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Baja 275 with a 496 HO

Old 07-21-2013, 05:43 PM
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Default Baja 275 with a 496 HO

My 2003 Baja 275 with a 496 HO and a 25 pitch prop used to go 67 MPH on GPS at 4800 RPM but now it goes 63 MPH at 4500 RPM, what happened?
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Old 07-21-2013, 06:18 PM
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It slowed down.

When was "used to"? What has changed since then? Weather? When did you last change fuel filters? Have you ever cleaned screen in cool fuel assy? A lot of experienced minds on OSO, you need to give more info.
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Old 07-21-2013, 07:04 PM
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Sorry but I didn't do anything. It ran 67 mph 4 weeks ago on the Ohio river hear in Cincinnati and now it doesn't. I have not cleaned the screen in the cool fuel assy. I don't even know where that is. Sorry I am new to this boat and engine, we got it 8 weeks ago. Any help would be appreciated.
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Old 07-21-2013, 09:28 PM
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Gas without ethanol compared to gas with ethanol? Mine runs a lot better without alcohol.
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Old 07-22-2013, 12:47 AM
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Air temp, humidity, river current, and amount of fuel and people could easily account for that loss in mph.
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Old 07-22-2013, 07:31 AM
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If it sets in the water a dirty bottom would do it.
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Old 07-22-2013, 06:49 PM
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Thanks guys I think my fuel filter is suspect. I did put some Lucas injected cleaner in there a probably clogged the screen. The bottom is clean, I know the boat goes faster on the GPS downstream with a fast current. I know weight effects max speed.
I bought a new filter and screen today I'll let you know.
Thanks again and maybe I'll see you at the lake Cumberland raft up August 10th.
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Old 07-22-2013, 09:20 PM
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Guardian mode
Does it beep twice at key turn?

Last edited by Back4More; 07-22-2013 at 09:23 PM.
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Old 07-23-2013, 09:32 PM
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I will check.
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Old 07-24-2013, 10:46 AM
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Up river vs down river??
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