YS 140 sport problem

[Bill Glaze]

Bob:
Like you, this is a new one on me.  The seats appear (on one of the 
heads I've got) to be cast bronze/machined inserts which are inserted 
into the casting die, with the aluminum then cast around the 
pre-positioned inserts.  Definitely indicating a return to the 
distributors.  Bill Glaze

Bob Kane wrote:

>Wow, that is a new one on me. I would send it back to
>YS Performance for a new head. My guess is the seats
>are cast in place, there is little you could do to
>repair it. 
>
>--- iflyrc24 <iflyrc24 at columbus.rr.com> wrote:
>  
>
>>I was trying to start my YS 140 Sport and could not
>>get it to fire. While cranking with the starter the
>>compression went totally away. I took the valve
>>cover off and noticed the intake valve clearance was
>>about 1/8" or so. I pushed in the valve to see if it
>>was stuck and it fell into the cylinder. I removed
>>the head and the intake valve and seat assembly came
>>out of the head fully assembled with spring and
>>keepers in tact. 
>>
>>Can the intake assembly be reinstalled in the head
>>and what holds it in place? Other than aligning the
>>intake ports is there any other alignments to watch
>>for? 
>>
>>    
>>
>
>Bob Kane
>getterflash at yahoo.com
>
>
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