Vertex vs. wiseco vs. PC pistons
Posted 14 May 2012 - 09:18 AM
Is there any appreciable difference in quality between the three? There is a considerable price difference. I used Vertex with great results in my 2 strokes.
Posted 14 May 2012 - 10:28 AM
Posted 14 May 2012 - 12:52 PM
Posted 15 May 2012 - 09:51 PM
The engine got noisy, even though piston - cylinder clearance was good. Others have had this happen too.
Posted 16 May 2012 - 11:13 AM
Yeah, sort of rattley/whirring/ringing.
My buddy had the exact same type of bike and changed his piston for a JE and the sound was the same as before he changed it. Everyone heard that my engine was noisier.
Edited by D-K, 16 May 2012 - 11:14 AM.
Posted 08 July 2012 - 01:02 PM
After replacing both, the bike runs great and is quieter with the new cam chain. I still get a lot of popping on decel, but I guess that's from running pump gas on the hi comp set up. There was no visible signs of any detonation on the piston ring land, so I'm not gonna worry about that anymore.
I'm happy with my choice.
Posted 08 July 2012 - 05:35 PM
Posted 09 July 2012 - 03:05 AM
Edited by Paab, 09 July 2012 - 03:07 AM.
Posted 09 July 2012 - 03:37 AM
Usually a #42 is enough. The needle has nothing to do with the popping.
I suspect a leak somewhere. Probably the copper crush gasket between cylinder head and header pipe. Or maybe a hairline crack in the header.
Posted 09 July 2012 - 05:35 AM
Posted 09 July 2012 - 02:33 PM
I guess I can try a new plug. any other ideas? do the ECUs die slowly?
Edited by Paab, 09 July 2012 - 02:34 PM.
Posted 10 July 2012 - 08:42 AM
And try starting it up at night, if there is a crack in the header you should see flames and glowing edges.
Posted 11 July 2012 - 11:01 AM