2008 wr valve question
Posted September 16, 2010 - 06:45 PM
tonight i checked my valves and the 2 outside intakes are a very tight .10 and the middle one i could force the .13 in but could not move it. the exhaust valve check out good though. i never checked them before so idk if they have moved or not so my question is should i worry with them or just keep riding.
a friend of mine told me on the yamahas you need to replace them instead of adjusting because the intakes are so small so that will make it suck a valve quicker if you let it wear to much.
Posted September 16, 2010 - 10:30 PM
Spec is 0.10 - 0.15mm, so you are good to go
Tight valves manifest themselves as starting issues, not cutting out issues
try turning the idle up a little
Also, what gearing you using?
When I had a 14T tooth front (with 50T rear) I had stalling issues in the corners
dropping to a 13T front really helped
it's true, that when modern valves do start to move then they will need replacing, as the hard coating has worn off (hence why they are now moving), but yamaha's are no diff to suzuki's or hondas or kwack's in that respect
Edited by GuyGraham, September 17, 2010 - 11:26 AM.
Posted September 17, 2010 - 07:20 AM