What should compression results be on 2013 Suzuki 250 with 600hrs

OCPapa

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Mar 16, 2021
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I'm looking at a used boat with a 2013 Suzuki 250 with 600hrs
Mechanic just looked it over and said the compression was good, but I think the numbers came out lower than what I was hoping (150 or higher) and 4th cylinder in particular is extra lower than the rest. 130,130,130,120,125,125
But from what I read as long as they are all within 10% of each other it is ok.
Anyone have any thought on this?
 

Ryan Gay

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Joe Ski
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Why would anyone looking for a used engine pay that much for used boat anchors? Just where in California are they legal to use?
 

dctrjayyy

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Cold or warm can change the numbers. Sounds like it was cold check. As long as they are within 10%
 
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OCPapa
Thanks for the input. I didn't know there was a difference b/w cold and warm. Compression was checked after oil and water pump service. It was probably done cold.

I just came across Suzuki service manual's suggested compression target of 175. Would a warm start give a closer compression result. What is the right way to run a compression test gets the highest numbers?
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OCPapa
Also... I see people reporting 200 compression on a new DF250 so 120-130 is a long way off. I wouldn't think a well maintained 600hr engine is half way thru its life.

Also .... why is 10% variance the target? What if compression results were below 80 but within 10%. Is there a number that is too low?

Sorry for having so many noob questions.
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dctrjayyy

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you are supposed to do it warm but it really doesn't matter if they are all close like yours. you could have a leakdown test done if you really want to see what the issues could be but IMO sounds fine.
 

a7ewizard

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I have a 2017 Df300ap with 800 hours on it. I did my first compression test at 200 hours to establish a baseline.
I didn't have a service manual at that time to follow but this is how I do my check.
Engine is cold and all plugs removed. I thread in my compression gage and hit the starter button for 2 start cycles. Throttle is at idle.
All readings were 132 to 136.
At 600 hours they ranged from 135 to 143.
At 800 hours,136 to 145.
 
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a7ewizard

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My other boat has a 2006 Df225 with about 1800 hours.
I have never done a compression test on it. But, I can assure you that engine is far from tired.
 

OCPapa

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I just got ahold of the motor SN. Owner told me the boat was repowered with a 2013 DF250, but it was done before he got the boat in 2017.
Well the SN is 25001F-51xxxx
According to Suzuki that's a 2005 motor. I'm kinda pissed, but the guys is a nice guy so I assume when he bought the boat he was given the wrong information


The boat I am looking at is a 07 Edgewater 228cc. Is it possible the dealer would have put an 05 DF250 on a new 07 hull? I think it or is it more likely that whoever repowered it bought a cheap low hour 05 DF250 and slapped it on the boat.

On NADA the value of a 2013 DF250 is almost 12k while a 2005 DF250 is only $4500. Even if the boat compression is good is it reasonable to ask for a $7k discount on the boat or does the year of the motor not make a difference as long as it is the same model with low hours.
I assume there is always wear just from age so I was thinking to ask to split the difference and reduce the boat price by $3500. Anyway I thought the boat is priced reasonably at $41,700, but now that I know the motor is older than the hull I would be happier paying $38,000.

What do you guys think?
 

dctrjayyy

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Boat prices are ridiculous right now but unless that thing is pristine with brand new electronics, aluminum trailer, everything in like new shape, then I'd keep looking. My buddy just bought a similar setup about the same age 21' for $22k
 

OCPapa

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Your friend paid 22k for a 21ft Edgewater? NADA puts an 07 21ft Edgewater at 26k. 22k is a smoking deal.

22k sounds about right for a 2000-2002 21ft Mako or Key West, but older Edgewater seem to hold their value as well as BW and GW boats.

Are you sure 40k is too much for a 2007 23ft Edgewater? I would be really bummed if I'm overpaying for it. It looked and rode great, but I would not say that it is like new.

What if I got the guy to come down to 37k based on the engine situation?
I don't have much real life experience with boats and pricing that is one reason why I am relying on NADA "Average Retail" rates. I have been watching them for almost 6 months and this deal was one of the closest. NADA 37k and the guy was willing to come down to $41,700

Any thoughts on if the age of the motor (8yr difference) should affects its value by a few thousand dollars?
2005 DF250 600hrs vs 2013 DF250 600hrs
 
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OCPapa

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My other boat has a 2006 Df225 with about 1800 hours.
I have never done a compression test on it. But, I can assure you that engine is far from tired.
Since you have an 2006 DF225. What are your thoughts on years vs hrs? Is it ok to just focus on the the 600hours or should I be concerned that the motor is 16 years old? Do any major components in the motor just wear out just due to time and not hours?

I think the hull is good and fully trust the guy didn't know.

I asked the seller to reduce the price by 3500 to account for the age, of the motor but have not received a response.
 

dctrjayyy

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Your friend paid 22k for a 21ft Edgewater? NADA puts an 07 21ft Edgewater at 26k. 22k is a smoking deal.

22k sounds about right for a 2000-2002 21ft Mako or Key West, but older Edgewater seem to hold their value as well as BW and GW boats.

Are you sure 40k is too much for a 2007 23ft Edgewater? I would be really bummed if I'm overpaying for it. It looked and rode great, but I would not say that it is like new.

