WTB 4 pistons and 1 jug, so far...for 750

C

cSRT4

New member
Hey everyone!!

Havent been on here for a few years (havent needed to buy any parts) since sold my MAX to my brother at that time. Sadly however, a piston blew up on him (bottom of the piston crumbled apart) last week. It is a 92 750 but the engine has nickelsil sleaves. Yamaha dlr told us that nickel wasnt used on the 92 and that it could be bored over .020 (maybe it is a nerwer engine in it??). We purchased .020 oversized pistons from royal distributing for it (not from dealer) but machine shop said jug/cyl. couldnt be bored over b/c nickel? Seems like gonna need 1 jug and he wants to do all 4 pistons while its apart (other 3 are bit scored and have over 10000km on them...compressions down etc. etc.).

looking to buy parts the "correct parts" to get him back out in the snow!!
 
Kaw550 said:
first I would look for a different dealer, I may have a jug
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LOL. I here ya. Different info. every time he phones!! Still dunno if can use the oversized pistons/bore the cylinder, but shoot me a pm on the jug you have. dunno if they are all the same but need the one on outside of pull start side of engine. THANKS!!
 
If you bore you will have to re-nickelsil and that will get expensive. Better off finding a cylinder.. One of you experts out there correct me if I'm wrong!
 
they are all the same you cannot oversize it unless you sleeve it because its nikasil, look at the wiesco piston chart somewhere on the page where the oversize is listed it will have a note that says it requires a sleeve.
 
If it's a 92 it will have 89A cast in the side. 93/94 was 8AX.

I have seen 92's with 93/94 cylinders on them. That is OK but all 4 should be the same.

opsled
 
cSRT4 you can call Tony Pinter 955-8109 9 to 5 he is the guy to help you and he is close to you and me he is a great guy and knows his vmax4"s and has parts most of the time, hope this helps
G
 
i have 3 nice 92 cylinders. i have to double check but would sell them all for 400 shipped. i have no pistons
 
Still looking? I've got a cylinder from a 92 and a complete brand new Wiseco piston set for a 750 which includes pistons, rings, circlips &wrist pins.
 
opsled said:
If it's a 92 it will have 89A cast in the side. 93/94 was 8AX.

I have seen 92's with 93/94 cylinders on them. That is OK but all 4 should be the same.

opsled
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Yup they are stamped with 89a on the cyl. so least now know it is for sure a 92 engine lol. thanks for the info.
 
turch said:
cSRT4 you can call Tony Pinter 955-8109 9 to 5 he is the guy to help you and he is close to you and me he is a great guy and knows his vmax4"s and has parts most of the time, hope this helps
G
Click to expand...

Thanks Turch. My bro already spoke with Tony and he has for a 93/94 only. Appreciate the help!!
 
dermestid said:
Still looking? I've got a cylinder from a 92 and a complete brand new Wiseco piston set for a 750 which includes pistons, rings, circlips &wrist pins.
Click to expand...

Thanks Dermestid PM'd ya back. He is defn. interested in going with Wiseco's and your cyl. Appreciate everyones help.
 
jugs

u are better off going with the updated jugs 93/94 they have much improved porting and will make u another 12 hp the wiesco and yamaha pistons are the only ones 2 use i have used other jobber once and the piston pin pushed in and the ring walked around to the exhaust port and wipped out the jug and piston so for me only 2 pistons u can put in that are not going 2 cause u problems , update ur pipes 2 800 pipes. good luck with that
 
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