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Topics - Gavin

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CB750 / Hiya, I'm hopping over from the 550 forum

« on: September 24, 2009, 06:15:54 PM »

Well, having hung around in a dark corner of the 550 forum, I'm coming in to see what you 750 lot are up to.

Despite selling my old 550 bobber (some on here may remember it), and declaring I was taking time out from building bikes... I now want to do another project. This time I fancy a very minimalist cafe racer.

So, if anyone sees a decent 70's 750 going for a song over the winter, as long as it's a runner, do point the seller my way

Cheers all, and here's to another build

Gav

CB500/550 / issue following carb rebuild / rocker gasket change

« on: February 13, 2008, 07:51:15 PM »

Hi guys

Well, I appear to have made one or two errors somehere... my fettling was going so well for a while there!

I popped to top of the motor a couple of weeks back & replaced the gaskets and oil rings there - hoping to seal up the slowly increasing leaks from the rocker cover. She's certainly feeling like there's greater compression now

Following that I removed the carbs (leaking a little, and very grotty) and used the servicig kits from David Silver to replace all the inner parts and gaskets - the bike was running on some very old and flat gaskets all round! Glad to say that the carbs don't leak or overflow now. I also used the drill bit method to re-sync the carbs as they were a little out.

However, now we come to the issues.

1. Number 1 cylinder only starts to fire up after the engine warms a little (the motor sounds like it;s combusing much better following a clean though as there's a more rounded note to the ignition)
2. Number 4 carb now has no fuel running to it - all the others fill fine
2. There's a nasty knocking sound from inside the motor when it's on a very low idle (never there before) - this disappears the moment the clutch lever's is pulled in.

Any ideas on what daft mistakes I've made guys?

Cheers

Gav

CB500/550 / Gearshift rubber needed

« on: January 19, 2008, 08:12:21 AM »

Hi guys

I've checked David Silver and I seem to need the one part they don't stock - the little rubber boot for a new gearshift lever.

Anyone know a place that might sell one?

Cheers

CB500/550 / 550 parts available

« on: January 13, 2008, 12:34:54 PM »

Hi all

When I picked up my 550 I also got 90% of a spare engine. I've used the gearbox to rebuild my main unit but I've got various bits leftover, including some mucky by usable pistons, casings, head, cylinder block (rusty bores), cranks etc. It's a basket case as it's been broken down but it's there.

I'm likely going to keep a few handy parts, but if anyone needs casings, a head to polish, etc. Feel free to drop me a line. If I can help out then I will.

Gav