Project Tri Z Motor

[Yamahauler]

I have all my parts except I need one new gear for the tranny. And I need a stainless bolt kit (it was shipped today)

- Ronnie ported cylinder (MX port)
- Bored .010" over
- Ronnie flywheel and cyl head.
- Boyeson Reeds
- rebuilt crank (with wiseco hot rod)
- Wiseco Piston
- Polished inner crank case
- Dial a Jet
- All new bearings and seals in motor.

thats all I can think of...I think Im missing something, but anyways, have a look.

http://www.trackshare.com/forum/attachment.php?attachmentid=10290&d=1162530652

[hrc85250r]

better be using at least a 38mm carb...it will haul balls im sure....

[Billy Golightly]

Athena gasket kit? Didn't know they made one for the Z, interesting. Have fun with it, I know it'll rip.

[Yamahauler]

better be using at least a 38mm carb...it will haul balls im sure....
I was thinking 36, because 38 you would lose quite a bit of bottom end, wouldnt you?

[ghostridermb]

Technially no you wouldnt but thats another story.

What ever happened to your US90 build dont give up on this one like you did the US90 you quitter cant believe you junked it.

[Yamahauler]

Athena gasket kit? Didn't know they made one for the Z, interesting. Have fun with it, I know it'll rip.
Bought it off Ebay, guy called it a Cometic gasket kit...it was about $30 i think.

Are they cheap-o's or something?

[Yamahauler]

Technially no you wouldnt but thats another story.

What ever happened to your US90 build dont give up on this one like you did the US90 you quitter cant believe you junked it.
The 90 is still going on.. I have all the parts for it to except a coil.

Its going on the backburner a little longer until I get this motor together.

Go paint you Honda 50 muffler and call the bike restored...dink

[Billy Golightly]

Bought it off Ebay, guy called it a Cometic gasket kit...it was about $30 i think.

Are they cheap-o's or something?


If its the same company (has to be, exact same name) they build bad ass pistons for 4 strokes and I've been told (not positive) that they are the OEM supplier of pistons for Porsche. So it should be a pretty high quality kit:cool:

[ghostridermb]

The 90 is still going on.. I have all the parts for it to except a coil.

Its going on the backburner a little longer until I get this motor together.



Party on Wayne :naughty:

[Derrick Adams]

Looks like your off to a good start there. I have a couple of those motors laying around to work on myself.

[TRI-Zbrian]

likw said before.... a 38mm carb would be a nice match i think for your set up... i had a 38 mm on a tri z with alot less done then that and it still ripped big time... i had one on an all stock machine and it flew....just make sure to get it dialed in... but with a dial a jet you will be on your way.... looken real nice man....:w00t:

[Yamahauler]

Thanks for the compliments. Took me around a year to get all these parts. The motor wont be in the frame for probably another year, money is tight.

[maggiesboy]

looks good. I just got bearings and seals installed in mine 2 days ago. We plan on a start up on sunday :D

[Yamahondaman]

L@@K'N G@@D !!!!! and i like that gasket set also !! i'm gonna have to check into that...the Motor will like the 38mm Carb., mine LOVES the PWK 39 i have..
i can't wait to hear how your bike runs..it should pull a 14-38 or 40 with no Problemo !!!