Topic: Need help (little help)

[lucky]

I need ONE float bowl screw for the 1969-1970
CB750 carbs.

I will pay.

Photos of the carbs.
CLICK once to enlarge photo.

[adamlwvdc36]

these are metric screws... go to a hardware store and buy them... they will come in sets of 5 probably for 2 dollars.  take it with you to match it up.

[lucky]

these are metric screws... go to a hardware store and buy them... they will come in sets of 5 probably for 2 dollars.  take it with you to match it up.

I know that I can do that but I want the drain screw to work properly. The drain screw has a hole drilled through it and another hole that is transverse. It is so the float bowl can drain without taking the screw al the way out.

[Bob Wessner]

If it helps any (I have '69 K0) that drain hole in the screw is of little advantage. If you drain the bowl(s) using that method, leaves a small amount of fuel at the bottom of the bowl which quickly evaporates and leaves a varnish build-up. I always remove the entire screw when draining the Caribs.

[lucky]

If it helps any (I have '69 K0) that drain hole in the screw is of little advantage. If you drain the bowl(s) using that method, leaves a small amount of fuel at the bottom of the bowl which quickly evaporates and leaves a varnish build-up. I always remove the entire screw when draining the Caribs.

Thanks for the suggestion. When it comes winter I will use that method.

[72500john]

do you have another drain screw of similar style that you could drill in the same fashion?

[Bob Wessner]

If it helps any (I have '69 K0) that drain hole in the screw is of little advantage. If you drain the bowl(s) using that method, leaves a small amount of fuel at the bottom of the bowl which quickly evaporates and leaves a varnish build-up. I always remove the entire screw when draining the Caribs.

Thanks for the suggestion. When it comes winter I will use that method.

Keep an empty tuna can around. Fits neatly under the Caribs and catches the screw and the gas.

[wrenchmuch]

I have some screws from later carbs. They are pre 75 screw tops but they aren't k0 carb screws.

[ekpent]

If it helps any (I have '69 K0) that drain hole in the screw is of little advantage. If you drain the bowl(s) using that method, leaves a small amount of fuel at the bottom of the bowl which quickly evaporates and leaves a varnish build-up. I always remove the entire screw when draining the Caribs.

When I put a bike in storage,and thank goodness the 750's have the clip,I just pull the whole bowl and dump as well as making sure no more gas leaks in. A friend of mine with many bikes keeps the float bowls off the whole time the bike may be layed up.That drain screw with the gasket though is a specialty item I think,never tried getting one down at the Ace Hdware store ?