Interesting, I‘ve been looking at a different boat with similar outboard Honda 6HP motor (the boat is like 10ft long, sleek but flat and straight back and ~1‘5000 pounds heavy). I do notice a slight change in the sound of the motor too. This before you said something but maybe one could look at the raw audio, low-pass it and, if you held that thing cranking then one could measure a difference. There are pickup probes used to measure the temperature of the bearing and ambient temperature and the frequencies emitted by bearings. These are then compared to previous recordings and there are tools out there that will give you a qualitative result of the bearings condition. Such a plug could well lead to a better combustion and therefore less soot - or the opposite. Yet to find someone who tuned their Honda 6HP, maybe that’s my niche 😎 Hope you have had a few good days, this year has been a mixed bag on the river here.
@@Skinnyriver weather has been a bit rubbish but heading into summer soon so hopefully things should improve. Just relocated to North East coat of uk bought a house near a harbour on a fishing port so hopefully plenty of opportunities to get the boat out fishing. Any videos on tips and hacks for space saving on a small boat would be useful 👍
Yeah that is a great video idea. I’ll start thinking about that. I have zero storage space so I could use some organization and vertical storage myself. Congrats on new house
Nice. I'm surprised you're getting that top end speed with a 6HP motor. I have a new 30HP 4 stroke Mercury on a 16' soft inflatable with an aluminum floor and I'm not getting any better than 20mph with two adults and a kid. Total weight of my set up, minus the occupants, the outboard, and a bit of gear is 350lbs.
Yeah I am kinda surprised too. I have hit 20 mph before before I put a floor and trolling motor in. I’ve found Flat bottoms tend to go faster than inflatables and v hulls. I also waxed the hull to make it slicker 🤣 I don’t think it really help though
@@_sneer_ It came with a three blade Mercury Black Max. I've tried switching it out with a 4 blade Mercury Spitfire, which gets me up to plane faster without much of a difference in top end speed. The outboard is still in the break-in period, meaning I've been going easy on her. Yes, I have maxed her out in spurts though @ 6000RPM. I'm also running a skeg /prop guard which apparently will rob you of top end.
I run a 12ft ab rib, fiberglass bottom with a 30hp 2 stroke yamaha. With 2 adults and close to 100 lbs of gear (fuel anchor 12v agm battery) i get 23-25 kts. Alone im doing mid 30s. I run a 9/78 x 13p propeller. Check your propellers pitch and diameter. If you need more lift in the stern consider a 4 blade otherwise it might cost you an extra 2 kts on the top end and about 500-800 rpm.
A "standard" plug in the old days for an automobile would last about 15k miles. Now the Lazer Iridiums go for 110k of course they are like 9x higher in price depending on where you get them from. They burn alot hotter but they also use a coil on plug dedicated to that spark plug and it puts out about 40k volts where as a "standard coil" would put out 20 volts. Which is why you most likely are not seeing an increase. I would be curious to see if there was an increase if you used a "performance coil" with that plug, even if they make such a thing for an outboard motor. Cool video though!
Great points!!! I didn’t know all of that. Yeah I bet you are right that the coils the limiting factor. Now need to get a flux capacitor to hookup to the coil
I knew this NGK plug would work because I’ve used the standard NGK plug before and the Iridium version just adds IDX to the end of the spark plug part number. So I was pretty sure it would work.
@@Skinnyriver should be a standard... b5Es? bpr5es, etc... as long as you dont hit pistons and threads are the same length, diameter... though recently they have been making attempts to ruin their former easy to follow numbering system... NGK that is... i have an... MR8E in some bike. its a CPR8E to all intents and purposes. other bikes have platinum or iridium plugs yet the numbering bears no relation to what the plug resembles... a BPR*E... and that being said, the "IX" series of plugs appear to only be tipped at the electrode, some of the more "esoteric" plugs are tipped on the ground strap as well. you notice this with inline fours running twin plug coils... one wears the electrode, one wears the ground strap as the current always flows one way through the pair.. i generally just swap the leads/plugs over every few thousand.
