OzVMX Forum

Marque Remarks => Yamaha => Topic started by: steve7406 on August 12, 2013, 05:24:35 pm

Title: Yamaha sprockets
Post by: steve7406 on August 12, 2013, 05:24:35 pm

Rear sprockets for a 74 mx 250 where can you get them.

Title: Re: Yamaha sprockets
Post by: Nathan S on August 12, 2013, 07:48:49 pm

I bought mine from John Titman.
I don't know of any "off the shelf" option.

Title: Re: Yamaha sprockets
Post by: Andrew L on August 12, 2013, 08:33:00 pm

I think these are the same bolt pattern but only go up to 49 teeth they fit several other models as well search the site a bit more you might find what you need.

http://www.jtsprockets.com/catalogue/model/6330 (http://www.jtsprockets.com/catalogue/model/6330)

Title: Re: Yamaha sprockets
Post by: Nathan S on August 12, 2013, 09:27:59 pm

I'm pretty sure the IT125 used the early YZ125-IT175 bolt pattern, which is different to the MX250 pattern.

If my memory serves me, the MX250/360 and SC500 are the only ones to use that particular sprocket.

Title: Re: Yamaha sprockets
Post by: Iain Cameron on August 12, 2013, 10:47:06 pm

Might be wrong , but I think DT2MX and RT2MX use it same as well . Iain

Title: Re: Yamaha sprockets
Post by: oldfart on August 13, 2013, 07:01:40 am

PBI Australia.....  ;)

Title: Re: Yamaha sprockets
Post by: steve7406 on August 14, 2013, 04:53:07 pm

Thanks guys will ring PBI will also ring john titman again last phone call I made was told don't do em.

Title: Re: Yamaha sprockets
Post by: Davey Crocket on August 14, 2013, 06:36:37 pm

You need to talk to John, they have blanks and a wall full of all types of sprockets which he can re-drill the center to suit. Titty keeps a "book" with all of the measurements in it...old school but it works. If he hasn't got it on file, send him your old one so he can copy it.

Title: Re: Yamaha sprockets
Post by: Iain Cameron on August 14, 2013, 06:55:56 pm

John makes them , only speak to John the others are good for more modern stuff but John is the brains with sprockets . He's made 2 or 3 for me over the years . Iain

Title: Re: Yamaha sprockets
Post by: Nathan S on August 14, 2013, 08:00:46 pm

I got some random young bloke when I rang (definitely not John) and had no hassles?!

Title: Re: Yamaha sprockets
Post by: oldfart on August 14, 2013, 08:01:56 pm

PBI have them in stock    7054 -51