Valve clearances/ tdc

[NHMike]

Make sure that you're on the compression stroke and not the exhaust stroke.

Rotate the rear wheel, watch the straw/stick/spoke you stuck in the spark plug
hole to make sure the piston is at the top of it's stroke on the side you want to adjust.
Then, grab the rockers and make sure that you can feel just a bit of play. If there is
that tiny bit of play, you're on the compression stroke. If not, you're on the exhaust
stroke and you need to rotate the engine one more revolution. You'll get it.

Repeat for the other side, moving the straw/stick/spoke to that cylinder to check that it's
at TDC on the compression stroke.


What if there is only a little play in one of the rockers?

                                                       -Stretch

[John A]

It’s rare to find one that the timing marks are accurate enough to use for super tuning when they are compared to true TDC. You’ll see a timing marker bolted to the inside of the bell housing that is visible through the timing hole on older ones that run points on tweaked Guzzi’s.

[Kev m]

Make sure that you're on the compression stroke and not the exhaust stroke.

Rotate the rear wheel, watch the straw/stick/spoke you stuck in the spark plug
hole to make sure the piston is at the top of it's stroke on the side you want to adjust.
Then, grab the rockers and make sure that you can feel just a bit of play. If there is
that tiny bit of play, you're on the compression stroke. If not, you're on the exhaust
stroke and you need to rotate the engine one more revolution. You'll get it.

Repeat for the other side, moving the straw/stick/spoke to that cylinder to check that it's
at TDC on the compression stroke.
                                                       -Stretch

What if there is only a little play in one of the rockers?
           

Then:

* You're not at TDC

or

* There's not enough play on that adjuster

The first is more likely but the second is possible.

[PeteS]

It’s rare to find one that the timing marks are accurate enough to use for super tuning when they are compared to true TDC. You’ll see a timing marker bolted to the inside of the bell housing that is visible through the timing hole on older ones that run points on tweaked Guzzi’s.

This is true. Anyone who has degreed a cam or had any reason to mount a degree wheel to find true TDC will make new marks if the factory ones are off. That is if they are smart and don’t want to go through that process again.

Pete

[NHMike]

What if there is only a little play in one of the rockers?
           



Then:

* You're not at TDC

or

* There's not enough play on that adjuster

The first is more likely but the second is possible.

I finally got her all sorted! Once I figured out the compression stroke everything fell in place sorta speak.😁 bike is running perfect now! Thanks for all your input!

[Tom H]

Congrats!

Now you know, it will be easy next time.

Tom

[Stretch]

There ya go! Gettin' the piston at TDC is a big part of the battle.

Now you COMPLETELY understand because you've done it! 

                                            -Stretch

[Huzo]

Guys..
I rang Mike while I was doing my shopping for vegetables and the explanation took 10 minutes, the guy would have been saved a LOT of heartache if someone had just picked up the damn ‘phone…

[Tom H]

Not everyone wants to post their phone number. PM it more likely.

Call international.... Not sure what that would have cost you.

VERY GOOD that you did it

Tom

[Huzo]

Not everyone wants to post their phone number. PM it more likely.

Call international.... Not sure what that would have cost you.

VERY GOOD that you did it

My plan gives me 5 hrs “free” international hours per month. I rarely use more than half, use it or lose it.
I figure I’d save that multiple times over if I stayed in New Hampshire at Mike’s place for one night.

[NHMike]

There ya go! Gettin' the piston at TDC is a big part of the battle.

Now you COMPLETELY understand because you've done it! 


Yup!!
                                            -Stretch

[Pescatore]

NHMike, feel free to ping me if you need help. I'm not far from you and frequently in NH.


Huzo, you got a place near Boston as well.

[Huzo]

NHMike, feel free to ping me if you need help. I'm not far from you and frequently in NH.


Huzo, you got a place near Boston as well.

to you Pescatore and thank you.

[NHMike]

NHMike, feel free to ping me if you need help. I'm not far from you and frequently in NH.


Huzo, you got a place near Boston as well.

Thank you sir!!