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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>I installed three brand new HS4 carbs on my BT7 this weekend. They seem to work really well with no load and light load on some very short test drives. The jet adjusting nuts are very close to what the old ones were set to. One of the tests is to lift the piston with the lifting pin as far as you can. That is supposed to stall the engine. However, this only works on the center carb. When I test the front and rear, it just slows the engine down a bit. What have others found when they do this test? BTW, I can hardly tell a difference in the engine speed when I lift the pistons 1/32”.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>TIA,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>John<o:p></o:p></p><p class=MsoNormal>San Jose, CA <o:p></o:p></p></div></body></html>