OzVMX Forum

Clubroom => Tech Talk => Topic started by: Gerard De Ruyter (Twistandshout) on February 07, 2011, 03:47:50 pm

Title: Getting rockers back on the straight and narrow
Post by: Gerard De Ruyter (Twistandshout) on February 07, 2011, 03:47:50 pm

Preparing a TT250 for HEAVEN races.  Just gave it nice new top end, then pulled the cam for quick look, to find surfaces worn and rough, same with rockers.  I can replace the cam with aftermarket, just wondering what to do with the rocker faces.  I'm not too worried about losing a bit of lift if i file them smooth (as the new cam comes with big chunks), but wondering if the surface will last.  Any views?

Title: Re: Getting rockers back on the straight and narrow
Post by: cyclegod on February 07, 2011, 03:51:05 pm

Buy new ones, their cheap enough....

http://cgi.ebay.com.au/Genuine-YAMAHA-Rocker-Arms-2-adjusters-XT-SR250-/390271857366?pt=UK_Motorcycle_Parts&hash=item5ade03f2d6

Title: Re: Getting rockers back on the straight and narrow
Post by: shorelinemc on February 07, 2011, 06:22:57 pm

waggot cams can fix 02 66283795

Title: Re: Getting rockers back on the straight and narrow
Post by: Slakewell on February 07, 2011, 06:54:57 pm

You can metal spray them with tungsten powder and have them reground.

Title: Re: Getting rockers back on the straight and narrow
Post by: Curly3 on February 07, 2011, 08:52:44 pm

If the rocker has lost its hardness they'll wear faster.
If you keep the clearance adjusted correctly you won't lose any lift, but you will have to check it more often.