Sleeved BB motor 760 61x/64y going in my SN

[BBYamaha]

One of the board members is doing all the machine work and porting work. Will let him chim in when ready if he wants to, I am am sure my words will not do his work justice and from the looks of it, its amazing and I can't wait to run it.


The platform is a 61x non ported cylinder and 64 Y cases.


All the porting and machine work is being done by him. We are using the NW bb sleeves for this build. I am using 84.5 Vertex pistons from Superjet 113. I am going with a Brand New ADA Girdled head with the 760 84mm 35 cc domes.


I am using a limited b pipe for the exhaust and dual 44's with the crossover filled and dual single oem flame arrestors.


I also picked up a grp K lightened flywheel for the 61x motor that will be used.

A new hotrods crank is also going into the build

All this to power my old 93 SN...

 

[BBYamaha]

More pics

 

[2lick]

pictures look familiar... If I am right.... That guy always seems to build top notch stuff...

Should be a fun motor!!!!

Why no porting???

 

[BBYamaha]

Sorry I ment no ported stuff to start. The builder is porting the cylinders and the cases himself. He wanted to start fresh... Who wouldn't want to start fresh instead..

 

[#ZERO]

It's almost done and you need to send me those carbs and miscellaneous parts. :biggrin:

Also thanks for the link on those 75 dollar NW Big Bore sleeves.

Here are some bigger pictures of the engine with a smaller font style.

Here are the before pictures of those crusty parts you sent.

 

[Idok]

nice!


what did you do to refinish them?

 

[#ZERO]

Yes... all the aluminum parts were bead blasted and painted with 2-part epoxy zinc primmer and coated with metallic urethane paint.

The cases & cylinder were ported and machined for the big bore sleeves.

Here are a few more pictures in the gallery. http://www.x-h2o.com/photoplog/index.php?c=1&u=299

 

[JetManiac]

are those the "crusty" cases that I sent you?

Wow, that is an impressive engine.

 

[BBYamaha]

Yes those are the cases you sent me.

 

[Mike W]

You do some nice work Mr #.0

 

[#ZERO]

You do some nice work Mr #.0

Thanks Mike.... I'm going to building a few more of these big bore engines and off them for sale soon.

 

[JetManiac]

Wow, those are some impressive engine pics. Clean, clean!! I like and before and afterpics too.

I bet you can't wait to run that baby.

 

[BBYamaha]

your telling me, it gets worse as time goes on I have dreams about ported 760 motors, especially since I popped my stocker.

 

[MADMAT]

Man until i read it I thought those were brand new OEM. Nice!!!!

 

[BBYamaha]

He does amazing work, looks like the next big thing and Im at the front of the line! If only I could get this motor and ski down to daytona for some up front and personal reviews! If I do get down there I will be skiless and living off friends blink blink joshueric, sandman, and steveowe

 

[chad]

that is beautiful work right there 0

 

[BBYamaha]

Bling bling freash from ada

 

[#ZERO]

All done and ready to go. :bananapowerslide:

It passed the pressure test on both cylinders and the carbs are all cleaned up with new jetting.

 

[Matt_E]

Nice job Chris!

 

[#ZERO]

Fed-Ex tracking number 331141110001291