Check out my new r !! Curtis sparks 265cc stroker !!

[ATC-RYDA]

Picked this thing up today still needs completion .. The swinger is actually stock with 5inches added to it someone did a nice job on it as well as the extended durablue . Let me know what u guys think .. Also i've never owned a big bore 265 and i need an exhaust for this 1 so is there something i should be looking for or just any aftermarket pipe will do??? Gonna need a few parts as well rear caliper,axle nut disc hub,retaining ring,actaully a whole rear brake system, and i'm curious as too where i may get a longer brake line .. Thanks for any input guys !!

[dcreel]

Awesome! Looks great..

[Mosh]

Nice buy..Swinger looks nice too.
If that is a true Sparks engine, that sumbitch is gonna run hard...He was real good with the R engines back in the day.

Get a ESR ATC 5 pipe for it.

[ATC-RYDA]

Nice buy..Swinger looks nice too.
If that is a true Sparks engine, that sumbitch is gonna run hard...He was real good with the R engines back in the day.

Get a ESR ATC 5 pipe for it.

is that a pipe that i can still buy new ?? or do i have to look for a used 1 ??

[Mosh]

Just go to ESR's website and call them.
Eddie Sanders Racing.

[dcreel]

is that a pipe that i can still buy new ?? or do i have to look for a used 1 ??

http://www.eddie-sanders-racing.com/product_p/atc5%20pipe.htm

[ATC-RYDA]

Thanks guys i'll check it out

[leviblue]

I was wondering who in Jersey was gonna pick that up...good score and yes thats a real Sparks...no wonder you were selling your other toys

[ATC-RYDA]

lol yea i was contimplating it 4 a few days but not a bad deal .. the guy still actually has a nice 86 R runner which i beleive u can get for about $1000 bux.. if trailprotrailpro looking for 1 blue ..

[Dirtcrasher]

Contemplating? It's a SPARKS!! No matter how broke I was I'd be all over that puppy as long as it was in the build stage and not the "teardown" stage.

Nice trike and piece of ancient history!

There are lines on EBAY (SS coated clear) that they'll make any length and and bend fitting. Just search around and you'll find it.

The brake guts can be had in the classifieds section......

[ailll1]

Nice rear shock, I never saw one of these!!!
Nice grab you got there :)

[jason85atc250r]

Picked this thing up today still needs completion .. The swinger is actually stock with 5inches added to it someone did a nice job on it as well as the extended durablue . Let me know what u guys think .. Also i've never owned a big bore 265 and i need an exhaust for this 1 so is there something i should be looking for or just any aftermarket pipe will do??? Gonna need a few parts as well rear caliper,axle nut disc hub,retaining ring,actaully a whole rear brake system, and i'm curious as too where i may get a longer brake line .. Thanks for any input guys !!

NIce trike you got there

Not trying to be a A-hole but a 265cc is just a 250r bored 80 over.

[Dirtcrasher]

^ 2MM's make a sleeve VERY THIN; If it's a SPARKS I imagine it got a thicker sleeve and some great porting.................

[jason85atc250r]

Actually Wiseco makes pistons up to 140 over for the 85-86 250r motors. My 86 trx250r has a 100 over in it now. It's not a issue with ther 250's

[Dirtcrasher]

^ Thick sleeve huh??....................

[jg350x]

very very nice.

[KASEY]

A 250R BORED .080 OVER IS 261.5CC'S,,, i would like to know the bore and stroke on that... and wonder if it might be a 2mm stroke,,,

[ATC-RYDA]

Lol i thought that might throw a few of u guys off but actually it is a curtis sparks motor ,, which is also a stroker with a spacer plate under the cylinder .. Wheather or not its just a 87-89 bottom end with a 85-86 top end or just a 85-86 bootom end with a stroker crank im not sure yet... But i am certain that its a sparks worked top end with a spacer plate below the cylinder .. Making it a stroker as well..

[KASEY]

HAVING A SPACER DOES NOT ,,, automaticlly make it a stroker... and if its in fact a 265 with a long rod ,, it would be .100 over with a short rod piston ,,, and why does the "sparks" look freshly engraved on the dirty motor? ohh and those 400ex rear hubs won't fit a 250r axle..

[puggerton03]

Nice. It looks like he cleaned off the area where "sparks" is so we all could see it better. Am I right?

[leviblue]

HAVING A SPACER DOES NOT ,,, automaticlly make it a stroker... and if its in fact a 265 with a long rod ,, it would be .100 over with a short rod piston ,,, and why does the "sparks" look freshly engraved on the dirty motor? ohh and those 400ex rear hubs won't fit a 250r axle..

I can tell ya 2 weeks ago I got a call from my motor builder that a freind called him to see if anyone he knew was interested in buying a R or two. I was told by my mech that he had a project R with a Sparks jug and head. What was done to it and who did it I couldn't tell ya. I passed on it cuz of two other builds but my mech assured me that the jug was the real deal. A guy that I ride with was interested but wanted a running bike so I never got to see it up close but I trust my mech and so does most of South Jersey. Hes been building 250R motors for 25 yrs and hasn't F'd me yet. I wouldn't be downing the guy just yet he just got it home. Like any used bike you won't know what you got till you open it up. who knows what Rick has right now

[MonroeMike]

Nice find.

