Another Great Video, Zenoah G43L

Mike St

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Here's another great video showing the reliability and speed of the
Zenoah G43L 2 stroke engine. Tops out at 36 with this set up

Sounds like a chain saw. I back calculated this motor is revving at top speed of about 9,200 rpm.

The Solo 154 will top out at 41mph with Staton's 1.34 roller. It has a max rpm of 10,800 plus or minus 300 rpm.
This user is not satisfied with the Solo.
 

Sidewinder Jerry

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To do 36 mph on 26" tires using the 1.34" roller the engine would be turning 9031 rpm. Very doable for a lite weight flat lander with this set up.
 

Mike St

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My calculations show 9200 rpm for 36.5 mph.
9200 x 6.78 x 60 x divided by 5280 = 36.5 mph
26/1.34
 

Sidewinder Jerry

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(RPM x Wheel Diameter x π)÷(1056 × Total Reduction) = MPH

(9,031×26×π)÷(1,056×(26÷1.34))=36.0019973117

(9,200×26×π)÷(1,056×(26÷1.34))=36.6757142362
 

2speedboi

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Zenoah is quality, hard to beat.

My 25cc hits 15mph and up to 30mph in about 10s. The smaller zenoah series will hit 13,000rpms and some at almost 16-18 with heavy mods.

Zenoah is unsurpassed for 2 stroke In my opinion.
 

Mike St

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Zenoah has been manufacturing high rpm engines for the RC
hobby market where engines get up to 14,000 rpm. They are
far beyond Chinese 2 strokes that seem to require the user
to be a 2 stroke mechanic. Zenoah does all the engineering
not the user.
 

Sidewinder Jerry

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Japanese engines tend to be of a much higher quality material, performance and durability than Chinese engines. They also tend to cost a lot more as well. Sadly expense can be the difference between many riders riding and not riding. Which is what this forum is all about teaching riders how to keep their engines running.
 

2speedboi

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Japanese engines tend to be of a much higher quality material, performance and durability than Chinese engines. They also tend to cost a lot more as well. Sadly expense can be the difference between many riders riding and not riding. Which is what this forum is all about teaching riders how to keep their engines running.
Well to be honest,

Having used both Zenoah and Zenoah china clones(i.e. rovan, etc) the 2 biggest differences aside from an overall better zenoah castings is the 2nd crankshaft bearings for a total of 3 on g240 models and up( not used in clones) and the cylinder walls are actually honed and cleaned very well. In fact the two clones I have that still run are pretty scored up after a 500mile mark and the second at less than 100. My partner blew the top end in less than 100. All using lucas synthetic mix. While my zenoah which has passed 1500 miles is spotless on the walls and still has excellent compression. She runs a 23cc zenoah now from the mid 90s and it runs like tank.

For the difference of around only a $100 you get added crankshaft bearing support, a high flow muffler, an actual walboro carburetor, and the best quality 2 stroke on the market for price in my opinion.

Having had multiple china engines including a mid frame kit, I can say that spending the extra 100-120 on a motor that will last a lot longer is a no brainer.

It honestly kills me to see so many china engines being used, and supporting that market with even one purchase is reflected 1000x again from others that follow suit.
And the posts of "help, I just couldn't wait a little longer and buy a quality engine and now I am stuck with it, help help" just keep rolling in like clock work.

I would love to have my hands on a middle price American made engine, but I really still don't know if we can beat the Japanese quality.

Buy a honda, save and wait for a Subaru, spend the little extra to buy a Zenoaoh. I will guarantee a easier MB experience and less failure resulting in more fun.

Note, this is talking specifically about friction drive on my end, and I know that there IS access to quality mid frame kits, but my argument is in the realm of friction drive and the broader issue of people wasting money to save $20-$100 by purchasing just plain junk.

I am not made of money by any means, but had intended to find the reliable solution for MB transportation. My money that I do have is worth INVESTING in quality.
 

Sidewinder Jerry

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Well to be honest,

Having used both Zenoah and Zenoah china clones(i.e. rovan, etc) the 2 biggest differences aside from an overall better zenoah castings is the 2nd crankshaft bearings for a total of 3 on g240 models and up( not used in clones) and the cylinder walls are actually honed and cleaned very well. In fact the two clones I have that still run are pretty scored up after a 500mile mark and the second at less than 100. My partner blew the top end in less than 100. All using lucas synthetic mix. While my zenoah which has passed 1500 miles is spotless on the walls and still has excellent compression. She runs a 23cc zenoah now from the mid 90s and it runs like tank.

For the difference of around only a $100 you get added crankshaft bearing support, a high flow muffler, an actual walboro carburetor, and the best quality 2 stroke on the market for price in my opinion.

Having had multiple china engines including a mid frame kit, I can say that spending the extra 100-120 on a motor that will last a lot longer is a no brainer.

It honestly kills me to see so many china engines being used, and supporting that market with even one purchase is reflected 1000x again from others that follow suit.
And the posts of "help, I just couldn't wait a little longer and buy a quality engine and now I am stuck with it, help help" just keep rolling in like clock work.

I would love to have my hands on a middle price American made engine, but I really still don't know if we can beat the Japanese quality.

Buy a honda, save and wait for a Subaru, spend the little extra to buy a Zenoaoh. I will guarantee a easier MB experience and less failure resulting in more fun.

Note, this is talking specifically about friction drive on my end, and I know that there IS access to quality mid frame kits, but my argument is in the realm of friction drive and the broader issue of people wasting money to save $20-$100 by purchasing just plain junk.

I am not made of money by any means, but had intended to find the reliable solution for MB transportation. My money that I do have is worth INVESTING in quality.
Though I'm not a fan of the non-adjustable Wal-Bro carburetor, my 4 stroke RS35 is 12 years old and has 4448 hours of use on it. I now carry a spare pre-adjusted adjustable carburetor with me. All I've ever replaced is the spark plug and fuel filter. I change my oil and check the valve latch clearance every 25 hours and clean the air filter every 10 hours. I contribute the longevity to the engine's quality, regular scheduled maintenance and the shift kit/tachometer allowing it to use the most efficient drive ratio.

Yes in the long run a quality engine is a cheaper investment. However, for many it's easier to come up with $160 for a kit; than $400+ for just the engine alone. It's sort of like buying a washer & dryer vs going to a rent to own place for a washer & dryer. To buy the W/D requires a large sum of money to take it home. The rent to own only requires a small amount of money to take it home but you end up paying 4 times the amount of its retail value in the end.
 
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