Hangkai 6hp Outboard Maintenance

[That old Mercury]

-No salt, just lakes mostly and used a handful of times a year. Happy to hear it starts easily!!
-WOW! Where did you find it for $325 (shipped)! I would have considered new but found they were goin for ~$500 (shipped).
-You called out the Hangkai is a Yamaha clone. I doubt they took the time to engineer and developed their own fuel line connection. As such, you can find the Yamaha equivalent external tank and compare the fittings. Once confirmed, you can then find fuel line connector online for Yamaha and fit that to the Hangkai (I don't plan to use external tank but may keep spare 1 or 2 gallon canister. Not familiar with how fast this motor goes through fuel.

https://www.aliexpress.us/item/2251832567765160.html?gatewayAdapt=glo2usa4itemAdapt

This may be helpful for future refence or just search "Hangkia 2 stoke + part" and you'll find it.
HANGKAI Outboards Original Parts for Hangkai 4-stroke 6.5 HP Outboard Parts Boat Engine Propeller Spark Plug Crankshaft Gear

By caliper measurements a tohatsu
Auxillary gas line connector measured the closest.
I dont know what clone it is. I dont remember saying that it was a Yamaha, it dont really matter everything built overseas !
Wot gas usage i dont know , but for what i do trolling and motoring back upwind for another drift it seems to burn very little gas.
Maybe fill it up every couple of trips
Mine did not come with the prop cage, yours looks home made and its sturdy looking , that is a plus.
I always use fuel stabilizer and a decarbonizer ,seafoam in my main motor tank every 3 tanks full for my main motor . And use a simple 500 cc transfere syringe to get the gas out my main tank for it.
Its simple and not messy.
Bought mine on prime day awhile back. The price has soared since my purchase. I would not buy one at todays price ! I would go with a used outboard .
I will check out that link and save it if needed.
Thanks

 

[msg4bob]

By caliper measurements a tohatsu
Auxillary gas line connector measured the closest.
I dont know what clone it is. I dont remember saying that it was a Yamaha, it dont really matter everything built overseas !
Wot gas usage i dont know , but for what i do trolling and motoring back upwind for another drift it seems to burn very little gas.
Maybe fill it up every couple of trips
Mine did not come with the prop cage, yours looks home made and its sturdy looking , that is a plus.
I always use fuel stabilizer and a decarbonizer ,seafoam in my main motor tank every 3 tanks full for my main motor . And use a simple 500 cc transfere syringe to get the gas out my main tank for it.
Its simple and not messy.
Bought mine on prime day awhile back. The price has soared since my purchase. I would not buy one at todays price ! I would go with a used outboard .
I will check out that link and save it if needed.
Thanks

My mistake, matt167 commented it was a Yamaha knockoff. I've came across other internet posts in past searches with comments that it is a Yamaha knockoff but never seen anyone ref material to confirm. Perhaps they are referring to a different motor or series but I snooped a bit and can confirm the Hangkai 6HP 2 stroke IS indeed a Nissan 5 HP knockoff (I believe shared with Tohatsu, same bore, stroke, displacement @102cc!). This further confirm your caliper measurement on the fuel line connection matching Tohatsu.

-Interesting Nissan specs a BPR-7HS10 (+Resistor) plug ($4.34 AZ). I need to take out my plug to confirm if the threading is E or B but I'm learning towards NGK BP7HS-10 ($4.49 AZ). Searching NGK E7TC give me results for TORCH E7TC Spark Plug Replace for NGK BP7HS... I rather get the NGK BP7HS-10 (-10 = pre-gap to 1mm) instead of the Torch.

NGK.com: NGK Spark Plug Numbering Systems

NGK.com specializes in hard to find NGK products.

www.ngk.com

Internal layout and specs are IDENTICAL (*almost). I need to look into the Nissan subforum .

 

[That old Mercury]

Hi
If i go by its a tohatsu, then its really a Mercury by this link.
Its at the end of the story at the bottom.

Mercury Marine - Wikipedia

en.m.wikipedia.org

It really dont matter, you found the parts . Anything made has lemmons and all we can do is try to maintain them properly and try to keep water and old gas out of the carbs.
Mine has paid for itself twice already by not having to call for two tows.
For me if it only last a full year it will have been well worth what i paid for it.
The are pretty quiet to me but i am half death also lol

 

[msg4bob]

Was thinking of adding a rectifier/regulator to get 12v power but would likely drop it to 5v to power USB devices. Why not try just use a wall socket USB power adapter?! It is essentially a rectifier/regulator BUT the outboard AC voltage likely spikes so not sure if the wall socker can handle it. OTOH, this is a low power outboard and I got some spare adapter lying around... might give it a try and see what DC voltage I can get.

