Hi guys, I got an XCR 600,with V forse reeds,and S L P tripple pipes .I broke the bottom off the middle piston,and scored the walls.I took the other cilenders off and there's marks on them as well.The xcr is 11 years old and this is the first time the motor was appart. If I bore the 3 cilinders ot to 10 thousand pot new pistons and over size rings in will I still be able to trail like I used to. Any other ideas..Thanks alot guys..

Hi guys,Iwas also thinking about buying a 625 cc kit s.l.p. and boring to match. I'd still like to be able to go trailing in the evenings ,without worring about blowing it up..Any ideas. Thanks alot guys.... from Down north forms...

Cylinders are nicasiled, can't be bored out, must be sleeved.

Right on what would you suggest..

Re-nicasil

I may have some 680 cylinders for sale.

Thanks XCR 1250 ,I see you on here all the time ,you're a good man.I'm from the Cape breton highlands Nova Scotia. We had lots of snow this season,I still have 3 foot snow banks here.So if I re nicasilise can I go with the same sise stock pistons and rings,Thank you.

We have a set of 800 cyls, heads and pistons that need a little touch up. $425 + ship. (by the way, they still say that they are stock 600 cyls on the side. Make your buddies wonder)

Yes you can, just send pistons with cylinders to be re-done so they can clearance properly.

You know Peewee from N.S.??

HaHa now you're talking,I'd like to get a little more power,to try the 600 boys in the 660 feet.

HA HA I'm not sure 1250 do you know what part of N.S he's from I know most of the guys from the N.S form..

Not sure, PM him to ask for sure, nice guy.

Right on xskier .It's hard to believe 10 years ago I had the fastest 600 in 660 feet. I hope you got some riding in this year.I blew a piston yesterday and still trying to figure out what to do without the wife killing me ha ha . thanks alot guys .

don why cant we bore out these cylinders? the 600 xcr ones i have have a very thick "sleeve" thickness to them, there is plenty of wall to take them out to an ultra piston, then his stock pipes would work even better.

Normally it's so cost prohibitive to do so we don't recommend it to anyone, you can usually find a set of good used larger cylinders to use, and he was asking about doing a .010" overbore on 1 cylinder, I assumed a re-nic would be a better choice.


Don

Hi guys ,thank you all for you're comments ,but I think if I'm gonna have to buy 3 new pistons and rings and re nic maby I would buy some seckond hand 800 pistons and cilinders,If I'm not mastaken my 97 xcr got an 800 bottem end anyway,thanks alot guys....

You can tell by the diameter of the clutch bolt.

Thanks alot for you're coments guys ,but for the money it would cost to buy 3 new pistons an re nic..maby sombody got a set of cilinders and piston and rings for maby a700 or even better aan 800 need some advice.P.S I'd love to go bigger than 600..

See my other post.

No, see my other post!!!

Witch other posts...P.S.Thanks alot guys .I'm just a back yard boy with not much money ...THE WIFE...but I want to go bigger for next year.Build it over the summer when I finish crab fishing in Aug....................I'm looking for a 700 or an 800 top end ...thanks again I don't usualy go on line with my troubble....

How are you doing XSIER I'm looking for a 700 or 800 top end .....P.S ...Thanks alot guys...

HA HA HA .would I have to morgige my house for that motor on the bench...hahaha

Modi, doing fine here. Over the years of playing with non ves fuji triples we have an extra 800 top end sitting on the shelf. They are over bored xcr 600 cylinders with a cast iron sleeve and use 800 storm pistons. One end of one of the circlips came out and left a gouge in one cylinder. It looks to me like a .020 or .040 bore job would make them like new again. This top end was originally $2500 from HTG, around 170 hp. Before we noticed the damage it was giving the 809s fits.

Right on I'm looking to upgrade 90 m.p.h. don't do it aneymore send me some pics of the dammaged cilinder ..thank you..

I'm looking for a top end for a 700 or 800 xcr ..Thanks alot guys.........

I can imagin whats just kicking around you're shop ...... I want to up grade whithout my buds with the fire cats knowing about it HA.HA.HA....

I believe I have several sets of stock 1998 XCR 700 or Ultra cylinders/heads lying around, perhaps pistons too.


Don

if you don't want your firecat buds knowing what you're doing...this is the wrong place to be asking questions...they read this forum also..LOL..pm Don or the other guys and ask questions privately.. the 680 Ultra cyls & pistons work really well with SLP low reving pipes and SLP needles..head re-worked by Don...clutch kit and a gearing change and you'll have a mini rocket on your hands..

It seems like a dumb question, but is that sled in MODI's avatar a "wedge" chassis? If so, is this discussion really about a triple Monoblock engine, rather than a triple triple? Just wondering.

That's O.K It is a tripple tripple 1997 I changed the engine ,and put it in an Ultra body...

oh yeah, from that angle it is a lot cheaper to buy a used xcr top end. that is how i sold mine. the guy was looking to do a big bore ultra.

in all honesty, I went from the 800 ves to the 600 top end. same bottom end and stuff. i geared the sled way down. geared for about 90 mph. played with the pipes a little to get the 600 to run nice. I could run with strong 700 twins even me being a heavier guy. and off trail riding was a little easier, with the 800 top end you punch it in a panic to get up a hill or out of a tough spot and sometimes it got a little hairy. with the 600 the less power made it easier to ride hard.

Before I blew up all this winter my bubby with a 700 edge a 2004 get me a lenght and a half at 660 feet

"bubby"??

HA HA HA I ment buddy...

I know, but just couldn't help myself.

Thanks alot Don for all you're words of wisdom.I will be in touch with you over the summer.Thanks alot guys

Thank you Madcow but I 'm used to trailing my MODI I'd love to up grade 90 in the 660 is slow now.thank you much ...Brent

P M me any time thank you xskier ...

Thanks Madcowbut I've been riding over 25 years I WANT TO GO UP NOT DOWN i'M LOOKING FOR A 700 OR AN 800.. TOP END TO GET THEM FIRE CATS........THANK YOU

Now brent you wouldn't try to pull the helment over our eyes on this would ya man go with the 800 top man maybe when i get my new dragon in november i'll drop some 600 stickers on her for ya then will try them again eh boy wha ya say then hope ya find top end tho man got have polaris on the top

rIGHT ON Leo You know what I'm talking about ,You beat me twice I beat you once fair and squair but I blew up Modi last weekend ,and MODI is going bigger 700 or 800 next year see you boys next year HA HA HA

Right on Leo I love that 700 dragon,with the I.q suspenison that's an awsom ride........I'l see you next winter Leo and be sure to see me next winter.....