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dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I can't afford the SHO


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

I know you've done a lot of research on the lithium batteries. What have you decided for your cranking battery ?
And what about the onboard charger being able to handle different types of batteries (AGM and lithium) ?
Merc refuses to approve lithium. AGM only. Many people are changing it with zero issues. I'm too chicken.

Many chargers can handle lithium and AGM together. I bought the Minn Kota Precision for that purpose.


dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Merc refuses to approve lithium. AGM only.
Has anyone given a reason ?

I suppose a fellow could ask Don over on BBC. [re-stir]


Afish85
Mississippi St. Fan
Member since Apr 2021
29 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
Getting rid of the xs?


dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:


Getting rid of the xs?
I have Optimax 250 Pro XS two-stroke.

Changing over to 250 Pro XS four-stroke with DTS. Am told it will be 2-3 months before I see it.


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Has anyone given a reason ?
Potential for shut down at WOT. It's above my head.


Afish85
Mississippi St. Fan
Member since Apr 2021
29 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I’m about to repower an Allison xb2003 , keep us posted on how the v8 works out


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canthandle
LSU Fan
Central
Member since Mar 2012
73 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I just put one on this week as well. Broke it in yesterday. Very impressive so far. I just need a smaller prop, as my 26 Fury is a bit too much for it on my rig.


Afish85
Mississippi St. Fan
Member since Apr 2021
29 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I’m scared of weight, my 280 is only 412#


DownshiftAndFloorIt
US Space Force Fan
Here
Member since Jan 2011
58158 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Don't ask me why, because I have a perfectly reliable two-stroke Pro XS (250) on my boat right now


If it helps affirm your decision, the last two outboard come-aparts I was involved in were 250 pro xs optis. 350 hours and 650 hours respectively. Spit pieces out into the cowlins.


Bama Shadow
Alabama Fan
Member since Jan 2009
425 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

I’m about to repower an Allison xb2003


Not an Ally but I had a 20 Shadow 200VT and when I went from a 389# 2.6 Yamaha to a 518# 225 Evinrude it really changed the handling of the boat. Porpoise was worse and it would launch easier than I liked. I think if you were to go with lithium trolling motor batteries that might help some but the 2003 is a light hull made for a light motor. Maybe look around on the Allison forums or Scream and Fly to see if anyone has experience with that combo.


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00
LEASTBAY
LSU Fan
Member since Aug 2007
9437 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I thought the SHO and Merc were about the same price? $19k for a 200? I'm looking at repowering at some point.


dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

I thought the SHO and Merc were about the same price? $19k for a 200?


Sorry for my lack of clarity - I think they are about the same price. I meant that I wouldn't be able to afford the time and dollars it would take to haul it in for repairs.

Just kidding. I know the Yamahas are good engines. But we haven't had much success with them on out work boats.


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20
dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

If it helps affirm your decision, the last two outboard come-aparts I was involved in were 250 pro xs optis. 350 hours and 650 hours respectively. Spit pieces out into the cowlins
That's scary on two levels.
1. I fish the spillway, so sometimes I'm 30-40 miles from the landing.
2. I heard that Mercury will soon quit manufacturing/procuring parts for the two strokes.


DownshiftAndFloorIt
US Space Force Fan
Here
Member since Jan 2011
58158 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
You'll probably get good money for your motor. Best to sell while they still run of course. My buddies couldn't get much for theirs


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AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

as my 26 Fury is a bit too much for it on my rig.
Everyone switching has had to drop in pitch. The explanation is less slip from the lower unit. Between that and the low end torque, hole shots have been impressive, even with co-angler, full wells and gear.


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TxWadingFool
Texas A&M Fan
Middle Coast
Member since Sep 2014
2885 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Are you going to get a lithium crank battery?


Have a lith cranking battery on mine, no issues so far. Once you get past the price they are so bad ass, left my perko on for a couple of weeks and a couple of my accessories pulled the battery down, got to the ramp and found the issue, a push of a button and the reserve side of the battery fires up the engine and was good to go.


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
I am just too chicken. I'll be ready when Merc pulls the trigger, and by then, the prices will be down, and everyone will have a BMS that makes them safe. Going lithium for my two TM batteries now though.


dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
4603 posts

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

Going lithium for my two TM batteries now though.
How much do they weigh and how much do they cost ?


AlxTgr
LSU Fan
Kyre Banorg
Member since Oct 2003
71229 posts
 Online 

re: Anybody Have Problems with Mercury's 8 Cylinder Four Strokes on a Bass Boat?
quote:

How much do they weigh and how much do they cost ?
So many (potential) options out there. Lots out of stock. The company I am considering now has the 45AH for $355 at 14.5 lbs, and 75AH for $599 at 20.3 lbs. Most are higher. I think Impulse(back order) is under $400 for their 50 or 54 AH.


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