YAMAHONDAMAN ported cylinder pics!

[Yamahauler]

BEFORE

http://i24.photobucket.com/albums/c48/coryv_76/Picture017.jpg


AFTER

http://i24.photobucket.com/albums/c48/coryv_76/cylinder005.jpg


BEFORE

http://i24.photobucket.com/albums/c48/coryv_76/Picture018.jpg


AFTER

http://i24.photobucket.com/albums/c48/coryv_76/cylinder002.jpg


BEFORE

http://i24.photobucket.com/albums/c48/coryv_76/Picture020.jpg


AFTER

http://i24.photobucket.com/albums/c48/coryv_76/cylinder004.jpg


BEFORE

http://i24.photobucket.com/albums/c48/coryv_76/Picture019.jpg


AFTER

http://i24.photobucket.com/albums/c48/coryv_76/cylinder003.jpg



http://i24.photobucket.com/albums/c48/coryv_76/cylinder001.jpg

[DeePa]

what did that cost?

mike

[Yamahauler]

$100 +shipping both ways.

Ronnie says the wrench report's got nothin on this one!

[Kintore]

Damn, looking sweet!

What kinda port did you get cory?

[Yamahauler]

MX Port. I cant wait to get this motor together, I need all bearings, bolts and powdercoating.

[Bryan Raffa]

yah!!!!! hoooo! get it raggggg!

[Darius1502]

$100 +shipping both ways.

Ronnie says the wrench report's got nothin on this one!

Hey Ronnie,

How does this port job affect the Z's powerband?

I may want to do this to my Z...(will I lose bottom end?)

Is this like Phase I Wrench report porting or Phase II?

http://216.165.194.66/ktmtalk/photogallery/galleries/members/DSC02726.JPG

[KASEY]

ok ,,, i see port work ,,, now i ask ,,, would it be better it you sleeved it and split the exhaust port so it could be wider ????? wide single exhaust ports grab rings,,,, just a honda guy thinking of ways to make a yammy better...........................................: D :D

[Yamahondaman]

Them Pics look GREAT Cory !!! In the Future let us know how it run's .. good i hope !! :wondering

[Mosh]

Them Pics look GREAT Cory !!! In the Future let us know how it run's .. good i hope !! :wonderingthat second boost port looks real nice ronnie.that thing should rip nicely.

darius, BEAUTIFUL Z. how do you like the banshee tires on there?

[Darius1502]

Yep banshee tires and rims and hubs. I have a new set of gold rims I still need to put on it.

[Yamahondaman]

ok ,,, i see port work ,,, now i ask ,,, would it be better it you sleeved it and split the exhaust port so it could be wider ????? wide single exhaust ports grab rings,,,, just a honda guy thinking of ways to make a yammy better...........................................: D :D
:p Heck i wished "i need" to do more to the TRI-Z's But............ WHY ??
( They ) Run me with the FIVE HUNDRED'S Now !!! if i did any more......
i would have to run with the "Busa's" in the 1/4 !! :lol:
maybe next year........ after TF07 ...........i can go "WEST" And race some
Honda 250's !!! :D

[Billy Golightly]

If you bevel the big wide oval ports enough the bridge isn't really as necessary was you would think. Its just important that however its beveled is gradual where it doesnt let the ring just jump out and then slam back into the groove.


Nice work Ronnie. Put a stock swinger onyour Z and lets go flat tracking. I'll even let you use my LRD pipe and silencer :naughty:

[Darius1502]

Them Pics look GREAT Cory !!! In the Future let us know how it run's .. good i hope !! :wondering

Tell me about the porting work you do for these Z's. Is it mid range and top end where we see the most improvement?

What happens to the low end?

Thanks!!

[Yamahondaman]

Tell me about the porting work you do for these Z's. Is it mid range and top end where we see the most improvement?

What happens to the low end?

Thanks!!
ok .......... you know about TRI-Z Power i assume ?? Kinda like Banshee....
NO Bottom , some Mid and then ..... TOP ..... "they" call em the "Light Switch" Power Band (s) ... the Honda ATC-TRX ..."on the other hand" Like Kasey implied.... "why don't you re-sleeve and make the Exhaust WIDER ?????
Because ....... "re-sleeved" Cyl's has NEVER and WILL NOT Run like the Stock O.E.M. Sleeve.. been there ...... done that..
....HONDA Cyl's. are MUCH Different than Yami.... the YAMI Cyl's can be Ported MORE then the Honda Cyl's...
Darius..... on the Porting TRI-Z Thing ....... NO Low end is Lost ....Just BETTER Mid and MORE TOP !!! when you Port a "Honda" ...Low end is Lost BUT.........
Not Noticed !!!

[Darius1502]

Yes, I love the low end on my Z. its great...much better than the 250r. Seriously I have a stock '86 Z and a stock '86 R. The Tri z is not as quick in the upper mid range BUT the Tri Z kills it on the bottom.

If I can keep the bottom end...I'd love to send you my cylinder.

Thanks for the info!! Would I be crazy to run the stock 32mm Mikuini?

[Bryan Raffa]

ok .......... you know about TRI-Z Power i assume ?? Kinda like Banshee....
NO Bottom , some Mid and then ..... TOP ..... "they" call em the "Light Switch" Power Band (s) ... the Honda ATC-TRX ..."on the other hand" Like Kasey implied.... "why don't you re-sleeve and make the Exhaust WIDER ?????
Because ....... "re-sleeved" Cyl's has NEVER and WILL NOT Run like the Stock O.E.M. Sleeve.. been there ...... done that..
....HONDA Cyl's. are MUCH Different than Yami.... the YAMI Cyl's can be Ported MORE then the Honda Cyl's...
Darius..... on the Porting TRI-Z Thing ....... NO Low end is Lost ....Just BETTER Mid and MORE TOP !!! when you Port a "Honda" ...Low end is Lost BUT.........
Not Noticed !!!

I can vouch for that no low end is lost! it just his like a mother in all gears hence the liteswitch name because it hits instantly and doesnt let off. I had to go up one tooth on the front sproket because 1 and 2 gear were so quick to rev out, and still at that it revs out quick. still possibly could go up another tooth to mellow it out to what a stock bike feels like. A 38mm or bigger carb is a must! phase 2 job is useless with out it! take the 32mm and put it on the shelf and get a flat slide.

[85ytz250n]

One of the things I love about my Z is the gas mileage that I get, even when running flat out for miles on end other guys are always gassing up before I need to even look in my tank. How much will the 38mm make on that? What kind of reliability will you get out of a cylinder that is ported like this? I am almost positive that my Z is on the stock bore, thats about 21 years on one top end, how much more maintenance is a porting job like this compared to stock? I apologize for all the nitpicking but I want to get the best combo.

Barry