Regulator Rectifier for 5-6.5HP Engines

The Regulator Rectifier for 5-6.5HP Engines is a crucial component for regulating your engine's electrical system. This top-quality regulator rectifier is designed to fit engines with 5-6.5 horsepower perfectly, ensuring a smooth and safe operation. It features a durable construction, built to...

www.gopowersports.com

 

[msg4bob]

How do folks with built-in fuel tanks check your fuel level? I am strongly leaning towards adding a fuel gauge, which means I will need the 12v rectifier after all.

There's also adding a tachometer but I'm not sure why an outboard needs that... It's not like you can overrev it but I guess it is nice that it counts running hours for 100hr maintenance. If only I can find one that uses an analog gauge. The single wire kit that measures spark plug firing rate is battery operated. Now, I'm just adding unnecessary crap.

 

[matt167]

You certainly can over rev an outboard. You can have the wrong prop and spin it way out of spec. A 110v rectefier for USB may work. Check fuel in tank by in screwing cap

 

[ct1762@gmail.com]

Was thinking of adding a rectifier/regulator to get 12v power but would likely drop it to 5v to power USB devices. Why not try just use a wall socket USB power adapter?! It is essentially a rectifier/regulator BUT the outboard AC voltage likely spikes so not sure if the wall socker can handle it. OTOH, this is a low power outboard and I got some spare adapter lying around... might give it a try and see what DC voltage I can get.

Regulator Rectifier for 5-6.5HP Engines

The Regulator Rectifier for 5-6.5HP Engines is a crucial component for regulating your engine's electrical system. This top-quality regulator rectifier is designed to fit engines with 5-6.5 horsepower perfectly, ensuring a smooth and safe operation. It features a durable construction, built to...

www.gopowersports.com

sorry but how would you hook up the rectifier without power coils in the stator? unless they bizarrely come with them and the leads are just not hooked up, the stator will just consist of a charge coil for the cdi, and a pulsare/sensor/trigger coil. that's it. no battery charging capability on one unless again it was ordered like that, indicated through the motor model #.

 

[That old Mercury]

How do folks with built-in fuel tanks check your fuel level? I am strongly leaning towards adding a fuel gauge, which means I will need the 12v rectifier after all.

There's also adding a tachometer but I'm not sure why an outboard needs that... It's not like you can overrev it but I guess it is nice that it counts running hours for 100hr maintenance. If only I can find one that uses an analog gauge. The single wire kit that measures spark plug firing rate is battery operated. Now, I'm just adding unnecessary crap.

Can you power what you need with a battery jump box?
You can get them with a lot of different out lets.
I clear coated mine finally , and its so easier to clean now than it was with just the black paint on it !
I lake and river fish and sometimes depending on rain the water scum would stick to it , and it was hard to wash it off.
I took the spark plug out today and it is a BP 7H S , No brand on it though.

 

[matt167]

Hangkai and most Chinese stuff uses Torch spark plugs. They use NGK part numbers

 

[That old Mercury]

Hangkai and most Chinese stuff uses Torch spark plugs. They use NGK part numbers

Hi matt167:
You are probably Correct on the spark plugs, I trust you.
Just giving an update.
I told msgforbob way back in the post when he was asking about spark plugs my hangkai 6 hp 2 stroke manual calls for an Ngk E7TC, but i see that it did not come with that! I dont know what brand it is.
Just giving an update.

 

[msg4bob]

sorry but how would you hook up the rectifier without power coils in the stator? unless they bizarrely come with them and the leads are just not hooked up, the stator will just consist of a charge coil for the cdi, and a pulsare/sensor/trigger coil. that's it. no battery charging capability on one unless again it was ordered like that, indicated through the motor model #.

To clarify, I'm not looking for the outboard to generate enough current to charge a battery; only looking to make use of the electricity since it is running anyway to power small devices (amperage might be too low for any practical application TBH). For battery charging, you'd need to add dedicated power coils (assuming the Tohatsu/Nissian/Hangkai plate has space and mount to add one). This lead me down to fantasy thoughts of a frankstein build with adding flywheel, alternator, electric ignition . My hobby is on the automotive side -I like frankenmotors.