What if I got the guy to come down to 37k based on the engine situation?
I don't have much real life experience with boats and pricing that is one reason why I am relying on NADA "Average Retail" rates. I have been watching them for almost 6 months and this deal was one of the closest. NADA 37k and the guy was willing to come down to $41,700

Any thoughts on if the age of the motor (8yr difference) should affects its value by a few thousand dollars?
2005 DF250 600hrs vs 2013 DF250 600hrs
No, not for an edgewater. Boat prices are really high right now so it is what it is. Good luck
 

a7ewizard

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Jun 4, 2009
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WARREN WEISENBURG
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251,PRO-LINE, WIZARD
Since you have an 2006 DF225. What are your thoughts on years vs hrs? Is it ok to just focus on the the 600hours or should I be concerned that the motor is 16 years old? Do any major components in the motor just wear out just due to time and not hours?

I think the hull is good and fully trust the guy didn't know.

I asked the seller to reduce the price by 3500 to account for the age, of the motor but have not received a response.
Not to open a can of worms.......But,

My 2006 had an ECU recall. I don't remember the reason for it. That said, your 2005 probably did also so the hours read off the ECU may be less than actual on the engine.

Your compression test is good. The mechanic gave the engine his endorsement, right? You may want to take the serial number to a Suzuki dealer and try to find any warranty or recall information on it. At least you may learn something for piece of mind.

Ultimately, take it for a test and see how she runs. Smooth idle? Starts easily? Reaches WOT rpm? Suppose th original Suzuki owner ran the piss out of it for 2 or 3 years then had the ECU changed.......1200 hours is nothing on these motors.
 

Ryan Gay

Member
Jul 31, 2015
266
180
Oklahoma
Name
Joe Ski
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19.5 deep v cuddy "OUT TO LUNCH"
I have a 2017 Df300ap with 800 hours on it. I did my first compression test at 200 hours to establish a baseline.
I didn't have a service manual at that time to follow but this is how I do my check.
Engine is cold and all plugs removed. I thread in my compression gage and hit the starter button for 2 start cycles. Throttle is at idle.
All readings were 132 to 136.
At 600 hours they ranged from 135 to 143.
At 800 hours,136 to 145.
Clean the carbon deposits in your engine and your numbers will return to lower readings.
 

DG619

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Jul 17, 2015
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Derek Grant
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I'm looking at a used boat with a 2013 Suzuki 250 with 600hrs
Mechanic just looked it over and said the compression was good, but I think the numbers came out lower than what I was hoping (150 or higher) and 4th cylinder in particular is extra lower than the rest. 130,130,130,120,125,125
But from what I read as long as they are all within 10% of each other it is ok.
Anyone have any thought on this?
For what its worth, I have a 2006 Suzuki DF225 on my boat and it has 2700 hours and runs like a bat straight out of f'ing hell. When I had it fully serviced at HH MArine last year, they did some kind of motor flush thing or something and the compression was right at factory settings of about 200.

20210331_060333.jpg
 
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OCPapa

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Mar 16, 2021
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Sam
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For what its worth, I have a 2006 Suzuki DF225 on my boat and it has 2700 hours and runs like a bat straight out of f'ing hell. When I had it fully serviced at HH MArine last year, they did some kind of motor flush thing or something and the compression was right at factory settings of about 200.

View attachment 1272462
Thanks for the insight. Do you happen to know what kind of flush was done on your Suzuki. Is there only one kind of flush that can be done?

I went ahead and pulled the trigger so now I own the Edgewater 228 with the 2005 Suzuki DF250. Boat runs great, but I'm new to boating and don't know what is the difference in motor performance when an engine has good high compression numbers at 200 vs poor low compression numbers 120-130.

I may want to do the engine flush on the next service. Was your motor flush done with another service like Impeller or something else?
 
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DG619

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Thanks for the insight. Do you happen to know what kind of flush was done on your Suzuki. Is there only one kind of flush that can be done?

I went ahead and pulled the trigger so now I own the Edgewater 228 with the 2005 Suzuki DF250. Boat runs great, but I'm new to boating and don't know what is the difference in motor performance when an engine has good high compression numbers at 200 vs poor low compression numbers 120-130.

I may want to do the engine flush on the next service. Was your motor flush done with another service like Impeller or something else?
I think on that service I did everything. Usually once a year I do impellor, spark plugs, all filters and all fluids. It may be a bit overkill, but a 2006 with 2700 hours running perfect is worth it. The new Mercury 300 is $35,000. Geezus
 
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DG619

Almost A Member
Jul 17, 2015
102
176
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Name
Derek Grant
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Tuna Tickler XL
Thanks for the insight. Do you happen to know what kind of flush was done on your Suzuki. Is there only one kind of flush that can be done?

I went ahead and pulled the trigger so now I own the Edgewater 228 with the 2005 Suzuki DF250. Boat runs great, but I'm new to boating and don't know what is the difference in motor performance when an engine has good high compression numbers at 200 vs poor low compression numbers 120-130.

I may want to do the engine flush on the next service. Was your motor flush done with another service like Impeller or something else?
Sorry, and they flush they did, I cant remember. They drain the oil, then add this stuff to the oil filler, then run the motor for like 15 minutes, then drain it, then fill with new oil, and I think run it again, drain that oil, then fill with new. It was like $200 I think, but my compression report went up about 20 pounds in each cylinder.
 
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OCPapa

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Sorry, and they flush they did, I cant remember. They drain the oil, then add this stuff to the oil filler, then run the motor for like 15 minutes, then drain it, then fill with new oil, and I think run it again, drain that oil, then fill with new. It was like $200 I think, but my compression report went up about 20 pounds in each cylinder.
Thanks for the info on the flush. Wow... impeller and spark plugs every year? Are you running over 200hrs every year? It does seem like overkill but like you said 2700hrs. I can't argue with success.
 
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