Author Topic: K4 carburettor float bowl and drain plug  (Read 787 times)

Offline willythepooh

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K4 carburettor float bowl and drain plug
« on: September 18, 2018, 11:21:57 PM »
Tried to remove the drain plug from carb no.4 and it snapped off. I then used a screw extractor and snapped that inside the bit that was left. Not happy with that, I then tried to punch it out from the inside, slipped and cracked the bowl.
Anyone got a spare they want to part with, because I’m well and truly screwed now.

Offline willythepooh

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Re: K4 carburettor float bowl and drain plug
« Reply #1 on: September 19, 2018, 05:49:17 PM »
Managed to get one off a cb77 that a mate had.
Result !

Offline philward

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Re: K4 carburettor float bowl and drain plug
« Reply #2 on: September 19, 2018, 11:16:24 PM »
Stopped using stud extractors years ago - more hassle than they are worth - glad you got sorted anyway.
Anybody got any tips for getting those drain plugs out? I've never had any luck getting them out easily
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline willythepooh

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Re: K4 carburettor float bowl and drain plug
« Reply #3 on: September 28, 2018, 09:00:21 AM »
Brake fluid is supposed to get around the threads.

I only have my float bowl on long term loan folks, so any help would be appreciated.
Is diecast metal repairable ?

Online K2-K6

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Re: K4 carburettor float bowl and drain plug
« Reply #4 on: September 28, 2018, 09:26:39 AM »
Definitely looking for another as very difficult to get repaired.

The material is really good for what it has to do in a carburettor construction but those properties don't lend themselves to any worthwhile repair.  Even someone from the magic circle, working under a black cloth in a dimly lit theatre, would stand just about chuff all chance of achieving that.

On a practical note if single bowls aren't available,  it may be more attainable to buy a used set of carbs to get any pieces you want. Price could be a bit higher but worth a look around to see what's available.

Offline RGP750

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Re: K4 carburettor float bowl and drain plug
« Reply #5 on: September 28, 2018, 11:32:41 AM »
I'll have a look on Sunday.
At Silvers tomorrow,
1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline philward

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Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Offline RGP750

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Re: K4 carburettor float bowl and drain plug
« Reply #7 on: October 01, 2018, 08:44:44 AM »
I have 2 , one is chromed but both are 1 and 2 not 3 and 4 , they will fit but the drain screw will be on the wrong side.
PM me if any good .
1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline willythepooh

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Re: K4 carburettor float bowl and drain plug
« Reply #8 on: October 13, 2018, 07:45:19 PM »
I’ve managed to get a spare one from the Stafford show for £5.
The screw in this one is stuck also 😂

 

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