This 6hp Hangkai 2-stroke does not have power leads (I 'think' their 6.5hp 4-stroke does). I would need to tap into the stator, coil, or CDI to get AC power. Then I would need to add the regulator/rectifier to get a clean/stable 12V DC current (again unsure amperage rating will be practical) or add in the USB wall plug for 5v low amp; free energy, why not? Still need to verify but I wonder if it could be as simple as swapping the existing coil to one with a power lead might work. **disclaimer, this will take current away from the spark plug**

 

[matt167]

You would need some kind of lighting coil for it to work. What you need probably exists. It’s going to be a charging stator. You won’t need a regulator for what you want as the 110V plug should be able to take care of the voltage's. But if you add a regulator, you could keep a small battery charged. You would be 90% there.

 

[That old Mercury]

To clarify, I'm not looking for the outboard to generate enough current to charge a battery; only looking to make use of the electricity since it is running anyway to power small devices (amperage might be too low for any practical application TBH). For battery charging, you'd need to add dedicated power coils (assuming the Tohatsu/Nissian/Hangkai plate has space and mount to add one). This lead me down to fantasy thoughts of a frankstein build with adding flywheel, alternator, electric ignition . My hobby is on the automotive side -I like frankenmotors.

This 6hp Hangkai 2-stroke does not have power leads (I 'think' their 6.5hp 4-stroke does). I would need to tap into the stator, coil, or CDI to get AC power. Then I would need to add the regulator/rectifier to get a clean/stable 12V DC current (again unsure amperage rating will be practical) or add in the USB wall plug for 5v low amp; free energy, why not? Still need to verify but I wonder if it could be as simple as swapping the existing coil to one with a power lead might work. **disclaimer, this will take current away from the spark plug**

If you want to go all out just add an automotive altenator or a pm motor .Yes afrankstein ! I like that
I have seen an automotive altenator installed on larger motors with a hole cut through the cowling on top and the pull rope groove on the motor machined out large enough for a standard v groove belt.
The hangkai just has the cover on top like a lawn mower.
I do think a small pm motor would fit under the cowling. Would need a second groove for a belt machined into the flywheel.
Or maybe a tow behind the boat power generator that would run submerged.
I might be able to figure that out for you.
Matter of fact i might look at doing that to help charge my batteries
Instead of going the solar route!

 

[msg4bob]

If you want to go all out just add an automotive altenator or a pm motor .Yes afrankstein ! I like that
I have seen an automotive altenator installed on larger motors with a hole cut through the cowling on top and the pull rope groove on the motor machined out large enough for a standard v groove belt.
The hangkai just has the cover on top like a lawn mower.
I do think a small pm motor would fit under the cowling. Would need a second groove for a belt machined into the flywheel.
Or maybe a tow behind the boat power generator that would run submerged.
I might be able to figure that out for you.
Matter of fact i might look at doing that to help charge my batteries
Instead of going the solar route!

Sounds like a fun project!

I think this might be easier than what im thinking. I am unable to find video/image of anyone pulling the flywheel on the Hangkai to see/confirm what the stator plate looks like BUT based on images of used Nissan/Tohatsu equivalent (eBay), the plate seems to have mounting provision to add the power coil/exciter!!! This could be as easy as pulling the cover, and adding the coil to get AC power. If anyone has an image, please let me know!

 

[ct1762@gmail.com]

Sounds like a fun project!

I think this might be easier than what im thinking. I am unable to find video/image of anyone pulling the flywheel on the Hangkai to see/confirm what the stator plate looks like BUT based on images of used Nissan/Tohatsu equivalent (eBay), the plate seems to have mounting provision to add the power coil/exciter!!! This could be as easy as pulling the cover, and adding the coil to get AC power. If anyone has an image, please let me know!

yes they sell lightning (in the USA we call them power coils. powers the charging circuit for the battery) coils for those motors. should be quite easy to get, but i was just saying as-is it will not charge a battery. the CDI needs all the voltage (around 200v at idle possibly 400v) from its charge coil for it to work. tapping into it sounds like it would wreak havoc! or melt something down i dunno

 

[That old Mercury]

If you want to go all out just add an automotive altenator or a pm motor .Yes afrankstein ! I like that
I have seen an automotive altenator installed on larger motors with a hole cut through the cowling on top and the pull rope groove on the motor machined out large enough for a standard v groove belt.
The hangkai just has the cover on top like a lawn mower.
I do think a small pm motor would fit under the cowling. Would need a second groove for a belt machined into the flywheel.
Or maybe a tow behind the boat power generator that would run submerged.
I might be able to figure that out for you.
Matter of fact i might look at doing that to help charge my batteries
Instead of going the solar route!

