Author Topic: MX250B transmission Ratios Vs YZ250C  (Read 3364 times)

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Offline YZ250H

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MX250B transmission Ratios Vs YZ250C
« on: March 28, 2012, 08:07:59 pm »
Are they the same ??
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline BETRIC

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #1 on: March 29, 2012, 07:22:04 am »
YES THEY USED THE SAME MOTOR #509 prefix
DELTEK, 72 MINI TRAIL, 73/4 XR75, 77/78 XR75, DG MONOSHOCK FRAME XR75, REDLINE FRAME XR75, PK RACING MONOSHOCK FRAME XR75, JWRP XR FRAME, SL70K1, 81 CR80RB, TY80A/B, YZ80A/B/D, GT50/80A, GTMX80A, 73 GTMX, GT1, COOPER MX, COOPER ENDURO,MX360A,MX250B,YZ125X MX100, 72 XL250, TC100,TL125, TY250C,IT250J

Offline GMC

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #2 on: March 29, 2012, 08:39:33 am »
You still banging on about this bike
You know Ted will be on your case again soon :D

Most gears come up for 2 models…
Part # = 509-17211-00-00
Part Description = GEAR,1ST WHEEL (33T)
Model Count = 2
MX250B 1975 250 MX250 Off-Road
YZ250C 1976 250 YZ250 Competition Motocross

Part # = 509-17121-00-00
Part Description = GEAR,2ND PINION (22T)
Model Count = 2
MX250B 1975 250 MX250 Off-Road
YZ250C 1976 250 YZ250 Competition Motocross

Part # = 509-17141-00-00
Part Description = GEAR,4TH PINION (26T)
Model Count = 3
MX250B 1975 250 MX250 Off-Road
MX400B 1975 400 MX400 Off-Road
YZ250C 1976 250 YZ250 Competition Motocross

Part # = 365-17241-10-00
Part Description = GEAR,4TH WHEEL (26T)
Model Count = 8
DT250B 1975 250 DT250 Dual Purpose
DT250C 1976 250 DT250 Dual Purpose
DT400B 1975 400 DT400 Dual Purpose
DT400C 1976 400 DT400 Dual Purpose
MX250A 1974 250 MX250 Off-Road
MX250B 1975 250 MX250 Off-Road
MX360A 1974 360 MX360 Off-Road
YZ250C 1976 250 YZ250 Competition Motocross
G.M.C.  Bringing the past into the future

Shock horror, its here at last...
www.geoffmorrisconcepts.com

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http://www.geoffmorrisconcepts.com/8/news/

Offline YZ250H

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #3 on: March 29, 2012, 10:14:54 am »
Thanks Geoff,

I'd better delete this now before Ted sees it  ;)
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline Ted

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #4 on: March 29, 2012, 10:53:49 am »
Nice try Tentpeg....7 + 1 = 8

You work out any plans for CD yet?
81 YZ 465 H   77 RM 125 B

Offline YZ250H

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #5 on: March 29, 2012, 07:42:36 pm »
Nice try Tentpeg....7 + 1 = 8

You work out any plans for CD yet?

Crap, I thought if I spread my threads around that would throw you off the scent   ::)

I'm trying to work out how close what I bought is to a YZ250C.  The gearbox was the last thing I was worried about.  That seems Ok going by what Geoff said so, it should be all good from here  ::)

Only very rough plans for CD at the moment, but I've been to every one since CD5 where I met you, YZHilly, Vandy and a whole heap of other top blokes from this forum, so I can't start missing them now.  YOUR mates Vandy and Mainline are a bit undecided as to what they are doing ::)
If I go via Brisbane it adds 6 hours to my trip.  I was going to meet up with the boys in Brissie, but may have to change that to Goondoowindi (sp?)
There were thoughts of bringing one car down with one bike each but not sure about that.  By then we will each have more than enough bikes to fill a trailer each  :-\  Maybe we should hire a Pantec  ;D ;D

Still all up in the air  :-\
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline Ted

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #6 on: April 02, 2012, 06:27:03 pm »
I noticed you didn`t list Sewerline...err mainline in your top blokes....Can`t say i blame ya ;D
81 YZ 465 H   77 RM 125 B

Offline YZ250H

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #7 on: April 03, 2012, 06:08:57 am »
 :D

Yeah, he didn't turn up until CD6  ;)
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline vandy010

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #8 on: April 03, 2012, 08:43:18 am »
I noticed you didn`t list Sewerline...err mainline in your top blokes....Can`t say i blame ya ;D
you just keep light'n that Barbie Ted :D
Tony,
i may have some (but not complete) MX250 gearbox stuff here.
i'll have a dig in the shed. if there's anything you need in particular?
"flat bickie"

Offline YZ250H

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Re: MX250B transmission Ratios Vs YZ250C
« Reply #9 on: April 03, 2012, 04:31:16 pm »
A couple of rusty tips on gears / wheels, but I haven't had a really close look yet.
I'll get back to you Mick  -thanks mate
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.