Curvy engine. - SV650.org

08-09-13, 07:45 PM

Cheap. Preferably with less than 20k on the clock. Until I get the time to have a good look at my knackered one, I may accept one with a ****ed crank.

28-12-13, 02:08 AM

Bump.

andrewsmith · 28-12-13, 08:57 AM

Ebay there was one for 200 quid before Christmas

Sent from my ST25i using Tapatalk 2

28-12-13, 11:08 PM

Can't seem to find one. There's a pointy engine on fleabay but I'm not certain the innards are compatible.

andrewsmith · 28-12-13, 11:09 PM

Pointy to curvy is the alternator and clutch off the curvy IIRC

28-12-13, 11:12 PM

Only the alternator and clutch is different??? Hmm... Might be something to look into.

I'm not sure if you know the story but I dropped a valve through oil starvation. So I'm pretty sure I only need certain innards. If the guts are the same then it may be much simpler.

andrewsmith · 28-12-13, 11:15 PM

Dropped valve is piston, valve and head
you sure its just top end starvation?

28-12-13, 11:16 PM

Not a clue. I still haven't had the courage to open her up.

andrewsmith · 28-12-13, 11:24 PM

Split her and see the damage

squirrel_hunter · 28-12-13, 11:41 PM

Quote:

Originally Posted by andrewsmith

Pointy to curvy is the alternator and clutch off the curvy IIRC

What's needed to change with the clutch?

If you do go for a pointy engine in a curvy frame ensure that its single spark. You will need to also swap the inlet rubbers for the carbed version. And then there is the oil cooler my understanding is there might be clearance issues with the standard exhaust which may be overcome with using the pointy header pipes. I've not done this swap myself but have looked into it before.

There are some other subtle differences and I'm not sure 100% of the solutions for example the PAIR takeoffs from the valve covers might be overcome by swapping with the curvy.

But yes the alternator needs changing not a big job. Just make sure its done up tightly enough as I've seen the damage when its not.

08-09-13, 07:45 PM	#1
Matt-EUC Guest Posts: n/a	Curvy engine. Cheap. Preferably with less than 20k on the clock. Until I get the time to have a good look at my knackered one, I may accept one with a ****ed crank.

28-12-13, 02:08 AM	#2
Matt-EUC Guest Posts: n/a	Curvy engine. Bump.

28-12-13, 08:57 AM	#3
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Curvy engine. Ebay there was one for 200 quid before Christmas Sent from my ST25i using Tapatalk 2 __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

28-12-13, 11:08 PM	#4
Matt-EUC Guest Posts: n/a	Curvy engine. Can't seem to find one. There's a pointy engine on fleabay but I'm not certain the innards are compatible.

28-12-13, 11:09 PM	#5
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Curvy engine. Pointy to curvy is the alternator and clutch off the curvy IIRC __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

28-12-13, 11:12 PM	#6
Matt-EUC Guest Posts: n/a	Curvy engine. Only the alternator and clutch is different??? Hmm... Might be something to look into. I'm not sure if you know the story but I dropped a valve through oil starvation. So I'm pretty sure I only need certain innards. If the guts are the same then it may be much simpler.

28-12-13, 11:15 PM	#7
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Curvy engine. Dropped valve is piston, valve and head you sure its just top end starvation? __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

28-12-13, 11:16 PM	#8
Matt-EUC Guest Posts: n/a	Curvy engine. Not a clue. I still haven't had the courage to open her up.

28-12-13, 11:24 PM	#9
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Curvy engine. Split her and see the damage __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

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