yz timed, won't start
Posted December 24, 2004 - 01:58 PM
Posted December 24, 2004 - 02:28 PM
I'd replace the plug and try starting it again.
Posted December 24, 2004 - 03:14 PM
Posted December 24, 2004 - 06:56 PM
I just did the same thing (see my post below) and experienced very similar behavior. The bike started on the 2nd kick. Ran for about 5 seconds. Died and would not for the life of me start again (my worn out knee can attest to that). My jetting was a bit rich but still good for the bike at WR timing but when I finally did get it to run on YZ timing ( I live on a big hill) it seemed really rich and would smoke (black smoke) when revved.
I took the time to put it back to WR specs and it ran fine. I would check your jetting since I bet that is the problem.
To get it to start after I bumped it down the hill I pulled the plug and cleaned it (very wet!) and then started it without the choke. From my post below the person who responded said that stock jetting worked best. Again, I would bet that the previous owner modified the jetting or at a minimum needle height!
Best of luck and Merry Christmas!
Posted December 24, 2004 - 07:00 PM
Sorry one more thing!
What year is your WR? I have a 99 and have the factory manual (came with the bike). If you don't have or need the stock jetting info for that year just let me know, I would be glad to provide it!
Posted December 24, 2004 - 08:53 PM
thanks TTers and Merry Christmas.
Posted December 25, 2004 - 08:43 AM
I'm an average mechanic, at best, but IMO if the bike ran before it should run now. With my WR timing/jetting I got a few fouled plugs, since changing I haven't had this problem.
Posted December 25, 2004 - 11:05 AM
Posted December 25, 2004 - 07:49 PM
EJQ needle and 168 main.
I left the PJ and MAJ stock.
There were some really good jetting threads here a few years ago.
you might try searching for them.
It seems like EMM with a small main (160 to 162) and ELN or EKN with a 165 to 168 were also very popular.
If your looking for the threads they'll be late 01 and early 02 dates.
Posted December 26, 2004 - 12:40 AM
last plug in the bike lived up to 1.800 miles, electrode colour was always light brown
for the last 300 miles, cold bike died often when idling or gradually adding throttle to warm it up and also sometimes it cut off when hot
didnt really know what the problem was (I presumed weather changes and pilot screw)
now I changed for the new plug, and cold idling and throttle response is OK
installed the iridium plug CR8EIX, to test it for endurance, since it is twice the price of regular CR8E
Posted December 26, 2004 - 07:37 AM
Posted December 26, 2004 - 08:38 AM
Go with the 50PJ , 100 PAJ and 170 main. those are good starting points.