How to derestrict Honda 9.9 Easy!! 50 % increase!!

[@jaredtidwell4347]

I was about to practically give my little 9 away until I saw this. Cleaned the carb and changed the plugs and actually tightened the screw for less restriction. Worked beautiful. Thanks.

[@doingstuffwithdylan4367]

I’m glad I was able to help. They seem like pretty good little motors! Thanks for commenting! Makes my day!!

[@Dee-hi5zj]

It's good to see you answer questions! Most you tubers never reply and leave their watchers hangin' even tho they keep requesting likes and subs! Screw 'em! Many watchers are desperate for a reply... SOMETHING! ...ANYTHING! Even a "sorry" is better than having someone ignore them! Take care Dylan.

[@doingstuffwithdylan4367]

I appreciate every comment I get and I don’t get so many it’s hard to respond. I appreciate you taking the time to say this I hope I can continue to answer all questions and comments as I grow.

[@rigadan]

I have a 2006 9.9 hp Honda. Long shaft. You think this screw remover or adjuster should work ?? Ty. Awesome video

[@doingstuffwithdylan4367]

Not sure what u r asking.

[@j.d.3875]

amazing how your boat just started gliding by a little more power, you were smart and lucky

[@doingstuffwithdylan4367]

Yep did not take much! Thanks for watching and the comment!

[@ryanferris7841]

I done the exact same thing with my 9.9 the next model up from yours great job 👊

[@doingstuffwithdylan4367]

Why not!! Thanks for watching and the comment! I won’t tell any one!

[@SilentBobber91]

Is there any chance you have a video on doing the coil starter assembly on this motor? It looks identical to my 8hp. I messed up thinking I could replace the pull rope without issue and now it's a mess and I can't figure out how to get the thing back together. Between the little spring that popped out and trying to get the big coil back in I had one hell of a weekend. Any tips or tricks are greatly appreciated.

[@doingstuffwithdylan4367]

Not messed with that part of this motor yet. Good luck!

[@SilentBobber91]

@@doingstuffwithdylan4367 bummer! Well if you ever feel like pullin those 3 bolts holding the assembly on and flipping it over for me to see if the pin sticks out of one of those little holes it would help tremendously 😅 got the couple and everything back in just down to figuring out this little spring 😬

[@nestorlinwood3386]

What about moving the throttle gear on tiller handle?? On mine there’s 4 slots and I see it’s 1 off from going wide open so it’s only going 3/4s throttle, wondering if changing this is the same as doing the screw mod?

[@doingstuffwithdylan4367]

Not sure really sorry. :(

[@kainenable]

Do you know what years this will work for? I am think of buying a mid nineties 4 stroke.

[@doingstuffwithdylan4367]

Not sure exactly

[@alexeveleigh6980]

Nice. Got my eye on a newer one of these, wonder if this will still work?

[@doingstuffwithdylan4367]

Not quite sure. Take the cover off and look for the restrictor screw with the yellow paint. Thanks for watching and the comment!

[@jeremymatlock2049]

What year motor is that..i bought a 15hp but he didnt know what year it was. It is like new but if i ever need part i wanted to know the year ? Looks Exactly like yours !

[@doingstuffwithdylan4367]

I think mine is an 83 or so. Look up the serial # on line to be sure. Bab something probably. Thanks for watching and the comment!

[@sheldons231]

Well I checked out my BF100 Outboard and it doesn't have a nut and bolt like you described. It has a bolt threaded in that hold a steel angle that physically stops the throttle from going ant further. But that piece also hold a part of the throttle linkage the goes to the engine. I may have to take it apart and see if the support piece is needed (like I think it is) or maybe if I was to cut it out a bit and see if it allows the throttle to turn e en more, or if it hits the bolt?

[@doingstuffwithdylan4367]

Not sure it’s the same set up.

[@jorgeestrella5721]

How did it pan out on your mod ,did it work ???