msg4bob
Did you find a manual for removing flywheel?
I always start both my motors at dock before i do anything to make sure they both crank, Guess what ?
My little hangkai 6 hp 2 stroke did not crank on the first pull or the 50th pull . It No cranky! I am cranky though.
Plugged out plug had gas on it.
Stuck plug wire on spark plug pulled rope and it was sparking.
Pulled rope a few more times to clear out gas put in another plug No crank, sprayed it with lubricated starting fluid not even a sneeze.
My guess something came loose and firing at the wrong time.
So i will check first to see it float stuck wide open first, then it will be flywheel removal time!!
I dont think thier much holding it on.
The shifter Forward / Reverse goes under starter rope , so that tells me the motor crankshaft it hollow , if this is true then it probably does not have a keyway.
It may be splines but i suspect just a taper or only a nut holding it on.
If i have to pull it will take pictures for both of us.
I will know something before Monday

 

[msg4bob]

msg4bob
Did you find a manual for removing flywheel?
I always start both my motors at dock before i do anything to make sure they both crank, Guess what ?
My little hangkai 6 hp 2 stroke did not crank on the first pull or the 50th pull . It No cranky! I am cranky though.
Plugged out plug had gas on it.
Stuck plug wire on spark plug pulled rope and it was sparking.
Pulled rope a few more times to clear out gas put in another plug No crank, sprayed it with lubricated starting fluid not even a sneeze.
My guess something came loose and firing at the wrong time.
So i will check first to see it float stuck wide open first, then it will be flywheel removal time!!
I dont think thier much holding it on.
The shifter Forward / Reverse goes under starter rope , so that tells me the motor crankshaft it hollow , if this is true then it probably does not have a keyway.
It may be splines but i suspect just a taper or only a nut holding it on.
If i have to pull it will take pictures for both of us.
I will know something before Monday

Sounds like a flooded engine. Did you run the proper sequence to drain the carb? I'd let the gas evap before tearing things apart unnecessarily - unless you are looking for an excuse to tear into it!

Didn't find a manual but found a better detailed tear down video of a Tohatsu 8hp (same motor); appears to be just a nut. Cautiously optimistic it is the same stator plate with an an empty bank @5:43, just waiting for a power coil.

 

[That old Mercury]

Sounds like a flooded engine. Did you run the proper sequence to drain the carb? I'd let the gas evap before tearing things apart unnecessarily - unless you are looking for an excuse to tear into it!

Didn't find a manual but found a better detailed tear down video of a Tohatsu 8hp (same motor); appears to be just a nut. Cautiously optimistic it is the same stator plate with an an empty bank @5:43, just waiting for a power coil.

On the flywheel removal i think it is just a nut . It could be like these new automotive harmonic balancers wheres thier no key.
Checking with piston at tdc the line in the flywheel with the notch or dip in flywheel aligns with the trigger sensor , dont know why flywheel has marks on it after tdc?
On mine i turned off fuel , drained carb , removed plug , pulled rope around 5 times and let it sit from an hour , changed plug and it still wouldnt crank.
With it at home built a stand mounted the motor. Pulled rope just for fun and it cranked the first pull! LOL.
Still took carb apart to see if its possible for float needle to stick if you run the fuel out of it and it is bouncing on trailer hauling boat No drop tang on float, so it can stick , i done it.
Oh on sparkplug it runs even better using a champion q77jc4.
The plug is made for slow speed trolling so its harder to fowl.
I use it on my Johnson 90 and it will idle forever with no problems.
Cant wait to hear how ur conversion goes!
Good luck

 

[That old Mercury]

On the flywheel removal i think it is just a nut . It could be like these new automotive harmonic balancers wheres thier no key.
Checking with piston at tdc the line in the flywheel with the notch or dip in flywheel aligns with the trigger sensor , dont know why flywheel has marks on it after tdc?
On mine i turned off fuel , drained carb , removed plug , pulled rope around 5 times and let it sit from an hour , changed plug and it still wouldnt crank.
With it at home built a stand mounted the motor. Pulled rope just for fun and it cranked the first pull! LOL.
Still took carb apart to see if its possible for float needle to stick if you run the fuel out of it and it is bouncing on trailer hauling boat No drop tang on float, so it can stick , i done it.
Oh on sparkplug it runs even better using a champion q77jc4.
The plug is made for slow speed trolling so its harder to fowl.
I use it on my Johnson 90 and it will idle forever with no problems.
Cant wait to hear how ur conversion goes!
Good luck

Watched the video
Was hoping to see how the shift rod going to the pull rope cover was shifting the gear F/R .
Is it actuating an electric switch?
So is it electric shift ?
Cant wait to hear!
If everything matches Mercury , Tahatsu then i am going to get me some Mercury stickers and put on it instead of hangkai!
Thanks