.uk Forums => CB350/400 => Topic started by: Nurse Julie on November 27, 2019, 02:27:48 PM

Title: CB400/4 CARB BOWL SCREWS / WASHERS
Post by: Nurse Julie on November 27, 2019, 02:27:48 PM
A Question to my 400/4 compatriots.
In the original parts book for our bikes, the float bowl screws are fitted without a spring washer. The CB500 carb bowl screws have a spring washer fitted. Is this an error in the 400/4 parts book or is it correct?. I sell the screws for the float bowls and carb tops for the 500 and 550 on my Ebay shop and I put the spring washers in the kit. I'm not sure whether to make a kit up of 10mm length screws for the bowls and not supply spring washers or 12mm length and supply the washers 🤔🤔🤔All the top cover screws on all 3 models have spring washers.
Thoughts please 😊😊😊
Title: Re: CB400/4 CARB BOWL SCREWS / WASHERS
Post by: rosco on November 27, 2019, 03:00:17 PM
All parts books I've seen list as 10mm  So assume no washer  Although think 12mm with washer should not cause a problem and may be even better   Ross
Title: Re: CB400/4 CARB BOWL SCREWS / WASHERS
Post by: Bryanj on November 27, 2019, 03:28:19 PM
Never noticed Julie, why not ask gerben?
Title: Re: CB400/4 CARB BOWL SCREWS / WASHERS
Post by: Nurse Julie on November 27, 2019, 04:05:44 PM
Thanks Ross and Bryan. I have contacted Gerben and he fits the 12mm screws with the spring washers.
He explained that the advantage using spring washers is you don't have to mount the screws using much force, because the spring washer will take care of it which makes total sense to me and too much force will ruin the threads of the carb housings as we know.
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