Hi Guys,
My fake ISCV is shite. Is there anyway to tell a genuine one from a fake as I dont want to go down the same route again?

Thanks

 

I have exactly the same problem , the ones on Ebay are not only aftermarket, but also a different part, that being VAE06 opposed to VAE01 of the standard ISCV.

The way to tell is the genuine one has this written on it, and will be expensive!

By not working do you mean the engine just runs too fast, as this is what happened to me?

James (MSD) gave the game away, it's to do with the spring ratings.

I dismantled both of mine and noticed the genuine one has a stonger bottom spring than the aftermarket one.

Thus the valve opens more=high idle, I tried swapping the springs etc but it was never right, I still have it and may have another look at it at some point.

Martin

 

Thanks, I have stretched the bottom spring on mine and it was 10 times better as used to hunt between 500-1600 rpm when cold. Now it on hunts between about 200rpm for a much shorter period but i want to try an cure it compleley . Thanks for the info

 

No problem, it is a case of 'trial and error' really.

Martin

 

Hi.
Does anyone know, if there's a difference between VAE01 and VAE06?
Or these are the same?

 

Buy a new one from a specialist like MSD and you will get the genuine part.Unfortunately the ones which are cheap copies are going to be more trouble than they are worth. Maintaining a Cossy aint cheap! Best of luck.