Suzuki 9 9 to 20 HP Conversion Project - So Easy!

[@tomkeltescheverythingoutdo2379]

Nothing more gratifying than doing something yourself to save money.

[@Dark30Outdoors]

You got that right Tom!!

[@YourNextCast]

Nice demonstration and glad you took it out on the water too. Didn't even know you could do that. Appreciate you sharing the knowledge.

[@Dark30Outdoors]

Yeah, it was easier than I thought it would be. Thanks for watching!!

[@1224Peterson]

There is no need for a new ECU, I did this same conversion and by the advice of a Suzuki tech he said the stock ECU would adjust to the added airflow and it did, runs great. Only parts you need are the flame arrestor on seal

[@Dark30Outdoors]

Glad to know that is working for you!

[@kitkat101]

@1224Peterson Still no problems? I’m thinking about doing this but the ECU is really expensive.

[@Dark30Outdoors]

@@kitkat101 Running like a dream!

[@1224Peterson]

@@kitkat101 No issues, I've been checking the spark plugs and they look good, no signs of running too rich or too lean so the ECU is doing it's job. You will need a new prop tho, I got an 11 pitch, the stock prop on these are horrible anyways so budget for a prop as well

[@Muscleupsanddangles]

No ECU swap abd you won't get higher revs. 20hp revs much higher

[@marks6072]

with the new found torque, you can install a 12 or 13 pitch prop and get significantly more top speed out of that motor now.. Probably closer to 28-29 mph

[@Dark30Outdoors]

Awesome! Thanks for the tip!

[@UncleKennysPlace]

We used to put the 9.9 cover decals on 15 hp motors, forty-something years ago.

[@Dark30Outdoors]

That’s another way to go! 👍

[@FrankRommerts-dr4yp]

We used to do that with a 6hp Mercury cover on a 15hp Mercury, just to fool the police, my little Zodiac Cadet 310 used to go over 50kph with that 15hp Mercury, the whole boat and motor combination weighed like 90kg with a full 24 liter tank.

[@golfish8589]

​@@Dark30Outdoors Try putting the original control module in and test the speed and acceleration just by removing the air restrictor. ? ? ? Will it run a little bit better or a little worse or alot worse?.

[@BobWiersema]

Manufactures used to put 9.9 carbs on the 15's to meet the 9.9 rule when it first came out. I have a Gamefisher like that.

[@Dark30Outdoors]

@@BobWiersema Yep, and guys would do a carb conversion on them.

[@danmcg9981]

A prop change would increase speed. The 20 horse has a different prop. The ECM controls max rpm.

[@Dark30Outdoors]

Yes, mine was changed.

[@Natter20002]

To what? Did it help? Going to do this asap

[@Slaktrax]

That's a serious restrictor plate, heck it can hardly breathe.

[@Dark30Outdoors]

Haha! It certainly is!!

[@jeffconley819]

@@Dark30Outdoorsalum creek north of Columbus ??

[@Dark30Outdoors]

@@jeffconley819 yes!

[@stevenchapman5810]

Right that's almost worse than a full choked carb..

[@TheReefRobber]

That’s awesome! Never knew you could do that. Looks pretty easy.

[@Dark30Outdoors]

Yeah, it wasn't hard at all!

[@robertmccaleb3109]

Man! Your video was awesome thank you. I’m soon to get the Suzuki 9.9 2022 4 stroke short shaft. Thank you for sharing that. If I ever have the need to up it to 15hp or 20. I now know how to do it. So amazing again thank you. Your video was super informative. Great job.

[@Dark30Outdoors]

Thank you! I appreciate the kind words!!

[@tonymclean1707]

Hi Robert, I just got my 2022 9.9B today, cannot find anyone selling the 2022 ECU and parts. Did you just go to the dealer? Is yours a 00995F-24xxxx?

[@robertmccaleb3109]

@@tonymclean1707 i went ahead and got the suzuki 6hp

[@MrErik038]

Nice of you to share and make the video, thanks!

[@andrewgoodfellow2039]

Hi there, I have since been told the ecu does restrict the rev limit. The 9.9 revs to 5800 the 15 to 6000 and the 20 to 6200 that's how some of restriction works

[@Dark30Outdoors]

That makes sense!

