Okay Yam experts is this a mx250a??

[motomaniac]

I thought that they were yellow , this looks like DT to me but I want to know form those that do know.please

http://cgi.ebay.com.au/YAMAHA-1973-MX250A-VMX-PRE75-READY-FOR-RESTO-NOW_W0QQitemZ230373263007QQcmdZViewItemQQptZAU_Motorcycles?hash=item35a351069f&_trksid=p3286.c0.m14

[BJJ]

Hi Motomaniac.  This is a custom paint job. 
Happy to send more photos so you can check if this is a DT or MX.
I think I have the model right,  but cannot be sure.

[cyclegod]

I thought that they were yellow , this looks like DT to me but I want to know form those that do know.please

http://cgi.ebay.com.au/YAMAHA-1973-MX250A-VMX-PRE75-READY-FOR-RESTO-NOW_W0QQitemZ230373263007QQcmdZViewItemQQptZAU_Motorcycles?hash=item35a351069f&_trksid=p3286.c0.m14

1973 MX250 was silver with yellow stripes, 1974 was yellow with black and white block stripes but both have an engine and chassis prefix "364"

[BJJ]

This listing is 364-xxxxx

[motomaniac]

I thought that they were yellow , this looks like DT to me but I want to know form those that do know.please

http://cgi.ebay.com.au/YAMAHA-1973-MX250A-VMX-PRE75-READY-FOR-RESTO-NOW_W0QQitemZ230373263007QQcmdZViewItemQQptZAU_Motorcycles?hash=item35a351069f&_trksid=p3286.c0.m14

1973 MX250 was silver with yellow stripes, 1974 was yellow with black and white block stripes but both have an engine and chassis prefix "364"

What was the 74 model -an MX250b???Confusing since the first monoshock is a mx250 b.

[mx250]

Non-original plastics and the colour scheme looks like one of the DT250A's but there is a screw in plastic cap so its a resprayed MX tank. Not Thermoflow shox but otherwise looks pretty original. There's a chunk missing from the rear of the sidecover that can be seen.

There is no difference except for colour between an MX250 (silver grey with yellow stripe with black pinstriping) sand an MX250a (US Yamaha racing Yellow with black and white details) - and this is one of the two.

I'm not sure of what the floral display around the foot pegs is .

[mx250]

I thought that they were yellow , this looks like DT to me but I want to know form those that do know.please

http://cgi.ebay.com.au/YAMAHA-1973-MX250A-VMX-PRE75-READY-FOR-RESTO-NOW_W0QQitemZ230373263007QQcmdZViewItemQQptZAU_Motorcycles?hash=item35a351069f&_trksid=p3286.c0.m14

1973 MX250 was silver with yellow stripes, 1974 was yellow with black and white block stripes but both have an engine and chassis prefix "364"

What was the 74 model -an MX250b???Confusing since the first monoshock is a mx250 b.

The MX250b is the monoshock, the real question is what's the difference between a MX250b and the YZ250b .

[motomaniac]

I had a MX125a , My first full sized bike .I bought it new in 75 .It was the yellow and Black color scheme.
Im confused ?? At least I was right about the YZ125B's

[Freakshow]

BJJ - what is it with the floral display ?   nothing like making it look good  or are you hiding somthing

[Nathan S]

The bike is an MX, not a DT.

I know this because I've seen it, but just from the pic, you can see the following parts that identify it as an MX rather than a DT:

rear guard mounts.
swing arm (no holes for pillion pegs).
side cover, and mount on the frame.
tank.
lower triple clamp.
front hub & rims.
seat.

None of these are impossible to reproduce/swap, but they're all a pretty good guide that the bike is the real deal.

1973 = MX
1974 = MX-A, YZ-A, YZ-B.
1975 = MX-B, YZ-B.

I guess that we should copy the Porsche guys, and talk about the 1973 model as being the "pre-A".

[motomaniac]

Thanks Guys. Yes I did think about a few of those things that you pointed out.
So Nathan S its an MX 1973

[Noel]

Floral display is Crawford River Grass track samples
Cheers
Noel

[Nathan S]

Thanks Guys. Yes I did think about a few of those things that you pointed out.
So Nathan S its an MX 1973

Dunno whether its a 73 or a 74.
AFAIK, the two main differences between the years are:
1. 30 vs 34mm carby.
2. Colour (which is obviously not relevant for this bike).

The train-spotters may know of more.

[vandy010]

Nathan's right about the carby & colour being the only difference between the 73 & 74 models.
{good poop }
i did read somewhere ages ago {lost in time} the prefix of 364..... is common to both with the earlier {silver 73} having a lower number. whatever/wherever it was i read showed the transition numbers from the 73 to 74 but i never saved it as i didn't own one then.

[dave]

Hey Mick nice rooster tail behind the MX125. Was that from last weekend at Nudgee?