Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - StealthDJ

Pages: [1]
1
CB750 / Unknown Dundee collector...?
« on: August 30, 2022, 04:25:55 PM »
This may seem rather an odd question, but is anyone aware of an avid 750 collector who lives in Dundee?

To provide some background, I was stopped at a petrol station in Dundee while on my way up to Aberdeen a couple of months ago, and the gentleman in question, having spotted my F1 while in his car, turned round came back for a chat.  Mentioned he had what sounded like an epic amount of 750 spares (including sandcast parts), gave me his number and said to give him a call if there were bits that I was after.

Typically, I managed to put his number into my phone incorrectly, so now all I have is an entry that reads 'CB750' and a mobile number that's one digit too few.  Doh.

Given his enthusiasm, I figured if he was known anywhere, it'd be here, so thought it was worth a (very long) shot.  Anyone got any ideas?

2
CB750 / Carbs - F1 or F2?
« on: July 01, 2022, 09:52:48 AM »
So after my F1's 20 year sleep, I've decided to give the carbs some attention - new airbox and engine rubbers, new boots, new jets and seals, plus the whole lot going through the ultrasonic cleaner (multiple times - the previous owner was pretty liberal with WD40 as a 'protective agent', so they're caked in crud.)

But it occurs to me that I still have, from my previous ownership, a full set of F2 carbs and the accompanying airbox.

Is it worth me fitting the F2 setup instead?  I figure its newer, and slightly more technologically advanced, not to mention not having all that exposed linkage that the F1 items do.  Not sure if it'd give any power advantage, but I wouldn't complain if it did.

Or will I just end up chasing bizarre mixture problems?

3
CB750 / Under-geared F1?
« on: June 27, 2022, 04:30:19 PM »
Hi all,

After a number of years since my last one (an F2), I’ve come into ownership of another SOHC 750, this one a 1976 F1 that had been dry stored for 20 years, but with a largely unknown history of modifications.

I’ve sorted the obvious issues - rotten exhaust, worn out clutch, seized brakes, plus a few others and last weekend did 240 miles over two days, mostly motorway work.

The thing that struck me, especially from what I remember of my F2, is that it feels very under-geared.  The Delkevic exhaust isn’t exactly quiet, but 70mph (around 5k rpm) feels like I’m thrashing it, whereas my memory of the F2 is that it’d pass 100mph with relative ease.  I’ve checked the drivetrain though and it’s running 18/48, which appears to be standard.  Should I be taking a couple teeth off the rear sprocket, or is this normal?

Also, from the section of the trip where my wife was following me, it seems what shows as just over 60mph on the speedo is probably closer to 70.  Wondering if I might have the wrong speedo/drive, or if it’s more likely that the internals are gummed and a refurb is required…

Pages: [1]
SimplePortal 2.3.5 © 2008-2012, SimplePortal