changing a valve guide? Anybody done one?

[paddlesat16]

Hi Guys

just need pointing in the right direction.
How do you get the old one out? Do I need any special tool?

The bike is my trusty yammy sr125

Thanks
____________________
I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.

[Mad_Sunday]

You need to get/make a brass "drift" to drive it out with a hammer. The drift should be a good fit inside the guide and slightly smaller than the outside diameter. Warm the head (in an oven is good) to around 100 degrees C. This will expand the ally head slightly and make the guide easier to knock out. It will also make fitting the new one easier. Tap the new one in with the drift carefully until it stops against the head.

Good luck, Pete.
____________________
Linux, it's the future..........Computer virus?.........whats that then?

[paddlesat16]

Thanks Pete, just waiting for my bits to arrive from the stealers

regards

Bob
____________________
I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.