[@ASMRLIVEFEED]

Get a 20hp ecu

[@positivepikachu3764]

Showing some love from Canada 🇨🇦 ❤

[@Dark30Outdoors]

Thanks!!

[@nutrianinja9325]

Gotcha going on all four of my channels! You should be getting your watch hours very soon! -The Reef Robber

[@Dark30Outdoors]

Awesome! Thanks buddy! Each day I check it, and they have a funny way of doing math, but I just keep going!! lol

[@nutrianinja9325]

@@Dark30Outdoors I know what you mean! You’ll get there

[@SteveFromWyoming]

Unbelievable you can convert to that much more horsepower with such few parts. Good job

[@Dark30Outdoors]

Yeah, pretty slick huh!!

[@gromitNOR83]

9.9hp engines are tailor made for specific markets and regulatory rules. like in the EU the maximum engines kids under 16 can use is a 9.9hp engine. Easier to downgrade an existing engine design to meet the hp requirement than making a whole new engine.

[@Rvndrkk]

​@@gromitNOR83def not the whole EU, for example in Finland, a 15 year old can drive boats under 5.5 meters with 20hp motors.

[@williamsaldanah3554]

Little soapy water as a lubricant helps sliding things with rubber gaskets or mounting surfaces in place a lot easier

[@Dark30Outdoors]

Thanks! I appreciate that tip!

[@8180634]

Windex is great for that, it dries nicely.

[@SynicalBeats]

Really don't want to get water near a ECM or the connector. Silicone lube spray would be better.

[@barrykruyssen]

@@SynicalBeats not really as silicone spray stays slippery, where as windex and/or soapy water dry. Thus the rubber still offers support via friction. In most cases like this I use Saliva (yes I spit on it 🙂)

[@Subvet684]

I upgraded my 15 to 20, if I knew what I know now, I would have just bought the 9.9 and upgraded it. Others have mentioned changing the prop, but when I looked it up, the standard prop was the same for both. Haven’t had it out on the water yet, but it runs fine on the Mickey Mouse hose fitting

[@Dark30Outdoors]

Awesome!! Every little bit helps! 👍

[@john6268]

Looking to do this to a Mercury 9.9 EFI. The parts seems to be the same between the 9.9/15/20 EFIs, except for the ECUs and restrictors on the 9.9/15. Hope it'll be this easy for me.

[@Dark30Outdoors]

I think it should be. 👍

[@john6268]

@@Dark30Outdoors Yep, it was very similar, and worked. The ECU was a little harder as I had to remove the lower cowling a bit since the electric starter take up some room above the ECU so I couldn't pull it out without some more space.

[@Dark30Outdoors]

@@john6268 That's awesome!

[@lakkchina]

Why not Suzuki make different Map configuration in the ECU to change power delivery?

[@donc2334]

My question to you and anyone in the group who completed the upgrade to either 15 or 20hp is whether a noticable increase in power was noted at low to mid RPMs, or only at the high end because the WOT max was increased? For example would I expect to have greater speed (and therefore greater fuel consumption) at say 3500RPM (my expected typical cruising speed) after converting to 15 or 20hp? Thanks!

[@Dark30Outdoors]

My boat sure gets up on plane a lot quicker than it did before! I don't think the increased fuel consumption is that noticeable really.

[@jimmytwotimesx2752]

@@Dark30Outdoors

[@jonlobello7151]

Hey, I sometimes have trouble finding neutral to start my motor. Do any of you guys have this problem?

[@Dark30Outdoors]

I have not experienced that at all. Only thing I can think is that if the throttle isn't at zero then that might be the deal, otherwise, I haven't had that at all.

[@andrewgoodfellow2039]

If I was doing this I would check the ignition advance between the two models and the injector size. If there the same spec I would say its the washer between the airbox and the throttle body, that is restricting down to the smaller hp

[@renegademind1833]

Question. Does the Suzuki 9.9 hp 'cowling' fit on a 20 HP (vise/versa) It be interesting to know. Never mind.. I found out it does.

[@drumminsonlive9199]

I would love to know how much difference it would be to just replace the restrictor plug with the flame arrestor with the original cd in place.

