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Post by orginalcalssic on Mar 26, 2007 20:48:36 GMT -5
Hi guys,
I have heard of 600cc kits for the 500s, does anyone know any details about them? The sort I am after I know comes with a new barrel, 95mm (or 94.75) piston, gaskets and small end bearing. If anyone has any pointers it would be much appreciated
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Post by hopwheels on Mar 27, 2007 13:11:07 GMT -5
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Post by marlon on Mar 27, 2007 13:34:48 GMT -5
Does anybody have any more details on these? Are they impossible to kick over?
I've got a SR400, which is just a sleeved down SR500 - I imagine it'd be possible with that?
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Post by sjef on Mar 27, 2007 15:34:05 GMT -5
Hallo 600 cc kits are also sold by EGU egu-motoren.de/onlineshop/motorenteile/yamaha/02c637987b0952a0d.phpi willl not say anything about the quality see the german srforum i guess it is better and cheaper to buy you self a new liner and piston and rebore/resleeve your cylindre and spindle the cases to the new liner. won`t be suprised if the vd and egu cylindre are from the same origin. see also www.sr-500.de/www.kedo.dealso sells stuf to convert your engine to 600cc or more hope it will help you best regards sjef |
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Post by sjef on Mar 27, 2007 15:39:35 GMT -5
@ Marlon
the sr400 has a shorter stroke. just stroke it to 87mm and with a shorter rod , you have aSR500
best regards
sjef
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Post by marlon on Mar 28, 2007 11:51:04 GMT -5
Hey Sjef, I didn't realise it was that easy - I thought it had to be bored out.
Whammo, easy way to get more power out of the slow bastard!
So it seems those 600cc barrels aren't all that good (I couldn't find anything negative, but I'm reading behind the lines here) That's a turd. I know there's some japanese barrels out there that look different to the ones I've seen. I might follow that up with Deus...
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Post by sjef on Mar 28, 2007 14:08:07 GMT -5
Hallo Marlon,
have a Daytona 546cc bigbore kit myself, excellent quality, reinforced cylinderwall, can take a liner till 95mm with no risk at all.
comes with high comp JE piston and gaskets. i had my crank stroked till 92mm which also make 600cc.
you also can try Vanem (good to do business with)
best regards
sjef
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Post by pablosrfivehundred on Mar 28, 2007 14:46:53 GMT -5
ok, hold the phone.
the sr-500.de site has a 691 kit for the sr500??
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Post by marlon on Mar 28, 2007 15:46:19 GMT -5
Thanks for your replys, sjef!
Sounds like that's the way to go. One more pestering question... how much did you spend? I've heard nothing but good things about Vanem - they seem to be the way to go.
That, a flat slide carby should make a little beast! (With a short range)
Next up will be figuring out how to stop the bastard properly!
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Post by davedunsboro on Mar 28, 2007 17:12:26 GMT -5
I hope you can get it started first ? I,d like to see one of those bigger bore jobbies started with the hand crank method , ouch cheers Dave .
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Post by orginalcalssic on Mar 28, 2007 18:33:41 GMT -5
Hi sjef,
So is it possible to get to 600cc with that daytona kit pistons and all without stroking? And are you advising to steer clear of those german barrels? Still trying to work out the best place where I can get everything to do the job.
Thanks everyone
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Post by sjef on Mar 29, 2007 10:54:03 GMT -5
Hallo, judge for yourself, here is a pic of a egu cilinder  see also www.fleisspelz.de/motorang/egu600cc is no problem for the 546 Daytona bigbore kit but it will need a new liner and a 95mm piston or a 95mm bore with a nikasil coating. but i do not have any experience with that. when you decide to bore a original barrel to 95mm make sure ther are some studs placed to reinforce the barrel. best regards sjef |
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Post by sjef on Mar 29, 2007 12:12:12 GMT -5
@ Marlon, at the time i had the import for Daytona sr500/w650 parts for the netherlands, so i just payed the import price ;D i have ordered some parts @ vanem : good to do business with. @ pablosrfivehundred miles motors doesnot supply a 691 kit, they will rebuild your 500cc engine to a 691cc for a nice amount of euros. best regards sjef BTW just remembered www.caferacer.com.au/used to have a 600 cc kit, quality should be oke. |
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Post by marlon on Mar 29, 2007 14:24:27 GMT -5
Hey Sjef!
Thanks for that last link mate. Those fellas are in my state and might be worth giving a call.
Any other New South Welshmen dealt with these guys? I've heard good things about them on other forums...
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Post by colinjay on Mar 29, 2007 17:28:28 GMT -5
Hi guys,
I have a 598cc SR engine that I built-up in 2001-2002. I picked up a 7mm under length conrod while in the US in 2001 and had a guy in Melbourne (AUS) stroke a crank 7mm using this rod to give a 91mm stroke. Combined with a 91.5mm piston that I had gives 598cc by my math. I still haven't had the engine running as I havn't descided on what cam I am going to put into the engine. Hopefully I will finish this engine in the not to distant future and it will be "wheelie" good.
CJ
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