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Seafoam??

DooGuy

Active Member
Messages
112
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16
Location
Spokane, Wa
Water Crafts
2007 Sea Doo 230 Challenger Se
#1
Hey there, Seafoam safe for the supercharged 215's? Have used this snake oil in many truck engines with good success for cleaning injectors and such. Just curious what experiences people have had with in the Rotax. Pros/cons?
 


10forty2

Active Member
Messages
161
Likes
33
Location
NC
Water Crafts
2005 Sea Doo Speedster 200
#2
Been running it at 1oz/gal in my supercharged twin 155s for the past three years. Engines run like sewing machines!
 

dsm

Premium Member
Premium Member
Messages
28
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13
Location
Eastern Connecticut Shoreline
Water Crafts
2009 Challenger 180 SE 255HP (Current), 2009 Speedster 150 155HP (Former)
#3
I don't use Seafoam and so can't comment on that, but 10forty2 if you have 155's those are not supercharged, right?
 

rcookr1

Active Member
Messages
248
Likes
16
Location
USA
Water Crafts
2011 Sea-doo challenger 210 SP
#4
Hey there, Seafoam safe for the supercharged 215's? Have used this snake oil in many truck engines with good success for cleaning injectors and such. Just curious what experiences people have had with in the Rotax. Pros/cons?
I don't see why it would matter if you put in the gas it would never have contact with the supercharger.
 

10forty2

Active Member
Messages
161
Likes
33
Location
NC
Water Crafts
2005 Sea Doo Speedster 200
#5
I don't use Seafoam and so can't comment on that, but 10forty2 if you have 155's those are not supercharged, right?
If they're not, then I spent close to a grand and folded myself in half to rebuild SOMETHING on each engine last year! LOL!
 

mikidymac

Moderator
Staff member
Moderator
Messages
11,499
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1,060
Location
California
Water Crafts
2003 GTI
2001 XP
1996 XP
1996 HX
1991 Superjet
2001 Superjet
#7
Yes, it is basically snake oil. Pretty much all gas now has plenty of detergents in it.
It will not hurt anything but you would be better off using something like Marine Sta-Bil to keep the fuel fresh since it goes bad so quickly today with the added ethanol.
 

go_panthers

Premium Member
Premium Member
Messages
491
Likes
19
Location
North Carolina
Water Crafts
2010 Challenger 210 SE
1999 Sportster 1800 (Sold)
2001 LRV (Sold)
1996 SPX
#9
Pretty sure they are 155s in the 2005 SC Speedster......
I have twin 155hp naturally aspirated engines in my 2010 210 Challenger. There has never been a 155s have never been supercharged.

Based on the parts system, there are 2 Speedster 200s in that year. Both twin engines. One NA, one SC.
 

DooGuy

Active Member
Messages
112
Likes
16
Location
Spokane, Wa
Water Crafts
2007 Sea Doo 230 Challenger Se
#10
Yes, it is basically snake oil. Pretty much all gas now has plenty of detergents in it.
It will not hurt anything but you would be better off using something like Marine Sta-Bil to keep the fuel fresh since it goes bad so quickly today with the added ethanol.
Yeah I’m debating on using it etc.

I’ve been running ethanol free and going thru pretty quickly with a lot of lake time so not much sitting there. Figure want something to clean the fuel pump and the injectors without having to remove.
 

Macker29

New Member
Messages
25
Likes
3
Water Crafts
2010 Challenger 180 SE (255HP)
#11
Seafoam is absolutely fine to run in your boat. I personally think it makes the boat run smoother. I usually buy the generic version because its cheaper (Rural King, Menards, Wal-mart, etc..) I know a 30+ year boat mechanic who swears by it.

However, if you know you are going to run your boat for several hours on a given day, you might try Berryman's B12. Now that stuff is a powerful and relatively cheap.
 

10forty2

Active Member
Messages
161
Likes
33
Location
NC
Water Crafts
2005 Sea Doo Speedster 200
#12
I have twin 155hp naturally aspirated engines in my 2010 210 Challenger. There has never been a 155s have never been supercharged.

Based on the parts system, there are 2 Speedster 200s in that year. Both twin engines. One NA, one SC.
Thanks! Based on the documentation that came with my boat from the previous owner, I had always thought they were 155s. I did some Googling on it and sure enough, came up with 2005 SC Speedster 200 was combined 370HP. But I do know for a FACT that they are supercharged, because I removed the SCs and sent them off for rebuilding, so I'll have to assume that they are 185s instead of 155s. I've changed my "For Sale" ads accordingly!
 

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