a spark is a spark, regardless what it comes from. iridium is just one of those things... serves no real purpose, except in say, certain mitsubishi V6's with the rear bank of cylinders hidden under the intake manifold, or certain 5 cylinder VWs that hide one plug under the alternator... by the time they need replacing the average car is onto its third owner... as for spark voltages... you need a certain voltage to arc over a certain gap, and as pressure increases, so does the voltage needed. but once the arc is established, it drops to only a few volts at most, as current flows across the resistance and energy stored in magnetic or electrostatic fields is released as a function of E=IR or ohms law... the higher the compression, the higher the voltage required. they had issues with early CDI units, in that the spark, whilst being hot, intense, and reliable... was also so brief and rapid that it failed to light the charge! and thats where resistors come into play, along with noise suppression. the extra impedance in the circuit once the arc is established reduces the current that can flow through the arc, and as the ignition system delivers a certain quantity of energy, voltage x amps, the arc stays "lit" for a few milliseconds longer, and that gives the charge far more opportunity to light up...
Wow awesome post, thanks for taking the time to explain. Yeah I knew going into this that really the only benefit is longevity which doesn’t matter when you only use the motor
Standard plugs are generally recommended so for entertainment only :). Check your manual before trying anything crazy!
I'll go with standard plugs... Good video...
How's snicker doodle doing?
I guess the dog is part of the family now!
lol yeah standard are probably ok for a 6hp motor 😂 if I had a $100k racing boat it might be worth it. The pup is good! Loves the boat
Interesting, I‘ve been looking at a different boat with similar outboard Honda 6HP motor (the boat is like 10ft long, sleek but flat and straight back and ~1‘5000 pounds heavy).
I do notice a slight change in the sound of the motor too.
This before you said something but maybe one could look at the raw audio, low-pass it and, if you held that thing cranking then one could measure a difference.
There are pickup probes used to measure the temperature of the bearing and ambient temperature and the frequencies emitted by bearings. These are then compared to previous recordings and there are tools out there that will give you a qualitative result of the bearings condition.
Such a plug could well lead to a better combustion and therefore less soot - or the opposite.
Yet to find someone who tuned their Honda 6HP, maybe that’s my niche 😎
Hope you have had a few good days, this year has been a mixed bag on the river here.
Yeah man those are some really good ideas! Fishing and days on the river has been hit or miss for me too this year. But still fun
maybe try a 4 way spark plug those ones that are supposed to be high performance the irridium mainly makes it last a lot longer
Interesting I do love a comparison test. Top video
Awesome thanks again for the support. Hope you are doing well and the weather is as good as it is in the states right now!!
@@Skinnyriver weather has been a bit rubbish but heading into summer soon so hopefully things should improve. Just relocated to North East coat of uk bought a house near a harbour on a fishing port so hopefully plenty of opportunities to get the boat out fishing. Any videos on tips and hacks for space saving on a small boat would be useful 👍
Yeah that is a great video idea. I’ll start thinking about that. I have zero storage space so I could use some organization and vertical storage myself. Congrats on new house
Cool test thx.
Thanks for the view, I appreciate it!
Nice. I'm surprised you're getting that top end speed with a 6HP motor. I have a new 30HP 4 stroke Mercury on a 16' soft inflatable with an aluminum floor and I'm not getting any better than 20mph with two adults and a kid. Total weight of my set up, minus the occupants, the outboard, and a bit of gear is 350lbs.
Yeah I am kinda surprised too. I have hit 20 mph before before I put a floor and trolling motor in. I’ve found Flat bottoms tend to go faster than inflatables and v hulls. I also waxed the hull to make it slicker 🤣 I don’t think it really help though
With 30HP that should do better. Are you maxing out your rpm? What propeller do you have fitted?
@@_sneer_ It came with a three blade Mercury Black Max. I've tried switching it out with a 4 blade Mercury Spitfire, which gets me up to plane faster without much of a difference in top end speed. The outboard is still in the break-in period, meaning I've been going easy on her. Yes, I have maxed her out in spurts though @ 6000RPM. I'm also running a skeg /prop guard which apparently will rob you of top end.
@@SIBXCDA you might want a prop with more pitch, seems like it is overrevving.
