Britbike forum Forums British Motorcycle specific Brands Triumph bulletin board 1970 T120 kickstart quadrant

The first engaging tooth of my kickstart quadrant is mullered and occasionally locks whilst trying to kick over. I know that the first tooth is a half tooth lead in. Looking at the quadrant it looks fairly symmetrical and I was wondering if the other end first tooth was ground down to 1/2 tooth, could it be turned over and reused? I would doubt if all of the teeth are used at the bottom of the kick. Any thoughts?

Normal bodge is to take off the first tooth completely and then take 1/2 of the 2nd tooth off and lose some kickstart movement. Your version would work as long as the indexing allows it which it does not.

This one’s on a reversed quadrant, but Kommando’s procedure is the sensible fix.

Thanks for your input kommando. I suppose I could do that bodge as effectively that is happening anyway but the loss of important movement is a nuisance. I am not sure what you mean by ' the indexing' though? Maybe you mean that the kickstart lever would end up in the wrong position?

You’ll never miss the small arc of movement lost when you remove one tooth.

As you can see here, the end of the quadrant is not as strong as the beginning. Reversing it could cause a breakage.



It’s also worth saying that, even with all parts in perfect condition, it might still occasionally jam.

What TT said plus the kick Start lever position will change, just look at the 6 splines and how they relate to the 2 recesses.

When your quadrant is worn the mating gear must also be worn, best to renew both.

You have a point about the strength of the end of the train. I think I will be spending more money.