Tri-Z 490 drag bike

[Bryan Raffa]

got my yz490 motor today and im verry happy with it!!!, Took it apart and checked it out..looks like its allready ported and has some exaust port work done.boysen reeds, everything is in excellent condition... nice ebay buy!!! Its got a 25 on top of the piston and appears to be a stock one, Does any one know what size it is off hand, Looks good huh billy..

[Bryan Raffa]

and more pics

[Kintore]

Sweet Bryan! Cant wait to see a drag version, what Z is this going into?

[Bryan Raffa]

Sweet Bryan! Cant wait to see a drag version, what Z is this going into?

this will be a all new one, so ill have the trail bike, the MX, and a drag bike

[Kintore]

What year of Z? And now your all set! Wish I had 3, wait a tick I did!

[Bryan Raffa]

LOL! its gonna be a mix of both 85 frame 86 front end. Stripped down version,bare essentials...top mount tank +12 swinger, banshee rear end, blaster axel, out of frame pipe..

[Kintore]

Ronnie better watch his ass eh lol

Nice project raffa, as normal I want progress pics!

[Bryan Raffa]

[QUOTE=Kintore]Ronnie better watch his ass eh lol

Im not gonna say anything to that... but i do wanna run with the big dogs!!!!
oh pic for shure, probley nothing till its powder coated and rolling..not to mention i got alot of beadblasting and polishing to do.

[Mosh]

hey brian,did you see what chainsaw did to his old drag z? they took the 490 jug,cut it in half and welded a liquid cooled upper portion to it.must have spent some coin.that motor was SICK.the appearence of the engine alone was all polished with little diamond plate scribes all through the engine block.he has sold the motor.to someone on this board.but i dont think i am at liberty to spill the beans.whatever the case,if he shows next year at t.f.o7 and you show with yours,that will be a great match-up.cant wait to see it rip

[atcsteve]

Thats the kind of race Im looking for!!! Im tired of killing 4 strokes and banshee's!!That thing sould be a ROCKET!!!!Any reason for 12" swingarm? Ive been trying different lengths,with a high HP motor,and finding that 7 1/2" is about perfect.Im changing the 10" that I have on now, for a 7 1/2".

[MTS]

Maby its just the picture, But That Intake kinda looks scary, is that off level on the top or The boost port Bridge takin out???

[Bryan Raffa]

Maby its just the picture, But That Intake kinda looks scary, is that off level on the top or The boost port Bridge takin out???

thats just the camera angel..and it comes off the jug off set to the left.. It does look kinda funky in that pic but i assure you that its fine.

Moshman.. Ive seen that on e2s and its insane! Ive heard how mutch money went into that motor and I have no plans of spending thousands on a motor.
(at this time!)

[Mosh]

thats just the camera angel..and it comes off the jug off set to the left.. It does look kinda funky in that pic but i assure you that its fine.

Moshman.. Ive seen that on e2s and its insane! Ive heard how mutch money went into that motor and I have no plans of spending thousands on a motor.
(at this time!)

i have not heard how much went into it?so how much was it.all i know is a whole lotta lovin.i cant swing that kinda coin either or i would buil the tri-shee

[03 ORANGE SHEE]

i know who has that motor
and brian ,that motor looks a old as my old "slow" 1983 rag
looks like the 83 250 and 490 use the same BIG eight petal reeds

[Bryan Raffa]

i know who has that motor
and brian ,that motor looks a old as my old "slow" 1983 rag
looks like the 83 250 and 490 use the same BIG eight petal reeds

Its a 1986 490 ya i noticed that too!!!