[@Dark30Outdoors]

Good question, but I don’t know if that would have a negative impact on the existing ecm.

[@bogolyskeepingitreel]

This is so cool Kyle! Nice you went from 13mph to 21mph and your take off n getting on plane quicker. Very nice!

[@Dark30Outdoors]

Yeah, since the video I have actually adjusted the tilt and my new max speed is right at 24 mph! For my little boat that's great!!

[@bogolyskeepingitreel]

@@Dark30Outdoors that’s awesome 👍

[@joedirt9600]

I have a 2021 Suzuki 9.9 and I am waiting for my warranty to expire, then I am doing this to mine. Parts are already on the shelf in the garage.

[@Dark30Outdoors]

Sounds good!!

[@gordonshumway4763]

You don't have to wait, why should you have to wait? If you have a new control box with the firmware from the 20th motor, you can safely change it right now, no one will know about it. If the motor breaks, just put everything back in, you can wear gloves so you don't leave fingerprints.

[@ParabellumFishing]

I didn't even realize you could to that! And looked like a simple job. Nice man!

[@Dark30Outdoors]

Thanks Joe!!

[@streetcat1510]

Really!! That’s All you do to convert 9.8 hp to 20 hp!! Amazing.

[@Dark30Outdoors]

It's pretty sweet!!

[@baitsanddebates4743]

The Reef Robber is on here running all your videos for you. Hope you get your hours soon!

[@marklapierre5629]

You need to swap the prop to a higher pitch to absorb the additional power. That will give you a higher top speed.

[@Dark30Outdoors]

Yes, it was previously changed! 👍

[@bucktalesoutdoors7566]

That’s awesome that you can upgrade by 10 HP that easily and for less than $500. Sweet ! Wonder if I can upgrade my Johnson 15 hp to a 30 as easily. Something to look into. 13 mph up to 21, yeah that’s a great upgrade and getting on plane that much quicker. Good job Kyle !

[@Dark30Outdoors]

If your Johnson is a 4 stroke that is fuel injected then it might be possible. The only other model that I have heard of people doing it on is the Yamaha.

[@bucktalesoutdoors7566]

@@Dark30Outdoors yep she’s a fuel injected 4 stroke but she’s also a bit older 2013. She gives me pretty much all I need.

[@igotmesothelioma]

@@bucktalesoutdoors7566 Johnson never made a 15hp fuel injection 4 stroke.

[@bucktalesoutdoors7566]

@@igotmesothelioma you’re right my 15 HP 4 stroke Johnson is carbureted. Oh well ! It goes ok.

[@lukesmith32]

​@@bucktalesoutdoors7566might be able to change the carb to a larger hp one, change fuel pump, and some other things

[@PamH420]

Hi 👋 I love your fish behind you . Thanks for sharing. It’s amazing what you can learn .

[@Dark30Outdoors]

Thanks for stopping by!!

[@schmattz_custom_lures2105]

Thats great I was under the impression you had gotten a new motor!

[@Dark30Outdoors]

No, the upgrade wasn't a purchase but rather a simple conversion!

[@MinuteontheMountain]

Nice upgrade. Great demo video, Kyle.

[@Dark30Outdoors]

Thanks! It was fairly easy to do!

[@mflodewijk7334]

I am intrested of the cost of that upgrade....

[@coyotewacker]

That was pretty cool Kyle, Thanks for sharing

[@Dark30Outdoors]

You bet! Thanks for watching!!

[@leonhart2452]

I have a 15 HP Yamaha two stroke that seems to not have much HP's. From the owners manual the 15 and 25 HP have the same bore and stroke. Anybody know the difference that gives the 25 the extra 10 HP's?

[@Dark30Outdoors]

I am not real familiar with the Yamaha's, but if it's a 2 stroke, I'd guess that it has something to do with the carburetor.

[@NordYakovleff]

Check to see what sparkplugs go on the 20 HP. Might be best to run with them.

[@Dark30Outdoors]

I believe they are the exact same. 👍

[@dennisyoung4631]

The restrictor allows running only at very low speeds…. Pumping losses go way up once you go much above Idle speed.

