Valve Spec Discrepancy and Engine Ticking

ayjay1975 · 04-17-2007, 09:39 PM

Thanks for all the responses!

I do not believe the bike has any smog equipment.

Low oil pressure is something that had crossed my mind, BUT if the machine doesnâ€™t have hydraulic lifters, why would this cause the tick? Maybe something else is sloppy and cold thick oil dampens the nose? Can I connect a gauge to the port on the head to get an oil pressure reading? Sure seems like it is comming from the head.

I checked, and my exhaust pipe is nice and tight to the head, and does not appear to be leaking or hace signs of carbon blow by.

I have had DOZENS of bikes over the years, including an old xr75 that is pushrod also, but none sound this ticky. I am concerned I have a mechanical part way out of adjustment or failing.

I pulled my valve cover off again tonight, and it looks like I have my lash set a little to tight. (That should mean it would be LESS clicky) I will set it to spec this week and see how it behaves. I am sure it will still tick. I double checked to be sure I was at tdb by pulling the plug when I checked, as well as lining up the timing marks. I buess if I was 360 off, one of the valves would be clearly open, correct?

Appreciate engine diagram, it really helped make things clear for me for the valve train works. I had assumed it had some sort of hydraulic tappet and had HOPED it might â€œpump upâ€œ over time. I am shocked at the difference between the nose level cold vs hot. Cold it sounds like a Honda, hot, sounds like junk. Seriously, worries me.

Again, appreciate the disucssion.

04-17-2007, 09:39 PM	#11
ayjay1975 Join Date: Mar 2007 Location: NY Posts: 17	Still think somethings up. Thanks for all the responses! I do not believe the bike has any smog equipment. Low oil pressure is something that had crossed my mind, BUT if the machine doesnâ€™t have hydraulic lifters, why would this cause the tick? Maybe something else is sloppy and cold thick oil dampens the nose? Can I connect a gauge to the port on the head to get an oil pressure reading? Sure seems like it is comming from the head. I checked, and my exhaust pipe is nice and tight to the head, and does not appear to be leaking or hace signs of carbon blow by. I have had DOZENS of bikes over the years, including an old xr75 that is pushrod also, but none sound this ticky. I am concerned I have a mechanical part way out of adjustment or failing. I pulled my valve cover off again tonight, and it looks like I have my lash set a little to tight. (That should mean it would be LESS clicky) I will set it to spec this week and see how it behaves. I am sure it will still tick. I double checked to be sure I was at tdb by pulling the plug when I checked, as well as lining up the timing marks. I buess if I was 360 off, one of the valves would be clearly open, correct? Appreciate engine diagram, it really helped make things clear for me for the valve train works. I had assumed it had some sort of hydraulic tappet and had HOPED it might â€œpump upâ€œ over time. I am shocked at the difference between the nose level cold vs hot. Cold it sounds like a Honda, hot, sounds like junk. Seriously, worries me. Again, appreciate the disucssion.
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