Posted March 04, 2007 - 04:10 PM
Posted March 04, 2007 - 04:19 PM
The piston dia is the same from 01-2007.
just got my bike back from the shop. rode two days, about 20miles and fried the head and valves. got big bore. je piston and all of a sudden the motor shutdown. first thing i checked was oil and coolant. both were fine.next i noticed the header pipe was completely loose at the motor. bolts were finger loose. tore it apart this morning and fried the head completely and found out the je piston in there was for a 2004 and ive got a 2005, different part numbers from JE website and just would like some feedback if possible. if the loose header could have done some damage and if the wrong year piston was put in there could that have done it as well.....thx
There is a cylinder head difference only making a compresion rario change.
Only a few cc diference in dome volume from 04-05.
I think upon a queck look that the 04 piston in a 05 would lower comp by a very small amount
And still you are working with a flat top od mild reverse dish piston.
Your jaw would hit the floor if you saw how much dome is on the Factory bikes.
Posted March 04, 2007 - 04:35 PM
Posted March 05, 2007 - 08:28 AM
Posted March 05, 2007 - 09:18 AM
anyone with some feedback is very welcome. could use someones advice that knows
PM grayracer (moderator on the YZ side) and point him to this thread. He's a wealth of knowledge and should have an answer for you.
Posted March 05, 2007 - 12:48 PM
Posted March 05, 2007 - 06:56 PM
Posted March 05, 2007 - 07:41 PM
edit, just read above post.
Posted March 06, 2007 - 06:18 PM