Valve clearance and flywherl references

Grignapoco Posts : 122 Join date : 2023-10-26 Age : 35

Ho, Yesterday i Ve checked the Valve clearance on my 1100.
They are ok but i was not able tò use the references on flywheel tò find PMS of both cilynders.
I have Just a S, corresponding about at PMS of tight cyl, and a J that i was not able tò know what It means.
I checked the valves using a tube in Spark plug hole tò find PMS.
Is It normal???

GRiSO Capo Posts : 10712 Join date : 2013-05-29 Age : 67

Yes, later bikes no longer have flywheel markings, there's no need. Ignition timing is fixed and triggered by the phonic wheel on the end of the cam, (Or idler shaft on the 8V motors.).

Finding TDC as you did is perfectly fine. You don't have to be super precise. As long as the tappet is on the base circle of the cam you can set the clearance accurately enough. As long as the piston is close to TDC and on the right stroke it's fine.

I hope you didn't use 'Factory' rocker cover gaskets? They're hopeless. Get a pair of Valpollini ones, they last pretty much forever.

Grignapoco Posts : 122 Join date : 2023-10-26 Age : 35

Ah ok perfect, i was going made around this question.
Yes i have originale basket, the only One i Ve found here, anyway of It became troublesome It Will be Easy to replace.

GRiSO Capo Posts : 10712 Join date : 2013-05-29 Age : 67

They end up getting squeezed out near the bolt holes. No idea why, the mating surfaces have been the same shape since the T4 and Mk III LeMans but the CARC bikes spit theirs out. Very odd. The Valpolini gaskets are metal with some sort of squishable coating on them, they can't tear, or squeeze out, and last pretty much forever.

Fra Cristoforo Posts : 828 Join date : 2016-04-14

No marks, some swear they see marks though. I have never seen marks on anything after 05. Not on any CARC year bikes, not even CalVin.
I use a plastic straw in spark plug hole right after intake valve closes, you're on correct stroke. All the way up & set them.

Sfregiato Posts : 410 Join date : 2021-08-19

I am able to see the flywheel marks on mine, but you better start with a flashlight...
Moto, it's an "S" for "sinistra" (left) and a "D" for "destra" (right)

Grignapoco Posts : 122 Join date : 2023-10-26 Age : 35

I know (i am italian) but on mine there is no D and S Is at right cyl TDC

There is a J instead, dont know what It means

GRiSO Capo Posts : 1470 Join date : 2016-01-25 Age : 69

maybe it means jella
like in "bad luck, no-one knows where the D punch to put the timing marks is"

Grignapoco Posts : 122 Join date : 2023-10-26 Age : 35

anyway, its not a real problem, just to know if i was idiot or not Laughing

Grignapoco Posts : 122 Join date : 2023-10-26 Age : 35

another question:
i want to get guzzidiag to check my electronics, reset tps, balance throttles...ecc.
Can you suggest me a GOOD PC<-->OBD2 interface?
In the past i bought some bluetooth obd 2 dongles that are totally useless and not full working.
Thank you

GRiSO Capo Posts : 10200 Join date : 2013-09-30

Lonelec in the UK. Best source.

LINKY

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
.

.
[You must be registered and logged in to see this image.]
.
In GRiSO we trust!
.

» valve specs
» Valve clearance
» Valve Springs
» two valve 1200?
» Valve adjust, TPS etc