[@larrypugh9662]

I just came across your video. It’s straight forward no bs and informative. Keep up the good work

[@Dark30Outdoors]

Thank you! I appreciate that! 👍

[@johngoodman9380]

Larger prop will increase top speed and still give good hole shot. Try stainless cupped prop, big difference.

[@Dark30Outdoors]

I might some day, but for now I really like what I got.

[@DikaiooOne]

Does anyone know if you can upgrade the 2023 9.9 to 20hp? Is everything the same or have they changed anything?

[@Dark30Outdoors]

I don't see why not unless they changed the housing or added something and I doubt that to be the case.

[@benkanobe7500]

I could only find the links to camera gear and such and nothing for the Suzuki

[@Dark30Outdoors]

Those links are Amazon links and the parts aren't on Amazon. The part numbers are listed in the description. You'd have to order through a Suzuki parts dealer.

[@benkanobe7500]

@@Dark30Outdoors Sorry. I confuse easily.

[@martywilhelm9700]

Where did you get your parts.

[@Dark30Outdoors]

Boats.net

[@martywilhelm9700]

Thanks

[@jonlobello7151]

Two years ago I bought a 2021 lightly used 20 hp Suzuki and now you tell me I could have gotten by with a 10 hp that I could have convert to a 20 with three parts. Peterson below said I wouldn't need the new ECU so there it is. Anyway my stock 20 hp Suzuke does 24.8 on a old Mirrocraft (1968, 14 foot deep fisherman), so you're up there on speed.

[@Dark30Outdoors]

I'm not sure about skipping the ecu part. I guess you could, but I wonder if you would have injector issues after a long duration of use.

[@ShaneAusinka6]

Hi, I am thinking of doing the same to my 5hp Honda....what does ECU stand for

[@Dark30Outdoors]

@@ShaneAusinka6 electronic control unit

[@darrenschmitz2712]

Interesting to see if it uses less fuel at the same speed without that restrictor. In a similar thing where the manufacture limited the power output for the same engine, I had a Cub Cadet with a Kawasaki engine that went from 22hp to 25hp by just allowing the throttle butterfly to open fully.

[@Dark30Outdoors]

If I had to guess it likely uses a bit more fuel, but it isn't so much that it is really noticeable at all.

[@eugenepolan1750]

GM used to limit the throttle valve opening angle on some cars when they had corporate edicts on the amount of power for that size car. One of the first buff-book recommendations was to have someone fully depress the accelerator pedal while you stared down through the top of the carb - of course with the engine off and air cleaner lid removed. If you saw the throttle plate wasn't going vertical, you could look for what was stopping it short and remove that restriction.

[@Guerrero1187]

Sweet!! Do you know if I can get more hp out of my 20hp tohatsu efi 4 stroke?? Please 🙏

[@Dark30Outdoors]

Not sure. For this project, the 2 different motors are the same except the lower hp one reduces fuel flow with a restrictor plate and then uses a different EFI module. Something you could look into.

[@Spirited_Driver]

Typically all 20hp engine families are the same factory tuned up 15hp, or 9.9 (if EFI). But more than 20hp are a completely different larger engine family so no, its not possible. In the smaller 4-stroke outboards, typically the same engine families are grouped as follows; 4, 5, 6hp 8, 9.9 9.9, 15, 20 (Merc & Suzuki only) 15, 20 40, 50, 60, 70 75, 90, 115

[@ryantoner3367]

Would this be the same ECU for a 9.9 that has controlls instead of a tiller motor? I was not able to find any info only manual and electric start. No mention of motors with controlls. Thanks!

[@Dark30Outdoors]

I'm not sure. I would think they would be the same, but I don't know for sure. If you called an official parts dealer I'm sure they could tell if you if the part numbers are the same or different!

[@ryantoner3367]

@@Dark30Outdoors thank you, I will look into that.

[@gordonshumway4763]

As an expert on these motors, I state that the control boxes for electric starters and manual starters are completely different hardware and software. You don't need to buy anything, you can flash your control box with the firmware from the 20 engine, the firmware is available online.

