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Messages - Budgie955

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CB350/400 / Re: CB350F poor starter runs irratically
« on: July 23, 2026, 09:02:07 AM »
Thanks for the pointers , the air filter is good . I'm trying to get it sorted without it in place , just easier to get carbs off. Advance weights are fine too. Pots 1 and 4 run off the same coil, pot 1 is hot 2 is luke  warm. So it's not the coil . I have the carbs off again . I'm going to clean again just in case .
I'll keep you all posted
Cheers

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CB350/400 / CB350F poor starter runs irratically
« on: July 23, 2026, 06:40:14 AM »
Hi
I picked up a 350 four cheap but I'm struggling to get it to run right. It fires up eventually without choke won't rev cleanly ,just runs generally rubbish . Pots 1 and 2 down pipes are hot , 3 and 4 Luke warm.
It's running on electronic ignition, timing is spot on , valve clearances are spot on . I've had the carbs off cleaned the jets out  cleaned the bodies out with carb cleaner . Blown through with compressed air, I put the bodies in ultrasonic cleaner at 80 degrees for an hour .Float height checked ,  I put it all together, no different. Still struggles to start . Runs terrible
I've not checked compression yet as I'm waiting for the correct adapter to come . As this is my 1st four cylinder (I'm used to honda twins) just wondering if there's something I have missed ? I was convinced it was carburetion because putting the choke on killed the engine even from cold . It's also had new plugs new battery. The spark is good on all pots ,
Any advice welcomed
Thanks
Dave Sheffield UK

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