[@veganburrito]

I have the 15hp that I just got with my skiff recently, the guy started it up for me on second pull and ran fine the time I was there, he kept his tank and gave me an extra fuel line... I took it out and it kept shutting off he said it could be air leaks in the fuel lines, does this sound like it could be the issue? I'm totally new to this so I'm trying to find some more experienced folks with the same outboard :) any help appreciated.

[@doingstuffwithdylan4367]

I would get it set up too run at home. With muffs or in a large tub. Then just start messing with stuff. My guess is it’s fuel related. I have a video of me going through carb

[@quickturn66]

If the primer bulb doesn’t remain firm with the motor running, it’s ether the fuel pump or sucking air in the fuel line connections. Also make sure the vent on the fuel tank is open and stays open.

[@yaniktherien6078]

Hi man. Got the same one same year. I think the only thing different between the 9.9 and 15 are de jet / nozzle and cam shaft. Question for you... what is your compression on both cylindre? I have 160 and 164 is that ok?

[@doingstuffwithdylan4367]

That sounds high. Which is probably good. I’ll try and look it up for you. Ok if your talking 160 psi. That is defiantly high! I’m seeing 70 to 110 on the forums for a 9.9.

[@yaniktherien6078]

Yes its was 138-142 and after i clean the cylindre with seafoam. Get 164-160 with warm engine.

[@yaniktherien6078]

I paid 700$ canadian for it last week. It will be the 1st time on the lake this week-end. Hope everything will be ok.

[@yaniktherien6078]

I just find the shop manual and they say ±156psi.

[@yaniktherien6078]

I can send it to you the .pdf if you want

[@yaniktherien6078]

Hi dylan. Question. I have 2 little weep hole on the lower unit on the gear case on the left side of the feet. I just change the feet oil ans its leaking à little bit by those 2 hole some gear oil. Is thise 2 hole are over fill hole?

[@doingstuffwithdylan4367]

Not sure sorry.

[@beernutsonline]

Old q, but if your'e seeing oil other than through the fill/empty screws or through the propeller shaft, it's probably from the engine. It will seep down through the stem and out the small holes.

[@caveman_period6282]

Very interesting indeed. But the 15 hp motor has bigger capacity. How does it work?

[@doingstuffwithdylan4367]

Just let’s the carb open further. More air more fuel = more power.

[@jaredtidwell4347]

Any links on the bigger jets for the carb and the camshaft you are referring to?

[@doingstuffwithdylan4367]

Nope I’ll look around this week though.

[@JessiJohnson1]

Can you do that to a 50 hp too? How bad is it for the engine?

[@doingstuffwithdylan4367]

I don’t think so, and I don’t think it’s that bad, but I’m not an engineer either

[@davidchoez654]

Nice! I have the same one, where is the electric start?

[@doingstuffwithdylan4367]

Mine does not have electric start.

[@Yoshiimann]

Nice, I have the same model exactly. I'll have to try this if I can ever find someone to fix the shift shaft.

[@doingstuffwithdylan4367]

Nice!!

[@maxnuccio2440]

I wonder if this works on different motors like the 8hp model same year range? I'll have to look into it today when wrenching on it.

[@doingstuffwithdylan4367]

I don’t think so but it’s worth looking. Thanks for watching and the comment

[@coordinadorhscoatshonduras2463]

Hello Sir, I have a Model Motor like you. I can'nt find the impeller replacement, do you have a SKU o correlative number to buy it on line? Regards

[@doingstuffwithdylan4367]

No sir I’ll have not changed mine. Should be pretty standard. Good luck thanks for commenting!

[@Dee-hi5zj]

available on ebay!

[@mydog002]

Can you help me with what year motor this is? I have the same exact one and I can get it to crank, run for 15 seconds, then it dies. And won’t start again. I’ve cleaned the carb, new spark plugs, and I have god compression. I have no idea what to do anymore lol

[@doingstuffwithdylan4367]

I’m guessing it’s fuel related. Check spark when it won’t restart. Is the fuel new and clean?

