friiy

If it is metal it should settle out of the oil,  maybe put it into a glass jar and watch it...

it is not part of a ground up governor gear is it (plastic)?

You can always take it apart and check for chafing,  or wear in diffrent spots.

Could your piston pin clip have come aprt and beat a little metal off your piston or cyclinder?

?????

Friiy

I have never seen a head warped to care about.  

Do you have a piece of the old gasket stuck on the edge somewhere?

Are all the bolts for the head the same size?  Sometimes there are three or more bolts longer around the exhaust valve too draw and dissipate heat in the block.. If these bolts are installed in the wrong spot they may bottom out before tightening the head.  Also are your threads clean in the block?  Maybe you are trying to drive these bolts into dirty packed treads  (  burned up oil grissle)  not really seating against the block with the gasket...

Are you using a old gasket?  The lead plate head gaskets seal great, but are one use only,  ridgid Gaskets with the tin sometimes burn through..

The new gasket sould be able ,I imagine, to take up .025 " easy,   they are very thick..

All I ever did was clean the head and block surface with scochbrite to take the carbon/ old gasket pieces off... I never cared to even too see one warped,  (it never mattered,  the gasket always held...)

Later, Good Luck ...   I gotta go back to work,   Gotta broke RB211,  need to look up parts.

Friiy 

Your carb is still dirty, try re-cleaning the main jet.  make sure carb cleaner is flows throught the small holes near the throttle butterfly in the carb throat.  (they control the idle mixure).

your engine is running too lean at low speed,  the govenor is opening up to reestablish speed,  it trys to rev on the higher throttle setting and recorrects back to the lower speed it can't maintain.

it will surge untill the low speed jet delivers fuel at the right amount..

The low speed jet receives all of it's fuel from the main jet "plumming"  (the calibrated hole in the carb post sticking into the bowl, or threaded jet into it)

Good Luck

Friiy

Parts ipc  cut/paste

http://www.outdoordistributors.com/pdf/Tecumseh/TECUMSEH-MODEL-OHV12-202714A-PARTS-LIST.pdf

Excuse my retarded question, I have not had one of the new primer /diaphram Briggs carbs apart....

Does this carb have 2 fuel pick-up tubes in the tank?

Does this tank have the Second chamber right below the carb like the older vaccum diaphram auto choke models with the choke control rod mounted on the diaphram?

IF so,  I have seen the second chamber have a puddle of water in it and keep the engine from starting.. (unable to pull through the shorter pickup tube to the carb body)

Hey, do me a favor and post the model, type and code..   So I can give it a good eyeball.

Thanks'

Friiy

Hey Trouts,

You should not have to use any rings or ring parts over again.   The new rings are just better for oil control and completely diffrent..    Did they send a picture or piece of paper showing the correct orientation of the new rings? 

Be sure to clean the ring grooves if you reuse the old piston (a piece of a old ring ,ground flat , to drag throught the groove and remove carbon).  Be sure to put the piston and rod back in its original orientation.   If you did not mark them, check that PDF file that Dennis put  a link to. 

Good Luck,

Friiy