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 GD LT GX690 Prop? 
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MMT Member

Joined: Mon Dec 15, 2014 7:21 pm
Posts: 3
Post GD LT GX690 Prop?
Looking into replacing my prop after duck season. Has anyone experimented with sizes other than the gd 9x6? Wondering if the Honda can spin a 9X7 since its a 28 gross HP motor.
Prop measures 8 5/8 from tip to tip and "cup" is not existent.
Turning 3800-3900 Rpm in the water on a 16x44 gd running 17-18 mph with me (170lb) buddy (220lb) 12 gal of gas and gear.


Tue Jan 13, 2015 11:29 pm
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Joined: Sat Dec 13, 2014 5:41 am
Posts: 532
Post Re: GD LT GX690 Prop?


Wed Jan 14, 2015 11:45 am
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Joined: Sun Sep 01, 2013 2:53 pm
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Location: Hardin County, Tx
Post Re: GD LT GX690 Prop?
I had a 9x5 on my 20hp Honda. I re-pitched it down to a 9x4 and had it balanced and recupped and it was much improved in every aspect. I picked up speed loaded and unloaded. I'm in the 4100RPM range solo at 19ish mph, 38-3900 with 2 guys and gear, 16-17mph.. I had mine done at a prop shop local to me. Worked out great.

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Wed Jan 14, 2015 7:30 pm
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Joined: Mon Dec 15, 2014 7:21 pm
Posts: 3
Post Re: GD LT GX690 Prop?
Thanks guys


Thu Jan 15, 2015 7:34 pm
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