OzVMX Forum

Marque Remarks => Yamaha => Topic started by: jimg1au on August 25, 2007, 05:06:38 pm

Title: MX/DT 360 PISTONS
Post by: jimg1au on August 25, 2007, 05:06:38 pm

hi
can pistons be ordered for these engines or do you have to troll through ebay and other listings like i have to with my 1979 yz400f.it looks like you can get 250s but i already have a 1973cr250,looking for 350+ to go in my antig slider frame.
cheers

Title: Re: MX/DT 360 PISTONS
Post by: cyclegod on August 25, 2007, 06:07:02 pm

These seem well priced...
http://cgi.ebay.com/ebaymotors/New-Yamaha-RT1-Piston-Kit-360-Enduro-RT-1-RT-1-0-25_W0QQcmdZViewItemQQcategoryZ35595QQihZ007QQitemZ170136064849QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/New-Yamaha-RT1-Piston-Kit-360-Enduro-RT-1-RT-1-0-50_W0QQcmdZViewItemQQcategoryZ35595QQihZ007QQitemZ170136064835QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/New-Yamaha-RT1-Piston-Kit-360-Enduro-RT-1-RT-1-0-75_W0QQcmdZViewItemQQcategoryZ35595QQihZ005QQitemZ150122042167QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/Yamaha-70-71-RT1-8th-OS-Piston-KIT-NEW-NOS_W0QQcmdZViewItemQQcategoryZ35581QQihZ009QQitemZ190142047528QQrdZ1QQsspagenameZWDVW

Title: Re: MX/DT 360 PISTONS
Post by: jimg1au on August 25, 2007, 06:50:27 pm

so rt1 pistons are the same as mx360 or yz360 pistons
cheers
jimg

Title: Re: MX/DT 360 PISTONS
Post by: Tim754 on August 25, 2007, 08:54:21 pm

Might need to cut some holes in the buggers?? you know for reed valve transfer 7 port as opposed to 5 port thing non reed valve thingo stuff....please correct me if wrong. Tim

Title: Re: MX/DT 360 PISTONS
Post by: mx250 on August 25, 2007, 10:49:30 pm

Quote from: jimg1au on August 25, 2007, 06:50:27 pm

so rt1 pistons are the same as mx360 or yz360 pistons
cheers
jimg

I wouldn't assume it! Even with holes cut for the reed valva inlet I would measure.

My experience has mainly been with RD's, RZ's, Banshee's and LC's and with these there is a lot in common but enough differences with skirt height, weight and dome to be carefull.

Measure and check is my advice. The difference is between just working and working well (performance).

Title: Re: MX/DT 360 PISTONS
Post by: Nathan S on August 27, 2007, 11:07:10 am

I've got a brand new standard size DT piston you can have if you want it.

Title: Re: MX/DT 360 PISTONS
Post by: Freakshow on August 27, 2007, 04:32:49 pm

i have full sets of both the MXA /DT360A pistons, what O/S are you after ?  a couple of them i have double ups, if its one of those i can sell you one, also have rings for most Sizes in the 360's also same deal.

cheers Freaky

Title: Re: MX/DT 360 PISTONS
Post by: Freakshow on August 27, 2007, 04:39:22 pm

Cycle god did you suss out the 8th oversize ? is that a size hehehe ( 2mm sounds more respectful)

I think the RT use the dyke rings like the early DT so the piston crown is differant and thesection is missing where the 'L' ring sits, they look the same kinda otherwise so i guess you could buy it and see, i have been buying up a lot of those shift cams ( after my last experiance) from that seller and he always post quickly if thats any help