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 Post subject: Yamaha RT1 360 YZ Piston
PostPosted: Thu Jun 14, 2012 6:00 am 
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Joined: Sun Jun 10, 2012 9:12 am
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I am looking for some Yamaha RT1/YZ 360 Wisceo pistons Part number Wisceo 184P2 Can anyone help me?


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PostPosted: Sun Jun 24, 2012 3:19 pm 
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Nobody has any of these pistons? wiseco 184 P2


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PostPosted: Sat Sep 08, 2012 8:53 pm 
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Can anyone help me? email me at hdfreak99@hotmail.com thanks


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PostPosted: Thu Sep 27, 2012 4:27 pm 
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Joined: Tue Aug 31, 2004 1:44 am
Posts: 283
Location: Maysville, AR
the 74-75 YZ360 is reed valved and the 70-71 RT1 is a piston port engine and the intake side of the piston is different with the reed valve piston has windows and the piston port has solid skirts on the intake side.

might want to watch the listings on Ebay or other more local areas.

are you putting together a 74-75 YZ360 or a RT1?

the 72-73 RT2 and RT3 are reed valve engines and those have the windows on the intake side of the piston.

_________________
(2) 1968 DT1 1970 RT1M,1970 DT1C 1971 RT1B Enduro 1974 MT250 1974 DT250A (2) 1975 DT400B 1974 DT100,1978 DT175
1975 CR250M1 1979 CR250R 1979 Kawasaki KZ400H1 Jesus is Lord!!


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PostPosted: Mon Oct 08, 2012 5:23 pm 
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I have a NOS wiseco kit for the RT1,2,3,MX it comes with the piston rings and clips wiseco numbers is 231P6 but it wont fit the YZ 360 DAve is right with his advise and according to my books mabe you know something I dont if you want it let me know


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PostPosted: Tue Oct 09, 2012 12:45 am 
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Location: Maysville, AR
i think a 184 P2 is for a 1970-71 RT1M and Enduro plus the RT1B Enduro and RT1B MX of 1971 and it is .25 mm over.it is a first over piston if i have this straight.

i have a 184 P5 (i think) in a 1970 RT1M.it is a 060 piston which is 1.5 mm larger than standard.

Yamaha pistons only go up to 1 mm over.

what bike are you building?

_________________
(2) 1968 DT1 1970 RT1M,1970 DT1C 1971 RT1B Enduro 1974 MT250 1974 DT250A (2) 1975 DT400B 1974 DT100,1978 DT175
1975 CR250M1 1979 CR250R 1979 Kawasaki KZ400H1 Jesus is Lord!!


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PostPosted: Tue Oct 09, 2012 5:16 am 
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Joined: Mon Oct 08, 2012 2:27 pm
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I have alot a nos yamaha pistons and rings if as well as some wiseco also I got an good RT motor laying around to if anyone is looking for one Please note I am not a dealer just been collecting for many years and since I am getting up there and cant ride any more starting to let alot of my stuff go :(


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PostPosted: Tue Oct 09, 2012 6:11 pm 
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Yamaha RT1 360 without a reed and Iam looking for a Wiseco 184 P2 piston. Yamaha pistons go in 1.0 mm and wiseco are 0.5 mm the 184 P2 piston is a 80.5 mm piston can anyone help me find a piston or two?


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PostPosted: Tue Oct 09, 2012 7:23 pm 
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Joined: Tue Aug 31, 2004 1:44 am
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Location: Maysville, AR
actually 80.25 mm over if memory serves,might PM Vintagelsinore and ask him.he might have some lying around.

Yamaha oversizes is as follows.80.25 , 80.50 , 80.75 and 81mm.

_________________
(2) 1968 DT1 1970 RT1M,1970 DT1C 1971 RT1B Enduro 1974 MT250 1974 DT250A (2) 1975 DT400B 1974 DT100,1978 DT175
1975 CR250M1 1979 CR250R 1979 Kawasaki KZ400H1 Jesus is Lord!!


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PostPosted: Wed Oct 10, 2012 7:56 pm 
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Joined: Sun Jun 10, 2012 9:12 am
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I just know the piston I need is a wisceo 184p2 it is 80.5mm


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PostPosted: Thu Oct 11, 2012 2:21 pm 
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Location: Maysville, AR
if Vintagelsinore does not show back up i found some possible sources online.
https://bore-tech.mycafecommerce.com/Wiseco_Pistons

these are a larger over size but they are out there.
http://www.ebay.com/sch/i.html?_sacat=0 ... wiseco+184

_________________
(2) 1968 DT1 1970 RT1M,1970 DT1C 1971 RT1B Enduro 1974 MT250 1974 DT250A (2) 1975 DT400B 1974 DT100,1978 DT175
1975 CR250M1 1979 CR250R 1979 Kawasaki KZ400H1 Jesus is Lord!!


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PostPosted: Thu Oct 11, 2012 2:40 pm 
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Joined: Mon Oct 08, 2012 2:27 pm
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he emailed me dave sorry I emailed him to let him know I dont have any of the wiseco 184 that I have found so far I still have about 3 more totes filled with pistons and rings to go thru just havent had time to do it yet .Your in Ar you could come by and take some of parts off my hands for me :)


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PostPosted: Thu Oct 11, 2012 6:41 pm 
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Joined: Tue Aug 31, 2004 1:44 am
Posts: 283
Location: Maysville, AR
i got a lot going on right now or else i would surely take you up on it.

i am pretty consumed with my 1978 DT175 project right now.

where in Arkansas you are at? i am in the NW corner of the state myself.

_________________
(2) 1968 DT1 1970 RT1M,1970 DT1C 1971 RT1B Enduro 1974 MT250 1974 DT250A (2) 1975 DT400B 1974 DT100,1978 DT175
1975 CR250M1 1979 CR250R 1979 Kawasaki KZ400H1 Jesus is Lord!!


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PostPosted: Thu Oct 11, 2012 7:18 pm 
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Joined: Mon Oct 08, 2012 2:27 pm
Posts: 5
Iam in Mammoth spring kinda central part of state on MO. border .what kinda of bike is he putting this piston on did he saty I looked and found some 284s yamahas that fit the RT1/RT1MX i have 1st,2nd,and3rd oversizes they are marked 80.25,80.50,80.75 but i havnt found the rings yetbut he never sayes what he puting it on or am I missing something here ? :?


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PostPosted: Thu Oct 11, 2012 8:19 pm 
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Joined: Sun Jun 10, 2012 9:12 am
Posts: 7
I have a 1970 Yamaha rt1 360 that has a wiseco 184p2 piston and the piston I have in it is cracked that is why I am looking for a wiseco 184p2 piston


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