400ex valve problem

[sickassjay]

well as the title states i have a problem... I just finished a rebuild (2mm over). So i got it running and had real bad valve tap. No biggie just do valve adjusment. Set intake to .10 and did exhaust to .12 and tried to start, NOTHING. So I recheck the valves and the one exhaust valve (when sitting on the bike its the right one) had no movement, couldnt fit the feeler gauge under it at all. So i loosen the screw and set it again to .12. It fires and runs but ticks like a monster, shut down and recheck and now the gap is about .60 WTF???? Set back to .12 and again it wont fire. Im so confused.

[JOHNDOE83]

You should post this in the 400ex section, you may get a quicker response.

[r660guy]

Was the piston at top dead center when you adjusted the valves?

[L.Vegas400]

rotate the crank until the T and dash line up exactly, if you go past the marks DO NOT try cheat and back it up a bit.

[sickassjay]

got it figured out guys thanks. Ended up pulling valve cover and noticed timing was off. Set timing and then i noticed the pin and spring for decompression was missing so i bought those and she fired right up. Few more odds and ends and ill be out on the trails