Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: andy230 on February 03, 2008, 11:53:43 AM

Title: New valves
Post by: andy230 on February 03, 2008, 11:53:43 AM

So I got my new Yamaha valves, but we're not out the woods yet.

What is the opinion on what I propose??  Of use, or simply academic?

www.team-thumper.blogspot.com

Thanks guys.  IF you're interested, R&D Springs are on their way from the US.

Can I build this in 2 weeks (when the Big Man) is coming down with the chassis???  We'll see!

a

Title: Re: New valves
Post by: Steve Lake on February 03, 2008, 02:01:57 PM

well mate....all i know (which is very little I admit..)is, that when my head came back from 'The cylinder Head Shop' the ports looked lovely, the guides were profiled off to blend with the ports, and the valves looked very similar to your originals...and the actual seating area was a thin pencil line round the valve and the valve seat had been sort of rounded, with a matching thin seating line...the valves, as far as I'm aware, are standard Yam.

Come on Son...get a grip...you'll miss the start!! ;D

Title: Re: New valves
Post by: Steve H on February 03, 2008, 08:03:29 PM

Andy, if it were me I would concentrate on getting a reliable engine back together and put the extra effort into getting the engine in the chassis, giving you more time to set it up right for you. A couple of bhp will make sod all difference if it rides like a donkey.

Title: Re: New valves
Post by: andy230 on February 16, 2008, 09:12:23 PM

hello

I have ignored what you said steve, sorry!!   ;D

Bit of info here

http://team-thumper.blogspot.com/2008/02/devil-is-in-detail.html

cheers for now

a