[Noodlees]

Hi boys! I'm very glad about my bike!!! I work fine, and i look at her perfect weight balance, sounds...But just a question:

When i start the bike (kick start) at cold engine i ear a metallic sound, after a few minute, when the engine is hot, i can ear this sound: "tic, tic, tic, tic,..."
I think is the valve, but i've I checked in this way:
-I unscrewed the spark (candle);
-i've kickstart and i've look the ammeter deflect;
-I took the plunger to the highest point;
-at the right of the bike, i look the auctions valve (inside the black rectangle) and i've checked wich are free to rotate, but the left one moves slightly upwards...

The sounds (tic tic tic) can be caused by incorrect adjustment of the valves?
It's dangerous to run with this sounds or it's normal?

[ace.cafe]

When the engine is hot,  some valve noise is normal.

To check your valve clearances, wait till the engine is cold, and follow the instructions in the service manual.

If the left one moves up/down when you check it, it is probably a little loose, and needs adjustment.

It's not dangerous to run with a loose valve clearance, but it can increase wear on the valve train parts, and in extreme circumstances you might spit a pushrod.

[Noodlees]

uhm...my checking it's wrong?
However, i've read my manual, but i don't find anything about checking or adjustment valve and i know just a little bit about mechanics...I think wich i go at someone expert for adjust the valve, but the nearest authorized workshop is about 80/90 km away, i don't know if it's dangerous to go...what do you think?

[ace.cafe]

If the pushrod moves up when you check it cold, then it needs to be adjusted.

It is not dangerous, but it should be adjusted if it is moving.
You want it to be able to spin with your fingers, but not move up or down, when the engine is cold.

If you do the checking when the engine is hot, there will be movement, because the clearances expand when the engine is hot. That's why we check for zero movement when the engine is cold.

[Noodlees]

Ok...my pushrods moves up at cold engine...maybe i must adjust...You think it's more dangerous if i go at workshop (80/90 km far away from ny town?)?

[ace.cafe]

I think you should adjust it yourself.
It is very easy, and something that you should know how to do.
It is part of owner maintenance to do it.

[Noodlees]

Oh, this is true...but i don't know how i can do that...and i don't have read anything about valve adjustment!

[ace.cafe]

Oh, this is true...but i don't know how i can do that...and i don't have read anything about valve adjustment!

It's easy!

When you have the cold engine in the position to check the valves, when the engine is at TDC with both valves closed, and you feel one is loose, then do this:

Use a wrench to loosen the lock nut on the pushrod adjuster.
Then screw the adjuster out so that the pushrod becomes a little longer.
When you have eliminated the movement of the pushrod, so that it no longer moves up, but can spin when you rotate it by your fingers, then tighten up the lock nut.
Re-check that the pushrod has not become too tight when you tightened the lock nut.
If all feels well, then you can replace the cover plate, and you are finished and ready to ride.

[Noodlees]

Uhm..this is intresting but, i do some question about this:
Can i find the tdc by screw the spark, kickstart and look ammeter deflect then check the tdc from the spark hole?
lock nut is the bolt in the middle?
to lengthen the pushrod must act on the bolt at the top?
And how can i check if the pushrods is too tight?

[ace.cafe]

Uhm..this is intresting but, i do some question about this:
Can i find the tdc by screw the spark, kickstart and look ammeter deflect then check the tdc from the spark hole?
lock nut is the bolt in the middle?
to lengthen the pushrod must act on the bolt at the top?
And how can i check if the pushrods is too tight?

Yes, you can find TDC by the method you described above.

Yes, the lock nut is the nut that nut in the middle.
After you loosen it, you can then hold it with the wrench, while then using another wrench to turn the adjuster screw until it lengthens the pushrod suitably.
Then hold the adjuster with the wrench, and tighten the lock nut.

The pushrod is too tight if you cannot make it spin with your fingers.
The pushrod is too loose if you can feel it move up/down at all.

If this seems to difficult, then I would recommend taking the bike to the mechanic.

[petefletcher]

It's a bit easier if you remove the centre stud to give yourself more room.

[meilaushi]

The center stud referred to is the stud that holds the cover plate...
Check for correct valve adjustment:  Both valves can be spun by the fingers with the engine at TDC (both valves closed), but with no up and down play on the pushrods.
If they need adjustment (too tight: don't spin easily OR can be moved up and down), then remove the center stud that holds the cover plate, adjust the valve as necessary so it spins but with no up and down play with the jam nut tightened (sometimes tightening the jam nut will change the setting, so the valve, after being adjusted should be checked with the jam nut tightened).  If all's well, replace the center stud and the cover and you're done.  Shouldn't take more than 10-20 minutes. But BE SURE THE ENGINE IS COLD when you do this.

[nassos]

Nice to meet you guys
I want to do the same(adjust the valves , since they cant be moved-twisted by hand.And when the engine is getting hot they are really noisy).
I will do it as it is written above , looks easy.
I have also found a video for tuning valves , if anybody interested can go to
http://www.youtube.com/watch?v=MWIn41aYAH4
.Thanks a lot for the detailed info.
happy rides
nassos

[rick505]

For some reason the link above isn't working for me today but that certainly is a different method of finding TDC and adjusting the valves.  Depress the kick start until feel compression, give it a bit more and TDC.  Don't even remove the plug.  What does it take like 30 seconds to adjust. 

[nassos]

I did tune the valves(or at least i think so).
my question is that while both valves are finger spinning , the sound(a metalic sound tak tak tak...is still there).
Sometimes it is so loud that i think i might have to start worry about it.
I have a handmade stainless steel silencer which is LOUD and my engine gets even louder when running.When at idle it is o.k(at least the sound looks normal to my ears-but when i throttle , oh man it goes tak tak TAK TAK tak tak).
do you think it might be something else?
i dont want to go to the mechanic before i try to solve my bullet issues by myself.
Any suggestions are more than welcome.
cheers