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Thread: Calibrate your speedometer
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05-25-2019, 06:32 PM #1
Calibrate your speedometer
I am sure this has been discussed but any boat with a paddle speedometer should use a GPS app on their phone to calibrate their speed. I checked mine and it was reading 1.7 mph slow. So when I thought I was surfing at 10.5, it was closer to 12.2. Calibrating the speedometer made a big difference in the wave.
2015 Moomba Mondo Surf Edition
WM 910 Rear sacs and 650 and 550 IBS
WS 600 WATT Amp- 4 Tower Speakers
KICKER 800 WATT Amp-Sub
Ford Raptor 400 6.2 L
Pro sport 12 Dual Batt Charger
Acme Prop 14.5 x 14.25
Winston Salem
North Carolina
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07-17-2022, 10:42 AM #2Junior Member
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How did you adjust the analog speedometer? Mine is off by about 10 mph.
2015 Mojo Surf Edition
440 Raptor
Enzo Bags
1992 Four Winns Horizon 200 - For Sale
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07-17-2022, 11:15 AM #3
Don't think he touched the analog speedo. He was messing with the digital on the 4" screen. In vessel settings you can adjust so the cruise works correctly.
2015 Moomba Mojo Surf Edition
4,000lbs
Manual Flow
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07-17-2022, 01:00 PM #42018 Supra SA400 aka The Ron Burgandy
2011 Sea-Doo Wake 155
2015 Mojo Surf, sold...2013 Axis A22 Recon Edition, sold...2010 Axis A22, sold...2007 Maxum 1800sr3, sold
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07-19-2022, 09:18 AM #5Senior Member
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I calibrate mine ever so often. I calibrate at surf speeds though, as that is when I want the speedo to be most accurate. I have the paddle wheel, not gps. When crushing my speedo doesn’t match my phone fps, however when surfing it’s spot on. I surf is deep lake water. No current.
2018 Moomba MOJO
4100lbs. ENZO's, Center Tank, IBS
780lbs. Lead Wake
Raptor 400
Surf Prop: OJ 945
2019 Ford F150 FX4
5.0L V8
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07-19-2022, 06:47 PM #6
I’m also on paddle wheel and you may need to adjust your triducer arrow. When my triducer went out and replaced under warranty, I had the dealer tech ride with me and we used a gps app to dial in the arrow on the triducer. Originally when they thought they had it lined up it was several mph off at cruising speeds.
2019 Moomba Max "MOOMBAE"
Mods: Wakemakers upgrade + 500 lbs of lead
2016 Yamaha AR192 - sold
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07-19-2022, 11:15 PM #7Junior Member
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Thanks. Will give that a try.
2015 Mojo Surf Edition
440 Raptor
Enzo Bags
1992 Four Winns Horizon 200 - For Sale
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07-20-2022, 04:40 PM #8Senior Member
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