[@jorgeestrella5721]

Change your fuel” line all the way from tank to inlet of carb , change filter and make sure all lines are sealed tight , had a similar problem changed the fuel line with prime ball including and now works like a charm

[@chadbosko8935]

From what year to what year motor is this doable on, i,d almost like to get an older one just so i can do this, i love changing or adjusting things to make them better.

[@yaniktherien6078]

I think its 97 max

[@doingstuffwithdylan4367]

Mine is from the 80s.

[@jaredtidwell4347]

What spark plugs are you running?

[@doingstuffwithdylan4367]

Not even sure I’ll look when I get home thanks for the comments!

[@tripmarshall4673]

That’s awesome!! I’m going to try this out on my Honda BF 15 it’s a 2004. I have it on a 15 fiberglass skiff lol and it’s just a hair short of putting me on plane! I hope this works

[@doingstuffwithdylan4367]

Bf 15 is the 15 horse. Not sure it will work.

[@smoothsailin7294]

I have an older BF15 (approx. 2001 model) which after 20 years' service in stock/unrestricted form will still push my 16" Starcraft aluminum jon boat to 24+ mph (per GPS) with a minimal load onboard. Some years ago my Dad also owned a similar-year Honda 9.9 hp. After operating both engines I've observed noticeable differences between the performance characteristics of the two even though they share the same engine displacement. The BF15 has a noticeably more "lumpy" character at low rpm and requires more effort to pull start. To me this suggests that the valve lift, valve timing, carburetor size (or restriction) may be different between the two. In any case both outboards have proven to be amazingly fuel-efficient and long-term reliable!

[@benkanobe7500]

Does it now exceed the redline Honda states for that motor?

[@doingstuffwithdylan4367]

Good question. Not really sure.

[@crafter170]

Yee haaaaar! I'm going to ave a look at my little honda 2.3 hp to see if it has this cheeky little restriction screw .

[@doingstuffwithdylan4367]

I hope so for ya. Get to 4 or 5 horses maybe! 🤔

[@crafter170]

@@doingstuffwithdylan4367 Yip .Give it a bash .Great wee video by the way .Very interesting .

[@mushroomsmore9641]

How much would you say that motor is worth?

[@doingstuffwithdylan4367]

Not really sure. Paid 1500 for boat with motor! Thanks for watching!

[@mushroomsmore9641]

Thanks for the response. Just picked up a lil boat with the same motor.

[@doingstuffwithdylan4367]

@@mushroomsmore9641 Did I do ok? They seem like great little motors! I got mine on a payment plan and it did not run but had before. 1500 did not seem too bad.

[@mushroomsmore9641]

Yeah i paid right around that price for mine. Just took it out today. It was great

[@doingstuffwithdylan4367]

Must be nice. Every thing is frozen here in Ohio! Thanks again for watching and the comment!

[@zakaroonetwork777]

What GPS App? To show your Knots?

[@doingstuffwithdylan4367]

Navionics Boating app.

[@semajekrad6922]

Have you heard about white balance

[@doingstuffwithdylan4367]

This was one of my early videos. I plan on making an better to see one! Thanks for the critique! And for watching!

[@oisinmcglynn4528]

Will it damage the engine. I have one of these at home

[@doingstuffwithdylan4367]

Has not damaged mine. From my understanding this is the same block as the 15 h power engines. Different carb and cam on the 15. Good luck!

[@doingstuffwithdylan4367]

@@FixNewsPlease what proof or evidence do you have of this. If Honda used the same block and carburetor on a 9.9 and a 15 horse what’s to say removing this screw will give you less motor life. I mean running something wide open throttle is probably not great for any engine but with the screw in it seem like the motor is dying to be set free like there’s more to give. A negligible difference in life is worth it to me to unleash more of this GREAT motor design. I appreciate your feed back and would be glad to look at any link you can provide to back up your theory! Thanks for watching.

