View Full Version : 250sx timing and rotor cap removal
z13pyz
06-21-2017, 03:09 PM
85 250sx. Need to adjust my valves. How do you get the caps out? Thanks
shortline10
06-21-2017, 04:08 PM
Remove the two 6mm bolts and pop the cap off . Have at it lol !
z13pyz
06-21-2017, 05:01 PM
I meant the rotor cap and timing cap on the side case. Not the valve covers. Looks like giant flat head screw driver bolts lol. I honestly skipped finding the t spot and just wiggled the rocker arm while moving the kicker till I felt some play.
shortline10
06-21-2017, 05:34 PM
If their stuck I use a small punch to tap it loose .
Another method I use is to remove the spark plug , insert a long screw driver in the plug hole and put the piston at TDC also making sure the cam lobes are pointed down and then your good to adjust the valves .
125Mmadness
06-21-2017, 06:12 PM
85 250sx. Need to adjust my valves. How do you get the caps out? Thanks
there is a certain size washer that fits perfectly in the slot, you can just stick screwdriver through the hole and turn it
wonderboy
06-22-2017, 06:23 AM
If you like buying tools, try this:
https://www.motionpro.com/product/08-0087
I have it and it works perfectly.
z13pyz
06-23-2017, 10:22 AM
Awesome. Thanks wonderboy
z13pyz
06-23-2017, 10:26 AM
I've run into further issues after valve adjustment. Thought I had them right on the button, for I started it and ran it for a little and heard zero chatter from the top end. Gauged both intake and exhaust at .003". It didn't make any noise till later in the day I started it again and let it idle for about 5 minutes when all of a sudden the top end chatter returned just like that out of nowhere. It's torn back down now, any suggestions?
shortline10
06-23-2017, 11:13 AM
Probably time for a timing chain .
AZ Dean
06-24-2017, 04:52 PM
If their stuck I use a small punch to tap it loose .
Another method I use is to remove the spark plug , insert a long screw driver in the plug hole and put the piston at TDC also making sure the cam lobes are pointed down and then your good to adjust the valves .
Great shortcut, thanks!
atc007
06-24-2017, 05:07 PM
I have a top quality, sharp, cold chisel, she'll tap out anything stripped like it's new. Plug,bolt or nut. I could field strip a whole bike with it and a hammer :) But only in a pinch. Try it !
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