YS120AC problems

[Randall Bearden]

On 9/22/04 6:11 AM, "Peter Pennisi" <pentagon.systems at bigpond.com> wrote:

>  
>  
> Hi Guys,
>  
> I have a friend of mine who is having some difficulty with his YS120AC. Please
> read ahead any forward any suggestions either to myself or Bruce.
>  
> Regards,
>  
> Peter
>  
> 
> Peter Pennisi
> Pentagon Systems QLD Pty Ltd
> P.O Box 4280
> Eight Mile Plains
> QLD 4113
> Australia
> Phone:   61+0738414234
> Fax:       61+0738414264
> Mobile:   0408007206
> Email: pentagon.systems at bigpond.com
> 
> 
> From: Jenny Hunter [mailto:jhbh at tpg.com.au]
> Sent: Tuesday, 21 September 2004 10:11 PM
> To: pentagon.systems at bigpond.com
> Subject: YS120AC problems
>  
> 
> Hi Peter,
> 
>  
> 
> I am still having problems getting my YS120AC to run properly, even after
> putting in a new piston and ring.
> 
> The engine seems to idle okay, but is sluggish to pick up revs, even after
> adjusting the needle. I have replaced the regulator plunger and ring and fuel
> line, but no improvement. It also smokes a lot in my opinion. Have you got any
> ideas! 
> 
>  
> 
> Regards,
> 
> Bruce Hunter
> 
> jhbh at tpg.com.au
> 

If the regulator is set correctly, usually flush with the case, and the rest
of the system is clean then I would look at the fuel.  I ran YS 20/20 for
years with no problems in my 91, 120SC, and my 140.  If it is not readily
available some fuel distributors will mix fuel for YS specs if you ask.  It
ran about $25.00 a gallon. Try it out.

Randall
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