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<DIV><FONT face=Arial size=2><SPAN class=741422713-22042003>Hi
All,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=741422713-22042003>I tried running my
YS140 DZ for the first time on the bench (I am glad that I did now) without much
success.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=741422713-22042003>Main needle was
set to 2 turns initially and regulator untouched from factory setting. Rest
is usual with 16 x 12 APC.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=741422713-22042003>Engine started OK
and idled briefly however when I started to open up the throttle slowly it
would start to run hard lean from half throttle and then stop abruptly
(detonated). Then I opened the needle another 1/2 a turn and same result. I
then wound the main needle in to 1 1/2 turns and same result. During this
period I started to hear a rattle noise from around the mechanical pump assembly
so I stopped my testing.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=741422713-22042003>I spoke to the
Australian agent and he mentioned that some engines were getting around with
some suspect pumps. He has offered to supply a spare pump or otherwise send
the motor to him and have it repaired. (Yes, not
replaced)</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=741422713-22042003>My question to
everybody is how many people have had a pump related problem? and secondly is
there any truth that the pump may require some lapping in as he believes the
tolerances are probably a little tight.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003> </SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003>Regards,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=741422713-22042003>Peter</SPAN></FONT></DIV>
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