[@ranger178]

I wonder if i can upgrade my carburetor on 20hp mercury to get more hp

[@Dark30Outdoors]

Not sure, but it’s worth looking into. 👍

[@ranger178]

@@Dark30Outdoors we have lakes limited to 20 hp and it is just short of getting boat up on plane to get decent speed with a few people in boat

[@KO-pk7df]

Like so many of the comments I read, with that big of a jump in power, the prop will have to be changed. The two are very much interlinked. Back in the day when we bought a new Mercury 125HP 2-stroke they gave us two props, a 3 bladed and a 2 bladed. Our 18ft Glaspar boat gained 5mph with the 2-blade and because it could easily pull up one full size adult on a single ski, we left the 2-bladed propeller on.

[@Dark30Outdoors]

Yes, the prop was changed when the motor was purchased.

[@joshsmith38343]

Can you do this to a Mercury 9.9 ? Mine is a 2022 non EFI and I would like to convert to a 20

[@Dark30Outdoors]

Possibly, but I don't have any experience with Mercury outboards.

[@reeceandrewrh]

Ive got a 2006 yamaha 4 stroke f8cmh 197cc do you know what can be done to this to increase power? I know the newer f8 4stroke with the 212cc is the same as the 15hp counter part and think its just a carb and possibly ecm job on that one but i cant seem to find anything for the 197cc model other than 1 aftermarket carb kit to make it a 9.9

[@reeceandrewrh]

The 15hp counter part to mine is supposed to be 323cc so its a fair bigger engine aswell

[@Dark30Outdoors]

I really don't know much about the Yamaha motors.

[@glenndavis479]

Does anybody know if I can upgrade my 5hp Suzuki 4 stroke to something a little bigger in the same manor?? I'm seriously lacking in knowledge on all things outboard related. Thanks.

[@Dark30Outdoors]

I’m not sure if they make anything with more power but the same size as the 5 hp.

[@jc136982]

you can take the side cowling off to pull the air box down and forwards, I was staring at one of the bolts the whole video

[@Dark30Outdoors]

Thanks! That's a good tip!

[@keen1957]

I remember yrs ago ( carburetor days) you could buy a merc 115 and re jet it to a 150 by using the 150 jets, under $25.

[@Dark30Outdoors]

Now, that's a heck of a value!!

[@erikteubler1214]

I guess you refer to the straight 6 Tower of Power. What a beautiful engine was that! Good memories from a long time ago.

[@MySliceOfHeavenoutdoors]

That's very cool that you can change it to a 20 HP with just changing out those 3 parts.

[@gordonshumway4763]

In fact, you can not buy anything at all, take out the metal flap from the rubber band, and the control unit ebu flash the firmware from 20hp motor, firmware is available on the network, I can share. It can be flashed with any programmer, for example piasini v4.3.

[@capsterism]

@@gordonshumway4763 Do you know where one could obtain firmware for 20 hp, electric start external controlbox?

[@gordonshumway4763]

@@capsterism Hello, buddy! Write your e-mail.

[@gordonshumway4763]

@@capsterism Hello, buddy! Write your mail.

[@capsterism]

@@gordonshumway4763 seems my posts keep getting removed... 😞

[@ronobrien7187]

It would be nice to see what the flame arrestor looks like.

[@Dark30Outdoors]

Good feedback, sorry if I missed showing that item.

[@Spirited_Driver]

He showed it, it covers the throttle body

[@QuickJoe]

What build year is your 9.9 now a 20hp suzuki.

[@Dark30Outdoors]

Mine is a 2021.

[@Dark30Outdoors]

Mine is a 2021.

[@QuickJoe]

@@Dark30Outdoors thanks for the reply. you know if it works on older models or from what year this mod is possible?

[@Dark30Outdoors]

@@QuickJoe I believe it can be done on all 4 stroke modes that have electric fuel injection.

[@huntersullivan3743]

Can you provide your model number on here please? ​@@Dark30Outdoors

[@ia6980]

So latest 9.9 efi tohatsu outboard is at 84.9lb so by changing parts to 20hp it still remains at 84.9 lb ...which is nice because at stock 20hp tohatsu, weight of engine is at 104lb...so ur saving 15lb of weight. Question is, 15lb of weight, is it worth all the hassle? Or is it just better to buy 20hp outboard?......

