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Topics - theshootist

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CB750 / Swapping oil tanks?

« on: January 16, 2019, 09:04:03 AM »

Hi,

Does anyone know whether the oil tank from the K series bikes can be fitted to the F1? I can see that the oil lines come out of the tank differently, but not sure if that procludes putting on the earlier tank.

Thanks

CB750 / Using an F2 head on my F0

« on: May 25, 2017, 03:39:04 PM »

Hello,

My '75 F0 has recently been treated to a weisco 836cc kit and is running much better now (its still running in). Its much more lively! I'm not sure how much of the benefit is coming from the extra capacity, how much from the extra compression and how much from the fact that pressure is not just leaking past the pistons - it smoked a lot!

I know that the later F2 head has larger valves than the one on my bike. I see from the dynoman site that they have developed a weisco kit for the F2 head that makes use of the extra space and means that you won't lose compression.

My question is, given the development I've already done would an F2 head be a bad idea?

Thanks

CB750 / 836cc kit choices - do I need a new cam?

« on: November 10, 2016, 12:07:26 PM »

Hi,

I would be interested on member's thoughts on my SOHC rebuild. I'm having a set of Wiseco 836cc pistons fitted along with a copper gasket. The head is also being flowed, although the valves will remain standard size and I am sticking with the original carbs. Since I'm having the engine apart to this extent would it be a good idea to go to a different cam, along with stringer valve springs etc, or could I just have the existing cam re-profiled or left alone? Some of what I'm reading suggests a cam is necessary to get much benefit from the slight displacement increase, but there are plenty of builds where the standard item is retained.

Many thanks

CB750 / Recommended pod filters

« on: November 06, 2015, 10:43:45 AM »

Hi,

I want to remove the airbox on my F1 and replace with pod filters. In all honesty my main reason for doing this is for looks although the bike is running a little rich so it will be interesting to see if the filters lean it out. If the carbs subsequently need rejetting then I'll do that, but what are the best filters? I'm seeing K&N 40mm filters listed for the F1. Are any others recommended?

Many thanks

New Member Introductions / New member with a cb750

« on: July 22, 2015, 07:31:58 AM »

Hi,

I've got interested in older bikes over the last few years and last year finally bought a 1978 F2 SOHC that has already been turned into a cafe racer. It's turned out to be quite a project and having replaced almost every baring in the engine and the gearbox I now have a bike which runs properly. I'm looking for information on how to further improve braking and suspension. It's a fun bike.

Thanks