OzVMX Forum
Marque Remarks => Yamaha => Topic started by: ty4 on February 16, 2015, 08:49:05 pm
-
a mate scored what we think is a DT2MX but not %100 sure...engine number DT1F...186 xxxxx..does this sound about right
cheers
tony
-
It's a no reed valve 5 port traily, well was. Nice early model score ;)
(http://i951.photobucket.com/albums/ad360/tdee754/s1200_1972_Yamaha_DT1_F_250_Trail_2_zps498335d9.jpg) (http://s951.photobucket.com/user/tdee754/media/s1200_1972_Yamaha_DT1_F_250_Trail_2_zps498335d9.jpg.html)
(and you can polish the cases to the shiny mirror look shown in brochure.)
-
Engine number dt1f seems to cover a few different models,
but I think with the 186 you may be on the right track
according to this
http://www.cyclerestorer.com/pages/show_man_serial_num.php?sort_field=4&manufacturer=Yamaha
-
thanks boys..the mate is a very happy boy
-
DT2mx is a reed valve, the DT1mx is the porty tim
-
Bugger! :( Cheers Tim754 (getting older, brain turning to turds...)
-
OK the DT1F # was used for all the DT 's after reeds where used so this Number started in 1972 then was used with the same prefex right up to 1974 when the longer case motor was used in the dt250's . so just because the prefex is DT1F does not make it a DT2MX . The DT2MX from 1972 had a different frame to the DT. Iain .
-
http://www.merrittmotorcyclesalvage.com/yamahaidentification.htm
Not sure if this helps or confuses the issue but according to this link the DT2MX starts at DT1F-185101 [if i'm reading it right] but not sure if that means frame or motor. Being yamaha the numbers 'should' be the same on both anyway. I had one brand new out of the box [good days those lol], & boss had an RT2MX. After that he got an SC500 & me the MX250--was never sure if that was a good move as loved the DT & got 'bucked off' [& F@@##d off with] the MX but 'had to have' the latest model every year regardless eh!!. Pic of your mates bike would sort it!!. Cheers.
-
My DT1 engine number starts with DT1F & it's a none reed valve & gear lever shaft comes out both sides of the case & I think it came out in 1971. Jimson
-
1972 DT2mX frame amd engine numbers DT1F 185101 to 195339 . parts code 324
-
I always thought that the DT1F numbers started with the round swingarm models in 1970. Had an Orange tank DT1 when I was a kid and pretty sure it had DT1F on the engine and frame. Sure does confuse a lot of people now, had a guy turn up the other day with an RT2 that he thought was RT1 because the he bought it as an RT1 project bike. The read valve and the 19" front wheel told the story.
-
hi , on the subject of the some what confusing early yamaha DT engine and frame numbers. in the early 80's the local yam dealer gave me an 8 page list of 100's of old yam codes,eng and frame numbers- the numbers are' almost' identical to the ones quoted on yamahaenduro.com (US yam forum) and on the cyclerestorer.com site. as the owner of 13 DT1/2/3's and a shitload of early dt stuff . have a fair interest in the details.
68 DT1 - eng and frame numbers DT1 00101 to 14090 69 DT1 B - DT1 15001 to 42520
69DT1 S - DT1S 90101 to 91573 70 DT1 C - DT1 50101 to 66389
70 DT1MX - DT1 95101 to 97218
1971 DT1 E - DT1F 00101 to 03942 (with close ratio box) and DT1F 020101 to ? / 032101 to ?
1971 DT1MX - DT1F 090101 to 093684
1972 DT2 - DT1F 105101 to 134257 72 DT2MX - DT1F 185101 to 195339
1973 DT3 - DT1F 135101 to 165633 73 MX250 - 364 000101 to 011040
happy to be corrected/abused/ridiculed. cheers g.
-
kicking myself [now] as dumped my DT1 square tube swing/arm frame about 20 years ago as was getting prone to cracking & got sick of welding it--'now i want it back', still got the original steel slider forks but using an RT2 frame [i think] RT1 number lol. Yamaha right confused the issue--as have an AT1 [piston port] but you see it often on 'trademe' selling an AT2/3 as an AT1. In the words of Mr Know-it-all, Yamaha, 'you realy should have known' [better]. Probably saving on number punches!!.