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currently running a 25t1 yamaha prop loaded motor turns 5700. what pitch would i need to go to for a 4 blade prop to gain a few rpms

thanks for the input

Yeah if i had the room that would be the way to go but i have a 36 volt troller and only room for 4 batteries

I just swapped over to hpdi from mercury efi. On the mercury i had to run a starting battery as a deep cycle would burn up the voltage regulators. Can you use a deep cycle for a starting battery on...

2.5 below pad

been trying to find ghostcommanche anyone know where he is?

It is running 60

08 ranger z520 with 225 hpdi
trying to set up a new to me 2008 ranger z520 with 225 hpdi. The boat is rated for 250 so i know i am under powered. I have a manual 6" jack plate running a 25 t1 yamaha...

trying to set up a new to me 2008 ranger z520 with 225 hpdi. The boat is rated for 250 so i know i am under powered. I have a manual 6" jack plate running a 25 t1 yamaha prop. What should my prop...

Sorry I added the info for my motor. SO a 2.5 225 promax complete drop on will run on my mid just need swome adapter plates

Just wondering if anyone has ever put a 225 promax powerhead on a 2.5l 200 EFi mid and lower? what would be watch out and would I have to change cowlings? If it will even work thanks. Sorry my...

Sorry serial number is OG350412. What is a sync and link?

I have a 96 mariner magnum 2.5l 200 EFI. Running on a champion 190 hull so its fairly heavy. Motor has good compression 125-127 all 6 holes. Just bought complete Electrical system from CDI 2 voltage...

I have a 96 200 mariner magnum efi ser# OG350412 Was running across lake other day about 4500 rpms went to wot for about 1 min boat all of sudden fell in water like key was turned off but did not...

I have a 98 champ 190DC with 200 efi was wondering what is the best prop and what height to start have 8" plate on boat also. typically run 4-4500 rpms but do open it up some also boat roads really...

Update found bad TPS sensor appreciate all help especially Rich Z at brucatos.

Tested IAT but not tps just cant figure how was working b4 took off and now not while just sitting on shop table. Ecu plug works with other airbox that it will run with. Going to make some wires to...

Injectors cleaned 2 weeks ago

Just rebuilt my motor 96 efi 200 mariner magnum serial no. og350412. Bored motor 15 over new brgs gaskts pistons rings tdr reeds stats poppet valve all new hoses and power packs. Sent injectors off...

Looking for set up help on this thing. My dad has this 185vs 2004 with 150 vmax. You can not turn any curve running the motor over 2800rpm without it blowing out and loosing water pressure. Just got...

I am going to take it to Jay in about 2 weeks when he gets moved. Thanks for all advice

Just blew up my 96 Mariner Magnum EFI . Trying to figure out my options

There are a number of things that can cause 1 cylinder to do this and none of them are good..By saying the housing for that piston I am assuming your talking about the cylinder sleeve. Hate to bring...

Thanks for taking the time to post info. It is nice to be able to get knowledgeable advice. Thanks again to Europeanam for time and advice.

Thanks for the info. I would have never in a million years guessed a bad power pack would cause this. I was running about 5000 rpms when beep beep beep occurred. I ran on in to the landing which was...