[@Dark30Outdoors]

I’m not familiar with the Tohatsu brand. On the Suzuki, they build their 9.9 and 20 exactly the same so both weigh the exact same.

[@HomeAndTravelUSA]

The same weight with Tohatsu 9.9 15 20hp are 104p for manual start

[@ia6980]

@@HomeAndTravelUSA thnx

[@jonathanpassaro228]

What size prop did you change to?

[@Dark30Outdoors]

I went with a 3 blade 10 pitch. Keeps me below the rev limiter.

[@tristensoutdoors8183]

I carbed up my 1974 65hp evinrude triumph to a 75hp I had to put a higher pitch prop on to get my rpms down to safe run level idk if you will have to do the same or not.

[@Dark30Outdoors]

Yeah, I bought a new prop last year because it came with a HT 4 blade! YUCK!! So, I knew I would be doing this conversion. and a 9 pitch would have put me right at the red line. So, I went with the 10 which will keep me safely under the red line! Also, a great point!!

[@donc2334]

@@Dark30Outdoors What's the diameter?

[@kakehull2566]

Does this work for a 2008 suzuki 4 stroke? (9,9)

[@Dark30Outdoors]

I'm not sure. If it is fuel injected, I guess maybe.

[@8AFilmz]

Do you think you could do the same to a Mercury 9.9?

[@Dark30Outdoors]

I'm not sure, but you could look into it.

[@kenganus8742]

when changing the 9.9 to a 20 hp does the ECM for electric start and manual the same

[@Dark30Outdoors]

I think so as it is just a control module for the fuel injection. You could as the parts supplier you order from to be sure.

[@gordonshumway4763]

As an expert on these motors, I state that the control boxes for electric starters and manual starters are completely different hardware and software. You don't need to buy anything, you can flash your control box with the firmware from the 20 engine, the firmware is available online.

[@benkanobe7500]

What can be done to the HONDA 8 HP 4 Stroke outboard?

[@Dark30Outdoors]

Not sure. I don't have experience with Honda OB's.

[@heraldchung4420]

I have a Mercury 9.9HP can I do the same?

[@Dark30Outdoors]

I'm not sure as I don't have experience with Mercury outboards, but it's worth looking into for sure!

[@tjm3900]

If bought new what would be the difference in retail price between a 10 and a 20 ?

[@Dark30Outdoors]

Not sure. That wasn’t much of a factor for me.

[@barry8458]

Great mod 👍🏼…simple unlike the old 2 stroke carb and tuned exhaust exchange…need my 9.9 Yamaha 4stroke done too but probly won’t be same mods…

[@Dark30Outdoors]

Quite simple really. Not sure if it’s the same for Yamaha, but it would be worth looking into! 👍

[@billjinkins4239]

Where did you get the parts to make the conversion? Thanks

[@Dark30Outdoors]

I ordered mine from Boats.net.

[@gordonshumway4763]

In fact, you can not buy anything at all, take out the metal flap from the rubber band, and the control unit ebu flash the firmware from 20hp motor, firmware is available on the network, I can share. It can be flashed with any programmer, for example piasini v4.3.

[@Dark30Outdoors]

Good information, but that sounds quite technical.

[@gordonshumway4763]

​@@Dark30Outdoors Here is a description of how to flash and the firmware file from a 20 motor with manual starter. drive.google.com/drive/folders/1hAlZkspz57omBZYWyYuO9dZ9kTFsA9RR

[@gordonshumway4763]

@@Dark30Outdoors Bro, I can also give you a suzuki sds diagnostic program to diagnose the motor. All you need is a Chinese k-line adapter for 8-10$ and PC win xp-10.

[@DVBkaineable]

why did you have 2 prop wakes?

[@Dark30Outdoors]

Hmmmm, that’s a very interesting question!

[@JamesJones-cx5pk]

Does it still run 1 year later?

[@Dark30Outdoors]

Absolutely! Like a champ!!

[@MrSki-tyvm]

Great mod and I am sure you saved thousands.

[@Dark30Outdoors]

Thanks, but I only saved around $40 or so. Though, technically I have an OB motor I can run as 9.9 or 20 hp. Also it says 9.9 so it’s valid on lakes that are 10 hp or less.

