Sticky throttle too

[Gavin]

Have appreciated reading the posts... While I have a 276 carby it was the following comment that has helped me greatly:

It happens because carbs are made from very delicate alloy that is SO easy to distort - usually by doing them up too tight. By ''too tight'' I mean only just nipped up. If I tighten mine to what I would call just about tight enough, the throttle sticks..... I now use thread seal on the nuts to stop them coming loose having just given them enough of a nip to hold the carb on.

so thanks t20racerman... the 51 A10 is really purring now with a new carby, and so responsive it's a delight to ride.

[Triton Thrasher]

The new slide will have a closer tolerance than the original. Possibly too close.

You did well to catch the worn needle before it broke.

[Stephen Foster]

Excuse the Gonzo qyestion "chaterlea25" but what is Dirko please ?

Steve...

[t20racerman]

Have appreciated reading the posts... While I have a 276 carby it was the following comment that has helped me greatly:

It happens because carbs are made from very delicate alloy that is SO easy to distort - usually by doing them up too tight. By ''too tight'' I mean only just nipped up. If I tighten mine to what I would call just about tight enough, the throttle sticks..... I now use thread seal on the nuts to stop them coming loose having just given them enough of a nip to hold the carb on.

so thanks t20racerman... the 51 A10 is really purring now with a new carby, and so responsive it's a delight to ride.

Glad to have been of assistance. :-)

I stand by what I said earlier, but I must add that my concentric carb slide keeps getting stiff too. I've done 3000 miles on my A10 since finishing the rebuild in the summer, yet still the throttle regularly goes stiff half way up at some mysterious tight spot that is impossible to find if you strip the carb. Most annoying, and I do wonder if the earlier suggestion about modern fuels is partly to blame? My carb is second hand and hardly tight, so no reason for it as far as I can see. I've found that a squirt of WD40 straight on to the slide 'cures' the problem for a decent amount of time.

[andy2565]

just spring washers under the nut is sufficient to stop the carb nipping up,which i have had experience of at full throttle on my triumph metisse,of which i had to part company with,going down hill at a scramble,over tightening will distort the body,brass slides always seem to have tight spots when you first fit them,be careful putting R in your fuel,it may smell nice but it can also sink straight to the bottom of the tank,and block the tap,its a bit difficult to pick ur bike up and shake it to mix it up,that was an old wifes tale,putting R into the fuel to lubricate the slide,of which i think comes from blokes going to the speedway and wanting their bikes to smell the same as the speedway bikes.

[Gavin]

For the uninitiated can one of you sages decode for us what "R" might be? Thanks.

[bsa-bill]

R = Castrol R an oil made from Castor beans that was used in racing and had a distinct smell, it has been known for non racers to put a bit in with the fuel just to get the smell (I have no idea who would do such a thing)

[muskrat]

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