Posted by Get yourself... on February 11, 2004 at 11:18:35:
In Reply to: Re: Piston Valve Spring Tension posted by JayW on February 11, 2004 at 04:16:02:
some Yamaha valve springs- they are strong enough to provide clean articulation but they feel like butter compared to the stock springs. I put some in my 52j soon after I got it and I can't recommend this modification highly enough.
John Cradler