[@RANDYSMITHOU812]

We will be there Wed but we're not having you do a video of us this week so others can get in, hope we have a large turn out.

[@Dark30Outdoors]

Sounds great!!

[@danielson101]

oil pump?

[@jaydencooper5907]

I've got a 2013 9.9 Suzuki carby model can you do the same with it or can you only do it on the fuel injected model?

[@Dark30Outdoors]

That's a good question! I'd guess that you can, but it would obviously be different parts!

[@joshsoorlin579]

This only works on the fuel injected ones?

[@Dark30Outdoors]

I believe all of the newer models are fuel injected. I'm not sure how to do the conversion on any of the older models.

[@petergriffin8371]

do you think you could convert a 15hp 2 stroke to a 25hp?

[@Dark30Outdoors]

Im not sure if that can be done or not. I don't know much about carburators. It's a very different fuel system than a 4 stroke!

[@mohammedhadi1098]

What about the 2 stroke dt9.9 can it be 20hp .

[@Dark30Outdoors]

That would be a carb rebuild.

[@ScottWhitmire]

Is this possible with other engines & H.Ps

[@Dark30Outdoors]

I'm not certain. I have had a few people comment that it is, but I only have experience with the Suzuki 9.9.

[@tonyacerra2329]

What is the cost difference between a 10 and 20hp motor off the shelf?

[@Dark30Outdoors]

Back then it was maybe $480 so u didn’t save a ton of money, but that’s not why I did it.

[@glennjames7107]

You need to re-prop, it will make a big difference in the fuel efficiency, and a good difference in increased top end.

[@Dark30Outdoors]

Previously done.

[@staceystrickland5302]

What year(s) model of 9.9 is the upgrade compatible?

[@Dark30Outdoors]

Mine is a 2021, but I think you can do this with any model that is 4 stroke and has EFI.

[@ralph9987]

Which models and which year builds?

[@Dark30Outdoors]

I don't know all of them that this can be done with, but I am reasonably confident in saying that all of the models that are 4 stroke with electronic fuel injection then they can be converted!

[@Ds-xi2sq]

Wonder if you had a Suzuki 6 hp with a carb...Is there any hop ups for that? cost? performance?

[@Dark30Outdoors]

I'm not sure. I know the 9.9 and the 20 HP that Suzuki makes use the exact same housing, and really everything is the same except for those 3 simple parts!

[@shaundowney5956]

Can you do it on a 2023?

[@Dark30Outdoors]

I would think so, but I am unsure if they made model changes in that year model. It would certainly be worth looking into!

[@donc2334]

You mentioned that your 9.9 is 2021. So is mine, so because I see at least a few ECUs with different part numbers can you tell me which one you installed? For example 33930-89L20, or 33930-89L30, or 33930-89L40 ? The part#s for the flame arrestor and seal are straightforward. Thanks!

[@Dark30Outdoors]

The part number that I ordered is: 33930-89L20

[@donc2334]

@@Dark30Outdoors My model has elect start, remote/non tiller, power tilt and is, I think, different than yours so I'm unsure whether a different ECU is required or not for those features. It's an expensive decision to get wrong if it cannot be returned. Maybe I need to locate a 2021 DF20 with same features as mine and figure out what ECU is installed. Or maybe I'll just do the 15hp upgrade using a bored out restrictor plate and leave it at that. Decisions decisions!!

[@Dark30Outdoors]

@@donc2334 Okay, yeah mine is a tiller model. Not sure if it's different for one that is cable steer.

[@williamweirjr9749]

Will it make it use more gas?

[@Dark30Outdoors]

To some degree, yes. However, it is not really noticeable.

[@zackcarsey9813]

What year motor do you have wondering if I can do this to my 2019?

[@Dark30Outdoors]

Mine is a 2021, but I think as long as it is electronic fuel injection then it can be done!

[@zackcarsey9813]

@@Dark30Outdoors thank you I’ll try it

[@clintloranrand951]

Can DF20 SUZUKI, 2021 be upgraded?

[@jamesmurtha1355]

Do you know if this is possible on 2022 Suzuki 9.9 models?

[@Dark30Outdoors]

I don't see any reason why not. It looks like they're still using the exact same housing. So, those 3 parts should be the only thing different.

