All my valves, save for one, need replaced. I ordered some valves online, they came from another bike. In this instance, I'm guessing I will have to lap them, to ensure a better fit with the seats. Is lapping difficult? Well, a better question in my case is: how easy is it to screw up?
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Success will only be possible if your second hand valves are all straight I would use the hand method with the rubber sucker it's not hard to do search YouTube and you will get the idea on how to do it start off with fine grinding paste important. when you have done grinding in all the valves make sure you clean the head throughly so every bit of the paste is removed.The big guy up there rides a Suzuki (this I know)
1981 gs850gx
1999 RF900
past bikes. RF900
TL1000s
Hayabusa
gsx 750f x2
197cc Francis Barnett
various British nails -
If you don't have the suction cup tool, you can put the valve through the guide then slip some rubber tubing
over the valve stem. This will give you something to hold as you spin the valve.
Mad83 GS750E
2006 ZX14
2004 KTM 450 EXC
2001 Yamaha Big BearComment
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http://members.dslextreme.com/users/...LAP_VALVES.pdf -This is on Basscliff's siteCowboy Up or Quit. - Run Free Lou and Rest in Peace
1981 GS550T - My First
1981 GS550L - My Eldest Daughter's - Now Sold
2007 GSF1250SA Bandit - My touring bike
Sit tall in the saddle Hold your head up high
Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"Comment
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When lapping, which cuts down faster: the valve, or the valve seat? When I just set the valve in the seat with no springs or keeper and shine a light under it, a tiny bit of light shows through. It looks like more the valve seat than the valve.Last edited by Guest; 03-28-2021, 01:43 PM.Comment
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