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Old 10-31-2002, 08:39 PM
grasskeeper grasskeeper is offline
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lawnboy rpms

I've got a commercial style lawnboy, and its just not running as fast as I would like at high speed. Does anyone know if there is any way to adjust the top speed? thanks
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Old 10-31-2002, 08:51 PM
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Bob Minney Bob Minney is offline
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If throttle is open all the way then adjust governor to gain high end rpm's.
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Old 10-31-2002, 09:05 PM
grasskeeper grasskeeper is offline
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I appreciate the advice Bob. But I am a little, no alot, mechanically impaired. I don't feel like lugging the mower to the shop for something so simple. Can you walk me through it a little bit. Thanks
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Old 10-31-2002, 09:28 PM
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Bob Minney Bob Minney is offline
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This is probably not exactly your carb but find the governor spring by the carb. The part with the arrow- bend it out very slightly, by gripping the vertical part, to increase rpms. Best to use a tach so you don't increase too much. If you are not sure after looking at carb send me engine # and I will see if I have pic of your carb.
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Old 10-31-2002, 09:33 PM
grasskeeper grasskeeper is offline
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thanks Bob. I'll give it a try tomorrow and see what happens. I really appreciate your help.
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Old 10-31-2002, 10:04 PM
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ksland ksland is offline
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That picture is of a briggs carb, Lawnboy 2 cycle uses plastic carbs. There is a spring loaded wing vane style governor on the top of the carb sticking into the blower housing. There are clickable "steps" on the circular vane that increases or decsreases the spring tension for the governor which in turn allows it to rev higher or lower. Just take it one click, start it, and try again and so on.
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Old 11-01-2002, 04:21 AM
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vipermanz vipermanz is offline
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here's another lb carb

you can see the rpm adjuster, it's under the air vane
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Old 11-01-2002, 05:03 AM
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Richard Martin Richard Martin is offline
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For those of you who don't know what an air vane is the part you want to rotate is #5.
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Old 11-01-2002, 10:07 PM
grasskeeper grasskeeper is offline
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I haven't had a chance to adjust it yet but this is exactly the type of advice I was looking for. Thanks alot. You guys have been a big help.
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Old 11-04-2002, 05:58 AM
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vipermanz vipermanz is offline
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thanks richard!!!, i forgot to add that detail:blush:
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