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Old 06-17-2012, 10:55 PM
j3000 j3000 is offline
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Location: Michigan
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Default Stressed out

I am stressing out. I have been reading post here and at other forums about bike engines and how often they break down how much trouble people are having with them. I have very limited mechanical skills. I am 38 years old and 2 years ago I figured out where my oil and transmission fluid goes. I am worried about break downs etc. I want to go with a 2 stroke engine because of the price. and I read the beginners guide here on the forum. Are these reliable or am I going to be in the garage more times then out.

thank you for your time. I can see me doing this
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Old 06-17-2012, 11:41 PM
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NunyaBidness NunyaBidness is offline
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Default Re: Stressed out

Just going by your info, I would suggest a 4-stroke install. It would give a beginner a more reliable motor bike than the 2-stroke. The 2-strokes can be made reliable, to a certain extent. But it does take a little mechanical aptitude and a LOT of reading. If you just want to install a motor and ride... go with a 4-stroke install. Just my thoughts on it.
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." - Thomas Jefferson
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Old 06-18-2012, 12:36 AM
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Allen_Wrench Allen_Wrench is offline
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Default Re: Stressed out

NB's advice is sound. Although I have what I consider to be a monumentally reliable 2-stroker, I don't think I would start somebody cold with one. I have a simple lawnmower with a small 4-stroke Briggs on it. This is all I do: I put oil where the oil goes (be certain of amount), I put gas where the gas goes, I press the primer bulb all the way in exactly four times, I pull only once on the rope, and it fires up. Briggs are about as close to "worry-free" as some engines can get. Hondas are pretty nice too.

"There is nothing wrong with wanting a motorbike that is an extension of your personal taste and fashion sense; if you must ride somewhere, I say do it with style!"
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Old 06-18-2012, 01:19 AM
j3000 j3000 is offline
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Default Re: Stressed out

The problem I have is cost with the 4 stroke If I tell my wife I need another $200 I think she will shoot me and she can shoot I taught her.
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Old 06-18-2012, 01:54 AM
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BarelyAWake BarelyAWake is offline
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Default Re: Stressed out

With "very limited mechanical skills" there's really no budget "plug n'play" solution - it's not so much 2 vs 4 stroke but just plain economics... if you buy the least expensive engines, you're faced with either unreliability (stock/unmodified) or some serious fabrication demands... sometimes both lol

The cheap in-frame two stroke kits are w/o a doubt the least expensive way to motorize a bicycle and they can be made reliable - but there's a rather steep learning curve if you're not familiar with even such a basic engine design. They are very simple motors however and a great learning tool... the catch is due to the lack of quality control, particularly when combined with that "learning curve" you may find they're not as economical as they initially seem... fortunately, parts & even just the engine itself are very inexpensive to replace.

The least expensive four stroke engines seem very attractive due to their low initial cost and reputation for reliability - the catch with those however is the motor is somewhat more complex and they're not kits. So you'll need to purchase or fabricate everything else needed to motorize a bicycle & that can add up surprisingly fast... and if you do find you need to repair or even tune the motor, well... now you're dealing with valves and all sorts of fun stuff lol

Thing is - despite the popularity of the above options, there are other choices. If you're not interested in maximum preformance, fabrication and/or repair and only want inexpensive & reliable transportation - don't fall for the "false economy" of the least expensive engines as they'll end up costing you more than you'd think, even if just time. By spending a little extra up front you can side step all of this - check out any of the "rack mount" kits, both 2 and 4 stroke as generally speaking they've better quality engines than the in-frame kits, but don't require the fabrication of the engine-only 4 stroke options...

They are pretty much the only true "plug n'play/one size fits all" kits available ('cept electrics ofc, but those get pricey fast) & while they have some disadvantages (weight & balance, cargo room), for the money and your needs, they might be the most straightforward solution.

Jus' a thought

Last edited by BarelyAWake; 06-18-2012 at 01:56 AM.
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Old 06-18-2012, 02:44 AM
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Mr. Minecraft Mr. Minecraft is offline
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Default Re: Stressed out

O.o I learned a lot as well from this. So for example, is the super Titan the better 4 stroke, and the hua sheng thingy the cheaper one?
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Old 06-18-2012, 08:14 AM
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donphantasmo donphantasmo is offline
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Default Re: Stressed out

In my opinion, I wouldn't even get a MB. I LOVE doing this stuff, I love to tinker with the motors, and adjust everything from chain tension to throttle cables. But, if you don't have any mechanical knowledge, and if you don't even know where to put your oil or tranny fluid in a car, I would stay away from MBs.

Get a scooter. They're almost as much fun as a motorized bike, but the differance is they're already done. you can get one that shifts (Vespa PX series or Genuine Stella) or you can get a twist and go (Almost like an automatic). If you're not mechanically compitant (Which I give you props for admitting) don't build your own motorized bike. You will honestly end up hurting yourself...

Best of luck anyways..
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Old 06-18-2012, 09:30 AM
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azbill azbill is offline
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Default Re: Stressed out

mr minecraft,,,the titans are re-badged HuaShengs
I put 17,000 miles on my HS,
so, while they are inexpensive,,,they seem pretty reliable

Intelligence is learning from your own mistakes,
Wisdom is learning from the mistakes of others

EZ Motorbike Dealer - Fountain Hills, AZ
EZ Motorbike of Fountain Hills
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Old 06-18-2012, 09:36 AM
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MotorBicycleRacing MotorBicycleRacing is offline
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Default Re: Stressed out

Originally Posted by Mr. Minecraft View Post
O.o I learned a lot as well from this. So for example, is the super Titan the better 4 stroke, and the hua sheng thingy the cheaper one?
No, they are basically the same engine made in the same factory.
A Titan is just a relabeled Huasheng motor.

They are both copies of the Honda GXH 50cc with the difference
of the output shaft.

The super Titans claim of making 3 hp has never been proven and
all the evidence i have seen leads me to suspect that there is only
difference between a super titan, titan and huasheng motor is that
the titans have an oiling groove added to the connecting rod.

Also the Huasheng 50cc 4 stroke with the 5/8" shaft has 2 good
gearboxes available for it where as the Titan 50 cc 4 stroke has
the clutch built into the side of the motor which limits it to only
accepting cheap Chinese made gearboxes that came off pocket

Those cheap Chinese made gearboxes are so bad that unscrupulous
sellers will not even show what gearbox comes with the kit they are
selling in their ads.

Just to complicate matters there is a Huasheng motor with the same
clutch set up as a titan but no one seems to sell them anymore.

All the 50 cc 4 strokes above are good reliable, long lasting motors.

The big problem with buying a 50 cc 4 stroke kit is what gearbox the
motor is fitted with.

The only good 4 stroke gearboxes available are the EZ Motorbike
Q matic and the Grubee 4 G which has several problems that need
to be fixed to make them reliable.
If you want to buy a 50cc 4 stroke kit some more research will
save you money, time and aggravation.
There is a lot of good info in the 4 stroke engine forum.........
Good luck.
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Old 06-18-2012, 10:03 AM
Steve1990 Steve1990 is offline
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Join Date: Jun 2012
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Default Re: Stressed out

I can't honestly think of a better engine to learn about engines on than one of the chinese 2-strokes. THey are just so simple, and you should really tear them down, at least partially, if you want them to be reliable. Another benifit of them is that you can still ride the a bike, its just a bit heavier. I've pedaled mine home a few times, its not bad.

A forum like this is a great place with all the info you could ever need about these little engines. Although I'm a recent member, I built my bike in 2009 and have been lurking here off and on since then.
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