Yamaha jog vs minarelli jog

[180°off]

Is there any diffrence between the 2? I have the jog on my coo but am able to get a Yamaha jog. Is it better quality? Or. Same s@!t diffrent Company?

[90GTVert]

Minarelli/Jog engines that we typically refer to are the same basic style and the terms get used interchangeably. There are Minarelli engines that are nothing like ours, since Minarelli is it's own company and made or designed many engines. Actual Yamaha Minarelli engines are from Yamaha scooters, others come from Chinese stuff, Malagutti, Aprilia, etc... There are differences between them. If you have a Chinese Minarelli (Chinarelli/1E40QMB) then you can't necessarily just buy a Yamaha version and expect it to be exactly the same. The short case like the Yamaha Jog is a pretty close match to short case clones in general, but the longer cases often have different case designs. That's not to say you can't swap one into a Chinese scoot, but don't expect your current gears, CVT cover, or some other parts to work as spares for the Yamaha engine.

[Clank]

So a 1E40QMB is a clone of the Minarelli like the 1P39QMB is a clone of the GY6? And a Yamaha/Minarelli 49cc is different than just a plain Minarelli 49cc? Or is a Yamaha/Minarelli not even a Minarelli at all?

[90GTVert]

I am lousy at history and origins of these things and understanding licenses and such. As long as I can find parts and work on them, I tend to not care too much I guess. For that reason, someone else may have better answers for you than I can give you on exact origins and so on. This is just info as best I recall seeing it here and there over the years on forums.

Yamaha and Minarelli or Motori Minarelli are two separate companies, or at least were. I think Minarelli specialized in engines. Yamaha and Minarelli teamed up in some sort of business venture to make Yamaha/Minarelli two-stroke engines. For that reason, yes there are Minarelli and Yamaha engines because each company has many designs they didn't team up on, though I guess if you are talking about what we call Minarelli engines here, you might as well say they're all Yamaha/Minarelli engines or clones of them. The 1E40QMB and the larger versions and alternate versions are clones or closely based on the engines from the Yamaha Jog. AFAIK, the horizontal Jog engines are most similar to anything cloned from them. The short case 1E40QMB is a lot like those. I'm not totally sure if all of the other versions come from China making their own long case designs or if there are Yamahas out there that were like that. I know any common stuff in the US like the Zuma is a different case design than the long case Chinese engines.

I think Yamaha owns Minarelli now or owns part of them, I'm not really sure. Again, I have no real interest in their business models, I just like to work on whoever's engines they are. To make it more fun to try and figure out who's doing what, there are also partnerships like Linhai/Yamaha.

[frank50e]

Brent pretty well has it according to my understanding.Yamaha bought Minarelli engines for the Jog.At some point Yamaha squired Minarelli.The last of the Yamaha. Zuma and Vinos were manufactured in Taiwan.To the best of my knowledge all of the big 4 have formed partnerships to build power plants in the PRC and Taiwan.Genuine 2ts came from PGO in Taiwan and the Stella was a Vespa joint venture which they sold to Genuine.Resulting in legal action by Piaggio(Vespa) against Genuine and LML.There you have my understanding.As an aside the new All American Harley 750 is made in India.

[niz76]

I have had about 5 different versions of what we call the "Minarelli horizontal" or "Jog engine". *Note that there are older vertical Jog engines and then there are newer horizontal Jog engines so even just referring to them as "Jog engines" isn't exactly very specific haha.
In a (somewhat rare I think) SMC scooter, I found an odd looking "Minarelli Horizontal" that looks a lot like the actual Yamaha engine. I've read somewhere that these SMC engines are "as close to the original Minarelli as you can get" whatever that means... I still have that engine under the workbench with a bad crank btw.

Then of course, you have the typical longcase "Chinarelli" that many of us are used to seeing...
Then there's the "Chinarelli shortcase"
Then there's the kinda wonky mixture of the two longcase and shortcase that I'm partial to which is the "Adly Minarelli"...
Then there's the actual Yamaha engines- Is the Zuma a longcase?? The Jog definitely uses a shortcase...

Of all these different "Minarelli's" they all can use the same cylinders- I think some have a bit different exhaust angles? But I have taken a cylinder off a Zuma and put it on a Chinarelli and vice versa. They all can use the same Minarelli horizontal exhausts... again some finaglin' might be in order due to cylinder exhaust angles etc. but they're close enough to work. I have also taken a pipe off a Zuma and put it on a Chinarelli and vice versa.
I believe they all can use the same crank- although there are differences in many like small taper vs. large taper and the Adly using some weird 4t stator stuff and fan etc. but with the correct matching parts they're interchangable. (My Adly now uses a regular Chinarelli stator and fan due to a crank swap).
They can all use the same intakes...

Lots of different parts between the different Mina's too like CVT covers and belts etc like Brent mentioned. All this info might not be 100% accurate but you get the idea- all Minarelli horizontals are the same- but different!

Then don't forget the 90cc stuff too- more differences/sames there too!

[Clank]

So is a GY6 Japanese and a 1P39QMB the Chinese version? I've seen GY6 stamped on 1P39QMB components. Also I've been told that GY6 is a 150 only but yet the QMB parts will say GY6-50...

[Raizer]

GY6 was a Honda design originally.
139QMB is the Chinese designation for the 49cc variant, 152QMI = 125cc and 157QMJ is the 150.

[Lucass2T]

I think everyone summed it up pretty well.

There are eight diferent two stroke minarelli engines
- 50cc vertical, aircooled, chain driven, no CVT (Yamaha Razz/Mint)
- 50cc vertical, aircooled, belt driven, with CVT (Zuma/BW's)
- 50cc horizontal 'shortcase', aircooled, belt driven, with CVT (80's+90's Jog/axis)
- 50cc horizontal 'shortcase', watercooled, belt driven, with CVT (Aprilia Sonic GP)
- 50cc horizontal 'longcase', aircooled, belt driven, with CVT (Neo's/Ovetto)
- 50cc horizontal 'longcase' watercooled, belt driven, with CVT (Aerox/Nitro)
- 80cc/90cc horizontal, 'shortcase', aircooled, belt driven, with CVT (Jog 80cc/90cc)
- 100cc horizontal 'longcase', aircooled. belt driven, with CVT (Neo's/Aerox100)

[Raizer]

www.minarelli.com/aziendaeng.html
Little bit of history.
Some of there 50cc race engines were insane!

[Clank]

Wait I've got a '86 vertical jog with belt CVT. And I've got a spare that's a vertical but it's chain SH-50. Did they do them different in the States?

[moofus02]

Feb 26, 2016 10:15:46 GMT -5 Clank said:

Wait I've got a '86 vertical jog with belt CVT. And I've got a spare that's a vertical but it's chain SH-50. Did they do them different in the States?

Ii thought the vertical jog was a cvt and the razz was chain

[Lucass2T]

The SH50 is a Razz i think...it's called Mint in Europe. Same scoots

[Clank]

Yes the Razz vertical is chain drive and the Jog vertical is CVT belt drive.

[tiny]

My '88 Jog is a vertical and has a CVT



I know its a bad picture