[@doingstuffwithdylan4367]

Or maybe to restrict it to 9.9 smart guy!

[@RobertSmith-wu1eb]

@@doingstuffwithdylan4367 it would make since to make 1 block to serve 2 purposes. The 9.9 is really designed to be used on these smaller boats and like in my state be used on motor restricted lakes ... tons of lakes in my state are 9.9 or less lakes. So having 1 motor that can do both saves R&D , manufacturing cost and reliability. Sure you "might " lose 100-200 hours of run time over the life of a motor. But time is money and 5mph for 1 screw is well worth the loss of hours for a motor you will probably get 1500-2000 hours or more out But realistically its a 15ph motor with limiters so they can sell it to a broader demographic !!!! Evinrude 9.9 - 15hp and mercury 7.5- 9.9 are same type of idea

[@doingstuffwithdylan4367]

@@RobertSmith-wu1eb I agree thanks for the comment!

[@androopr]

Any idea what years this works on?

[@doingstuffwithdylan4367]

80’s I think. Look for the screw with yellow paint! I’ll try to make a better video!

[@androopr]

@@doingstuffwithdylan4367 much appreciated!

[@brettbecker5333]

Very cool. I life it.

[@doingstuffwithdylan4367]

Thanks man!

[@skyfual]

Bought mine new and it didn’t come with that screw or bolt

[@doingstuffwithdylan4367]

Yep it’s just the older models!

[@headsail]

@@doingstuffwithdylan4367 What year is this motor?

[@doingstuffwithdylan4367]

I believe it’s an 87 ish.

[@timsussenbach5376]

Is this the same as the 8 hp ?

[@doingstuffwithdylan4367]

I don’t think so. The 9.9 has the same block and head as the 15 h Different cams I think. Same carb I believe. Again I am not 100 percent positive.

[@timsussenbach5376]

@@doingstuffwithdylan4367 yeah i figured thanks

[@fredrutledge3628]

Need better light on that screw.

[@doingstuffwithdylan4367]

I was thinking of making a better video. Thanks!

[@yaniktherien6078]

It start leaking after the ride after i change but the oil level seem ok

[@doingstuffwithdylan4367]

Not sure with out seeing it.

[@thewanderingbox8253]

we can see how much ya beard is flapping with the screw removed...🖖🏴‍☠️⛵

[@doingstuffwithdylan4367]

Lol

[@overseerofyahweh7811]

There's a reason for that restriction, warranty. After your warranty expires, you can remove it, but obviously Honda or any manufacturer won't tell you this, because people will remove it on day one and put it back after the engine fails and claim warranty.

[@doingstuffwithdylan4367]

This only exists on 80s models. Far out of warranty! Thanks for the comment!

[@omieyouknowme]

Now raise the motor an inch, make a difference again.

[@doingstuffwithdylan4367]

Done. It’s almost my most popular video thanks for watching and the comment!

[@JBOutboards]

Can I do this to my 1989 Honda 15hp?

[@doingstuffwithdylan4367]

I think you already have the maxed out version of that block design. The difference in mine and yours is you have different cam. And no screw. Maybe a completely different carburetor. But I’m pretty sure it’s the same block.

[@keysersmoze]

Your video was good except for the detail shot looking at the motor. It was all dark saturated black couldn't see dick squat.

[@doingstuffwithdylan4367]

Yep think I’m gonna make a new video this spring. Thanks for watching and the comment!

[@sambosamuels4224]

Yeehahhh hahaha

[@doingstuffwithdylan4367]

Getting it! Lol

[@fredrutledge3628]

Need better light on that screw.

[@doingstuffwithdylan4367]

Might make an updated video. Thanks for the comment and watching!

[@sheldons231]

​@doingstuffwithdylan4367 Please do, I also found it impossible to see the screw, will look at my outboard and see if I have one more or less in the same spot, and a opposing nut on the other end. Mine is a BF 9.9 that I bought in 1990, and he bought the motor in the early 80s he said.