[yj350]

why is that piece of wood in pic 5,why doesnt the shock hold it up

It looks like the linkage is missing from it.

[ATC-RYDA]

yea the guy had the linkage polished and never reassembled so in the the pic with the peice of wood it was kinda just " fresh off the back of my truck " .. but it was the first thing i assembled so thats taken care of now.... alos i did clean the area on the jug so you guys could get a better view at it and the reason it looks so fresh is because someone actually went over the original engraving with some type of white paint / marker..

[ATC-RYDA]

so i did a little investigating 2day and come to find out the cylinder is from a 87-89 trx and the bottem end is a 86-86 atc .. so i believe this confirms that it is in fact a stroker ?? beings that the 87-89 cylinder is taller to begin with , plus a spacer plate under the cylinde r, only tells me that the bottem end must have a long rod beings that its a standard atc crank ... does that sound rite ??

[Dirtcrasher]

Twist throttle, lengthened swinger, That pup was made to RIP IT UP!!

I hope you get into it faster than some of these other guys do, they get rare motors and take 5 years to get it done; Get this puppy running!!

[jason85atc250r]

so i did a little investigating 2day and come to find out the cylinder is from a 87-89 trx and the bottem end is a 86-86 atc .. so i believe this confirms that it is in fact a stroker ?? beings that the 87-89 cylinder is taller to begin with , plus a spacer plate under the cylinde r, only tells me that the bottem end must have a long rod beings that its a standard atc crank ... does that sound rite ??

The cylinders are the same height they all interchange. Your motor more then likely has a 87-89 long rod crank with a 85-86 short rod piston. Thats why the spacer plate.

The " curtis sparks 265 " is just his way of identifying it. That was the cc limit for running the 2 stroke class at the ATVA nationals back in the day before 4 strokes came out . If you had a big bore 250r you had to run the Open 2 stroke class with the Banshee's. The cylinder is more then likely just a stock one with his good port job.

[ATC704LIFE]

Last time i tryed to put a 87-89 cylinder on a 85 86 bottom end the piston didnt come all the way to the top so how are the clynders interchangeable?

[jason85atc250r]

Last time i tryed to put a 87-89 cylinder on a 85 86 bottom end the piston didnt come all the way to the top so how are the clynders interchangeable?

What piston were you using? Were you using the 87-89 one?

[ATC704LIFE]

No 86 piston

[ATC-RYDA]

hmmmm ... yea why is that ????

[KASEY]

all ATC AND TRX250r cylinders are the same AII OF THEM,,, they will bolt on any 250r engine ,,,, the rod configuration is what dictates piston height. the pin location is 5mm different on short rod and long rod pistons ,, the stroke on all 250r's is also the same,,, trx pistons go to .080 over and atc pistons go to .140 over thats why you see spacer plates on stock stroke engines to extend the cylinder past the .080 piston.

[KASEY]

Last time i tryed to put a 87-89 cylinder on a 85 86 bottom end the piston didnt come all the way to the top so how are the clynders interchangeable?

the only way this could happen,,,,,, is if you had a 87-89 piston on a short rod... thats the ONLY WAY .... IF YOU HAD A 86 PISTON IT WOULD BE AT THE TOP.... AND IF IT WASN'T,,,, like i said wrong piston,,,, here look 85 on the LEFT 88 on the RIGHT!! short rod piston RIGHT long rod LEFT.. OK NOW ITS RIGHT

http://i56.tinypic.com/b5p502.jpg

http://i54.tinypic.com/21m6gyt.jpg

[NINJA]

the only way this could happen,,,,,, is if you had a 87-89 piston on a short rod... thats the ONLY WAY .... IF YOU HAD A 86 PISTON IT WOULD BE AT THE TOP.... AND IF IT WASN'T,,,, like i said wrong piston,,,, here look 85 on the right 88 on the left!! short rod piston right long rod left..

http://i56.tinypic.com/b5p502.jpg

http://i54.tinypic.com/21m6gyt.jpg You mean 85 cylinder on the left and 88 on the right. 88 piston on the left and 85 on the right. Don't want peeps getting confused.

[ATC704LIFE]

Yeah 86 piston on a 86 bottom with 87 -89 cylinder piston wont come to top...

[KASEY]

Yeah 86 piston on a 86 bottom with 87 -89 cylinder piston wont come to top...

yes it will... why is this so confusing??? with a 86 bottom and piston it makes no difference what cylinder you use!!!! they are the same.... think about it,,,

[jason85atc250r]

yes it will... why is this so confusing??? with a 86 bottom and piston it makes no difference what cylinder you use!!!! they are the same.... think about it,,,

Thanks for backing me up with pictures i thought i was wright.:D

Kasey my 86 trx250r has a 100 over piston without a plate. Everything is 86 parts. The 5mm plate was for 87-89 cranks with the 85-86 piston.

Ther was a thinner plate they used back in the day something about a YZ piston if a remember rite.