Air designation does not clarify scooter By bobf (Read 596 times)

[bobf]

I have posted this before, maybe not on this forum, but still seeing folks think that the air designation determines which scooter it is. It just meant that this particular scooter has passed some air pollution test the US has put on them.

What is really needed is a description of the engine, vertical for the 244cc or horizontal for the 257cc and any other identifications like maker, name of scooter, name on registration ticket, the YY250T and other similar numbers are only the air testing numbers of acceptance.

Now I will put in a link to the approval.

.arb.ca.gov/msprog/onroad/cert/hmc/2010/benzhou_m1590006_250-257-275_0d8_h.pdf" rel="nofollow" target="_blank">.arb.ca.gov/msprog/onroad/cert/hmc/2010/benzhou_m1590006_250-257-275_0d8_h.pdf

(I could not get to copy and paste it or it would be here now.)
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[richardthescooter3]

Your right Bob, the description of the engine is all you need. Don't go by the tag (my tag is wrong) You either have the 244cc or the 257cc.

[bobf]

Must admit an error in my post. I assumed all those YY#######'s were approval designations. Not so and I find that even my scoot has a designation of 2008 #YY250T on the EPA noise emission requirements of 70db etc. tag. These scooters are built in China by Shanghai JMStar Motorcycle CO., LTD. Jonway Motorcycle USA CO is the importer, not the manufacturer. As I understand it. There is also Roketa that seems to be operating as a distributor and parts area. How they relate to Jonway I have not found out. Very confusing and no structure charts show up.

So I was misleading some folks that have read my post. Sorry about that as I had assumed all those YY###### numbers were air evaluation numbers when they are really machine types made in China and imported by Jonway. In the case of my machine there are two distinct machines, MC 54 250 with vertical 244cc engine and MC 54B 250 with horizontal 257cc engine. My scoot also has a B appended to the 250 number on the body. I have no idea what that B stands for and it is not shown in the catalog.

So for all, please ignore my post about air designations. But do look further than just the Jonway YY###### numbers as they still do not tell all. Try to identify the engine size for all. If possible also use the name of the scoot they sell it under as those can be found with descriptions of the machine, for the currently sold ones. Older models need more than just the YY numbers as I have yet to see a table the describes what those numbers really stand for.

Apologies for my mistakes.
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[fflintstone]

On the Roketa,the MC 250 B is the 257 cc and the MC 250 is the 244 cc--we had a quite a bit of discussion about it on scootdawg back in 2008 when earlwb began to chronicle his purchase and subsequent use of a MC 250 B,for almost 10,000 miles---he not only modded the thing ,he took it apart bolt by bolt and took pictures and showed how to change a tire,add an electric fuel pump,added a new top box and put a solar cell panel on top of his top box and wired it to his battery--he thought it would help handle the increased electrical demand from the electric fuel pump and some gauges he added to his dash..I have some links to his journey if anyone is interested--happy trails,fflintstone

[bobf]

Roketa does not agree with that description at all. Here are two links to Roketa,

MC 54 250

.roketa.com/product/1/0/2658.shtml" rel="nofollow" target="_blank">.roketa.com/product/1/0/2658.shtml

And engine.

.roketa.com/product/parts_detail.jsp?partId=33096&partName=ENGINE%20ASSEMBLY%283%29" rel="nofollow" target="_blank">.roketa.com/product/parts_detail.jsp?partId=33096&partName=ENGINE%20ASSEMBLY%283%29

MC 54B 250

.roketa.com/product/1/0/27312.shtml" rel="nofollow" target="_blank">.roketa.com/product/1/0/27312.shtml

And engine.

.roketa.com/product/parts_detail.jsp?partId=30732&partName=ENGINE%20ASSEMBLY%283%29" rel="nofollow" target="_blank">.roketa.com/product/parts_detail.jsp?partId=30732&partName=ENGINE%20ASSEMBLY%283%29

I have MC 54 250B on my scoot and it definitely is not a 257cc engine at all. Not sure I would ever buy that idea of 250B means the larger engine.
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[bobf]

And here is another reason to not depend on the YY250T designation to have much accuracy on what we are talking about.

.alibaba.com/product-gs/937040370/Freego_UV_01C_2_wheel_yy250t.html" rel="nofollow" target="_blank">.alibaba.com/product-gs/937040370/Freego_UV_01C_2_wheel_yy250t.html

Just above the picture is a comment about 66 other YY250T products.
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