Insulating washers under valve springs

[charvey]

Hello all,
Does anybody fit the insulating washers under the valve spring holder on a single not having fitted them before I just wonder are they worth while and if they are, where do I either get them or the material to make them from Thanks Clive.

[will_curry]

Yes, I always use them and for no better reason than that's what Ariel did.

Valve spring cup washer, Halite, 580-34 and seemingly available from
Draganfly and possibly others too such as the spares scheme.

[dennis.t]

Got mine from Drags when ordering other parts. Although the Halite washers are cheap the postage for a pair of washers is not
Dennis

[charvey]

Thanks both of you for the replies I will get some when I am in that direction Clive.