[@franklinharris3685]

Did you ever convert your 2022 over to a 20 hp

[@jamesmurtha1355]

@Franklin Harris yes! Just this weekend I did. And I referenced your video several times while doing it. Thank you! I swapped out ECU, Flame Arrestor, Silencer seal and prop (went 9" pitch to 10" pitch). My 1652 Weldbilt boat went from 12mph WOT to 21mph WOT. Amazing difference!

[@jamesmurtha1355]

@Franklin Harris I think their the same but here's what I used: 13710-89L00 Flame Arrestor 13832-89L00 Silencer Seal 33930-89L20 Engine Control Unit 58100-89L60-019 M1001 Propellor 3x9-1/4x10 (10" pitch propeller)

[@Dark30Outdoors]

@@jamesmurtha1355 That's awesome!!

[@renegademind1833]

Is there a specific range of 'yrs' these 4 stokes accept the parts he made reference to? I love the idea, something way to 'stick it to the man' price gouging boat registration fees for 10 and over.

[@Dark30Outdoors]

It should definitely work for any Suzuki 4 stroke outboard 9.9 that uses this electronic fuel injection system. I'm not certain of all the years that use this same system, but I'm sure that information is out there somewhere!

[@renegademind1833]

@@Dark30Outdoors Ok now I have a plan. What ever yr the motor is, I will compare the 'part numbers' for the specific parts, before I purchase the motor. The main objective of the mission = more horsepower for almost free. Yay (and fooling the man)

[@Dark30Outdoors]

@@renegademind1833 the value of the parts swap is very close to the value of the 20 hp motor. I have lakes restricted to 10hp or less and my motor shows itself as a 9.9! :D

[@wojciechczupta]

what is the boat size and weight?

[@Dark30Outdoors]

14.5 feet and approximately 650 lbs.

[@HuntingFarmerOfficial]

Awesome upgrade! I thought you might be boring the cylinders 30 over and putting a turbo on it. 😂

[@Dark30Outdoors]

Hahaha! Now, I'm brainstorming turbo ideas! lol

[@ia6980]

Can you do it on tohatsu? And with new hp is it heavier?

[@Dark30Outdoors]

Possibly, but I’ve never looked into it with that brand.

[@michaelreynolds1904]

But at what cost?

[@greenidguy9292]

The fact he never answered you speaks volumes. It’s likely cheaper and easier to sell the 9.9, take the money and put it towards a 20 hp.

[@ASMRLIVEFEED]

Hey will this work on the new gray susuki outboard 9.9 motor?

[@Dark30Outdoors]

@@ASMRLIVEFEED it should! 👍

[@raa6504]

So if it's carbureted no chance of upgrades?

[@Dark30Outdoors]

People have been recarbing older ob's for years! In fact, before this one came in I bought a temporary ob that was a 9.9 Johnson recarbed to a 15 hp. However, I am unfamiliar with how that is done.

[@raa6504]

@@Dark30Outdoors thank you. I will do some research on the part numbers. I have a 6hp Suzuki so i believe i can't recarb it with a higher hp carb one but I'll try

[@pokyacongcodeipokya192]

I want to ask about the 2 stroke Suzuki ??? what items are you buying ??? can you tell me ???

[@Dark30Outdoors]

I don't have any experience with the 2 stroke Suzuki outboards.

[@ryanrobertson9143]

Will this give my 2020 15 hp Suzuki to a 20 hp?

[@Dark30Outdoors]

Yes! If you want you can upgrade to 20 hp!

[@timross7046]

Works great but now your hrs are wrong and you have no more warranty ?

[@Dark30Outdoors]

I'm not concerned in the least!

[@gordonshumway4763]

If the motor breaks, just put everything back in, you can wear gloves to avoid leaving fingerprints. The engine hours are stored in the ebu memory.

[@moparshark]

Exact same thing on the 40/50/60 Zukes!

[@Dark30Outdoors]

Good to know!! 👍

[@allanweseman5433]

I just bought a 2024 Suzuki DF50 to replace my old 1999 DF40. Nice to know I can raise it to 60 later on if I have to. Thanks for the hot tip