SOHC.co.uk Forums > CB750
CR carbs
Greebo:
--- Quote from: bladeboy on January 14, 2016, 09:46:35 PM ---So stick with standard carbs but re jet them .... I was going to put a yoshi cam in her bad idea or not??? Such a grey area thanks for yr input guys.
--- End quote ---
Don't play around trying to tune the engine you will have a headache with reliability, theses engines dont like tuning, unless its done by a sohc professional specialist & then it would only be good for the track.
I put K7 carbs on my K6, only because the originals were knackered & I'd got a good set of K7 carbs, fitted 138 main jets, needle is on last notch [bottom] ignition timing advance 10 degrees, more power & it runs like a dream.
I have a full spare set of K&N filters as new for sale [for the K6 carbs]
onethumb:
--- Quote from: Greebo on January 14, 2016, 12:14:19 PM ---
--- Quote from: bladeboy on January 13, 2016, 07:39:19 PM ---Hi, I'm thinking of fitting a set of 29mm CR carbs to my 78 cb750,
Can anyone advise me if it's a good idea or not... Cheers
--- End quote ---
I look into this a couple of years ago before building my CB 750 K6 café racer, so I agree with Bryanj stick with the stock carbs especially if its a standard engine [not tuned]
CR carbs can even cause unreliability for race tuned engines, they are also difficult to ajust in situe.
I finished up putting K&N filters on mine [stock motor] along with re-jetting which took a bit of sorting, but it goes like stink now.... ;D
Sorry to hijack but I've got the PhD carbs on my 750 f2 and will be putting cone filters on what jet size should I go to or should I just clean every thing up?
Also is there a rebuild link for the PDFs carbs anywhere?
Thanks again, steve.
--- End quote ---
onethumb:
Sorry admin but idiot know how to split the quote thing up. My bad. :-\
Sorry to hijack but I've got the PhD carbs on my 750 f2 and will be putting cone filters on what jet size should I go to or should I just clean every thing up?
Also is there a rebuild link for the PDFs carbs anywhere?
Thanks again, steve.
yozzer74:
There's rebuild kits on eBay for them and David silver's do them
SteveD CB500K0:
--- Quote from: onethumb on January 15, 2016, 05:27:09 PM ---Sorry admin but idiot know how to split the quote thing up. My bad. :-\
Sorry to hijack but I've got the PhD carbs on my 750 f2 and will be putting cone filters on what jet size should I go to or should I just clean every thing up?
Also is there a rebuild link for the PDFs carbs anywhere?
Thanks again, steve.
--- End quote ---
PhD Carbs? You need a university education to understand them!
8)
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