Carburetor Question

[Gordon Brennan]

Hi Folks. Can I plug the choke hole on this Bing 1/24/153 carb? I have an Amal with a tickler, and it works fine. The Bing has a tickler as well. Is there anything else I have to do other than plug it? And does anyone have a plug to do this, or do I find a way of doing it myself?
Thanks

[firstturn]

You also have to plug the hole on the intake side of the Carburetor.  You will see the hole at about 5 O'clock when you look at the airbox end of the carburetor.  I use wood so that I can remove it later if I want to...tooth pick.

Ron Carbaugh

[Gordon Brennan]

Ron, How about the top hole where the cable goes in. If it's metric, can I put a bolt there? I have another Bing that has the hole blocked off with what looks like epoxy. Don't want to make this one quite that permenant.
Also, I found the 5 o'clock hole you mentioned. I was thinking I could tap it and put a set screw there. What do you think about the bolt and set screw solution?

[firstturn]

Bolt and set screw is fine, but I wouldn't tap the other hole.....just my $0.02.

Ron Carbaugh

[David Laite]

Just curious why block the choke hole?

1973 Penton Jackpiner
1982 Yamaha XT200
1982 Yamaha XJ650J Maxim
1987 Yamaha YZ490
2005 Honda CRF450R

[tomale]

David, I think they are talking about the later model bing carbs that had a choke similar to the Mikuni. It is really not a choke at all, it just enrichens the mix when it is activated.. I have seen a few bing carbs that look like they were set up for a choke Ie. the casting looked like it could have had one but it was never bored out... The only thing I can think of is that it will look more like the bing carb on a vintage bike.... The Bing with a choke did not show up until later... maybe 77 or 78

Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)74'
250 hare scrambler (project bike)

[Gordon Brennan]

This Bing carb is from a 74 Mudlark, on a 1251/5A Sachs, and is original to the motorcycle. The choke is a plunger type connected to a cable, with a lever on the handle bar.
The reason I wanted to plug it is to eliminate that extra cable and lever, since in my opinion, it isn't necessary. The tickler works fine. But I can't just remove it and leave it open, as it would allow dirt and water into the carb.

[tomale]

ok, that makes sense, Just so you know, the tickler is all you need for most things but up here in the northwest, we do some racing even when the ground is frozen. Two years ago I was at a race that the over night temps was in the mid 20's, the sand track was frozen but by afternoon the temp had gotten up to about 34 degree's.... on days like that, the choke is awefully nice to have. Yes they can be lit with out the choke but it is more difficult.. good luck

Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)74'
250 hare scrambler (project bike)

[Dennis Jones]

Gordon, Here is how I do it. Take the cable off the plunger and put the plunger and spring back in the hole. Now use a bolt and nut like you were saying to plug the hole in the cap. I use an acorn nut just to look neater. The spring and plunger will seal off just like normal and you can put the cable back anytime you want. I have never plugged any other hole in the carbs.

Make sure the seal on the end of the plunger is good or it will hopelessly flood as soon as you turn the gas on.

Dennis Jones