Messages

1

Technical / Re: fouled plug

« on: March 15, 2011, 07:10:38 PM »

plug was black and wet, dont know how sticky it was.   Running a NGK br9eg resistor

2

Technical / Re: fouled plug

« on: March 14, 2011, 04:16:42 PM »

Thanks 4 all the advice  I will definately check all that stuff.  It was fresh gas  93 octane with yamalube  32:1        I usually run 40:1  but with a new top end I wanted to add a little extra oil for the first ride.  That might be why Im fouling plugs?!?!?   I should have it fixed  by the weekend

3

Technical / CR 125 compression test

« on: March 13, 2011, 06:44:10 PM »

Does anyone know how much compression a  2002 CR 125 should hold ?  I just did a top end job  and would like to check compression  just to make sure everything is good.

4

Technical / Re: fouled plug

« on: March 13, 2011, 03:51:59 PM »

Forgot to say  I ride a 2002 cr 125    I opened up the air box with 4-  1" air vents, and a new 2006 air boot.           But I didnt think I would need to rejet for those small changes. 

5

Technical / fouled plug

« on: March 13, 2011, 03:46:27 PM »

Well my first ride of the season didnt go quite as planned.  I fouled a plug right off the bat.  Luckily they had an accessories shop at the track office, where I bought another plug. The bike fired right up and ran great for an hour or so, an then after a little water break, I fired it up and I rode about 100 feet and that new plug fouled. So I tried to clean it  but no go. So I gave up for the day.    Does anyone know why the plug would foul like that ?  I never had a problem B4.   Last fall the bike ran great.  I think Im gonna do a little jettingchanges to see wat happens. Any help would be appreciated.

6

Technical / 2002 CR125 carb

« on: March 11, 2011, 07:58:41 PM »

Im having trouble with my mikuni carburetor on my 2002 cr125.  It leaks gas out the overflow tube continuously while idleing, but not while riding, as soon as I crack the throttle it stops for awhile, but starts again when it idles back down. Could the float level be off? I didnt have this problem last fall. I cleaned the crap out of that carb, so I know theres no dirt in there. And I just rebuilt topend over the winter, greased the linkage and steering stem  etc.  and did all the regular maintenance stuff.  Any help would be appreciated.       Thanks Dan