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Messages - Kramer5150

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1
CB750 / Re: Exhaust info decal.
« on: January 07, 2022, 04:49:30 AM »
Mine is on the chain guard, 1974 K4.

2
CB350/400 / Re: Carb balancing
« on: April 17, 2020, 01:54:13 AM »
I love this thing:

https://www.carbtune.com/carbdtls.html

I have one of these, and it works well. The only downside is that the inner two adapters are fiddly to get in, as they are all the same size. Not like some kits, which come with two longer ones for the inner carbs.

3
CB750 / Finally got around to carb sync
« on: March 07, 2020, 04:32:35 AM »
I have had my bike, 1974 K4 750 over a year now, and it has never idled very well and had a cam chain slap sort of noise on low revs. I bought a Morgan Carbtune a couple of months ago, and have been going through the tuning on the bike, timing, valve clearance, changed plugs etc. Anyway, I decided that today was the day I would do the carb sync. I did a final timing chain tensioner adjustment, warmed the bike up and attached the vacuum pipes. The centre two adapters are quite difficult to get on, I reckon those two should be longer like the ones that come with the gauge type carb sync tools. So after a bit of swearing and picking up the adapters several times, got it all attached. A couple of the carbs needed some adjustment to the get them as near to balanced as I could. I couldn’t believe how well it idles now, and the chain noise has virtually disappeared too. Best £70 I have spent. I’m sure it would have cost at least that much to have a mechanic do it for me.

  :D
Cheers, Ian

4
New Member Introductions / G’day from Adelaide
« on: September 06, 2019, 12:36:13 PM »
Hi guys,

I have just recently joined this esteemed forum, my name is Ian, a Pom living in Adelaide, South Australia. I have a CB750K4 US import. Looks like there is a wealth of information and experience on here.

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