Chinese Hangkai 2 hp outboard DO NOT BUY!!!!!!!

steve66

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Hi, i thought i would share my experience with anyone who may be considering purchasing one of these outboards. I recently bought one of these not to use i may add but literally just for the clutch unit (which actually is very good).
Basically my background is i specialise in small up to 4 hp outboard motors mostly 4 stroke Hondas now but in the past most 2 strokes 2 hp. I heard a lot of bad press regarding these but having owned and worked on some yamaha cloned 2.5 four stroke engines which actually are pretty good i thought i would have a closer look at one.
First impressions were pretty good, good sturdy engine cowl, nice stainless fasteners sturdy recoil starter. From then on things were not so good. The starter cord had broken, with a normal outboard this literally is a 2 minute job, this is definately no a 2 minute job. You have to remove the spring and strip the recoil down top access the cord. I decided against this. I put some 30/1 !!!!!! fuel mix in, spun it up with a drill and nothing.. Right check spark...... How do i get to the plug..... Remove the cowl which is held on with 7 nuts and bolts (if you fowl a plug up at sea you will never be able to do this). Eventually removed the plug cleaned it spun it again and it started. If you have never seen one of these run , imagine a petrol strimmer and you wont be far wrong. I noticed that as it has a water pump and a centrifugal clutch you really have to give it some welly to engage the prop. The water pump cools the leg but one major design flaw is that when the prop isnt turning, the pump isnt pumping so 3/4 of the way through the rev range there is no water flow. At least you will never have to replace the impeller!!.
I decided to strip the rest of the engine to access the clutch unit. To my surprise the exhaust pipe was a piece of 15mm copper tube. I removed this and being piston port i could have a look at the piston, which was completely knackered due to a broken piece of internal casting. Judging from the size of the bore and stroke this is never a 2hp id say about 1 - 1 1/2hp maximum. So far my thoughts of salvaging the clutch unit and selling the residue parts were not looking good.
Fortunately the ckutch unit and bearing carrier were good, machined out of a solid block of aluminium . Great relief. I measured it up to a project im working on and with the holes slightly enlarged will fit perfectly.With the clutch i was hoping to utilise the driveshaft but when remove it was bent!!.
Sorry if i have gone on too long but i thought i would share this info. The engine itself was virtually brand new with less than 10 hours on it.
If anyone is considering one of these for a tender or for the kids to potter around on, please think again. These are not fit for purpose.
If anyone is interested the clutch is being used for a honda derived 2.4hp 4 stroke outboard .... http://www.youtube.com/watch?v=IreONNyv7Oo
 
I used a Honda 2.3 the other day and hated the combination of a centrifugal clutch and twistgrip.My own Mercury2.5 is a lot easier to operate with a lever throttle.I was trying to get alongside my boat with the Honda against a 3 knot tide and it was a nightmare.With my Mercury I just set the throttle and approach slowly then kill the engine.The Honda requires careful twistgripping and steering at the same time while if the revs are allowed to drop the clutch disengages and you have to start it all over again.And again.Some improvements are just stupid.
 
I used a Honda 2.3 the other day and hated the combination of a centrifugal clutch and twistgrip.My own Mercury2.5 is a lot easier to operate with a lever throttle.I was trying to get alongside my boat with the Honda against a 3 knot tide and it was a nightmare.With my Mercury I just set the throttle and approach slowly then kill the engine.The Honda requires careful twistgripping and steering at the same time while if the revs are allowed to drop the clutch disengages and you have to start it all over again.And again.Some improvements are just stupid.

I agree with your point about a centrifugal clutch. Im building 2 types of outboards, one with a clutch and 1 without. The clutch im using in my prototype is different to an original Honda. It has a 3 shoe set up as opposed to Hondas 2.
Im going to be using mine for inshore lure fishing so i will need a direct drive to enable me to troll lures at slow speeds.
I prefer to use a twist grip set up on the tiller as in my opinion is a more comfortable single handed operation.
 
Steve
Can you post a picture of your outboard? I think it is the same as one I have, which looks nice but is a disaster of a design. It is brand new, I bought it off a guy who bought it on the internet, but could not get it started. I aim to donate it to the Sydney Science museum, as an example of poor engineering, and a terrible waste of the planet's resources.
 
I agree with your point about a centrifugal clutch. Im building 2 types of outboards, one with a clutch and 1 without. The clutch im using in my prototype is different to an original Honda. It has a 3 shoe set up as opposed to Hondas 2.
Im going to be using mine for inshore lure fishing so i will need a direct drive to enable me to troll lures at slow speeds.
I prefer to use a twist grip set up on the tiller as in my opinion is a more comfortable single handed operation.
I'm sure that with practice the twistgrip throttle can be mastered but the lever throttle works so well,especially in such a small engine,that I don't see the point .
 
I'm sure that with practice the twistgrip throttle can be mastered but the lever throttle works so well,especially in such a small engine,that I don't see the point .

With the honda 2 and 2.3 you can adjust the tension and lock the throttle on the twist grip which helps massively
 
Thanks- thats the one. Reckon they made lawnmowers or similar, and thought they would have a go at making outboards. Just look at that stand in the pic! Not a clue!
 
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Great thread, thanks Steve.


Smug: Ditched the Honda after 5 years of heavy,noisy and vibration. Back to Mercury 3.3 light, quiet and a flyer.

Also sold Honda for 275 quid and bought superb nick Merc for 175.
 
Hi Steve, I bought the Hangkai 3.5HP and then I saw your post.

The motor starts without much problem, only thing is that there is a high pitch whirring sound after I throttle and the prop is engaged. See the following two video :
1. http://youtu.be/1Rwom_zb6vU
2. http://youtu.be/FFPBDGsCLKk

I noticed that the sound comes from the area in the following picture.
Sound.jpg

There is a golden nut with a ball bearing near the flywheel / shaft. and it seem to me that it is for some grease injection. Any advice ? I'm trying to get rid that noisy whirring sound. I'm a newbie at outboard, and I appreciate if there's someone out there who can advice me on this.
 
Great little engines the best small 2 stroke in my opinion
I've seen some good reviews of them. I'm thinking of getting one of the Yadao ones for my dinghy. Virtually the same motor apparently. I think what may have happened with these almost new ones is they've been run without oil. I've seen people on YouTube doing that. One guy read the instructions while he was running it and realised what he was doing. They ship without any oil you have to add it before running. It's probably a common mistake that results in half knackered nearly new second hand ones.
 
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