I run a 12ft ab rib, fiberglass bottom with a 30hp 2 stroke yamaha. With 2 adults and close to 100 lbs of gear (fuel anchor 12v agm battery) i get 23-25 kts. Alone im doing mid 30s. I run a 9/78 x 13p propeller. Check your propellers pitch and diameter. If you need more lift in the stern consider a 4 blade otherwise it might cost you an extra 2 kts on the top end and about 500-800 rpm.
You think this will fit a 3.5hp merc?
I couldn’t find it in the compatible motor list. I’ll try to keep looking if there is a compatible one
There is no substitution for cubic inches! Speed cost money, how fast do you want to go?
80
No difference !
Greetings from Greece ! !
Yeah I wasted $327 dollars on this stupid spark plug
I think you can change your carburetor and get more speed
If you want maximum performance a Brisk racing gapless plug would be better
Nice I’ll give it a shot
A "standard" plug in the old days for an automobile would last about 15k miles. Now the Lazer Iridiums go for 110k of course they are like 9x higher in price depending on where you get them from. They burn alot hotter but they also use a coil on plug dedicated to that spark plug and it puts out about 40k volts where as a "standard coil" would put out 20 volts. Which is why you most likely are not seeing an increase. I would be curious to see if there was an increase if you used a "performance coil" with that plug, even if they make such a thing for an outboard motor. Cool video though!
Great points!!! I didn’t know all of that. Yeah I bet you are right that the coils the limiting factor. Now need to get a flux capacitor to hookup to the coil
@@Skinnyriver 😂🤣😂
How did you figure out what plug would work?
I knew this NGK plug would work because I’ve used the standard NGK plug before and the Iridium version just adds IDX to the end of the spark plug part number. So I was pretty sure it would work.
@@Skinnyriver ohhh gotcha. Thanks.
@@Skinnyriver should be a standard... b5Es? bpr5es, etc... as long as you dont hit pistons and threads are the same length, diameter...
though recently they have been making attempts to ruin their former easy to follow numbering system... NGK that is... i have an... MR8E in some bike. its a CPR8E to all intents and purposes. other bikes have platinum or iridium plugs yet the numbering bears no relation to what the plug resembles... a BPR*E...
and that being said, the "IX" series of plugs appear to only be tipped at the electrode, some of the more "esoteric" plugs are tipped on the ground strap as well.
you notice this with inline fours running twin plug coils... one wears the electrode, one wears the ground strap as the current always flows one way through the pair.. i generally just swap the leads/plugs over every few thousand.
Neat!
Thanks! Not as neat as a 21” Smallie and Muskie in the same day!
@@Skinnyriver well, go fishing with me!!
a spark is a spark, regardless what it comes from.
iridium is just one of those things... serves no real purpose, except in say, certain mitsubishi V6's with the rear bank of cylinders hidden under the intake manifold, or certain 5 cylinder VWs that hide one plug under the alternator... by the time they need replacing the average car is onto its third owner...
as for spark voltages... you need a certain voltage to arc over a certain gap, and as pressure increases, so does the voltage needed. but once the arc is established, it drops to only a few volts at most, as current flows across the resistance and energy stored in magnetic or electrostatic fields is released as a function of E=IR or ohms law...
the higher the compression, the higher the voltage required.
they had issues with early CDI units, in that the spark, whilst being hot, intense, and reliable... was also so brief and rapid that it failed to light the charge!
and thats where resistors come into play, along with noise suppression. the extra impedance in the circuit once the arc is established reduces the current that can flow through the arc, and as the ignition system delivers a certain quantity of energy, voltage x amps, the arc stays "lit" for a few milliseconds longer, and that gives the charge far more opportunity to light up...
Wow awesome post, thanks for taking the time to explain. Yeah I knew going into this that really the only benefit is longevity which doesn’t matter when you only use the motor
Iridium doesn’t perform better it just lasts a lot longer
Lies!!!! lol
Your chasing your tail, if you want to go fast get a bigger motor........
I think it’s more out of curiosity
Thanks!! Yeah It was just a fun test… still there was a little hope I would gain like 5mph 🤣
Thanks!! Yeah It was just a fun test… still there was a little hope I would gain like 5mph 🤣