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Old 10-30-2012, 02:15 PM   #6196
Albie
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LOL, so the more I tear into my motor the more I find I need to do. So new piston to go along with the new rings, and of course the cylinder needs to be worked over. If the cylinder is worn past spec, then it's going to have to be sent off.

I did pick up a used cylinder and piston with rings with 4.5K miles on Ebay for $100. Figure I'll toss that on for now, and next time I need to do a top end just swap cylnders and pistons.
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Old 10-30-2012, 02:47 PM   #6197
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Originally Posted by Albie View Post
LOL, so the more I tear into my motor the more I find I need to do. So new piston to go along with the new rings, and of course the cylinder needs to be worked over. If the cylinder is worn past spec, then it's going to have to be sent off.

I did pick up a used cylinder and piston with rings with 4.5K miles on Ebay for $100. Figure I'll toss that on for now, and next time I need to do a top end just swap cylnders and pistons.

So your sending it off to be bored out too 728cc
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Old 10-30-2012, 02:53 PM   #6198
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So your sending it off to be bored out too 728cc
Hmmmm Might have to look into that.
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Old 10-30-2012, 03:35 PM   #6199
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Originally Posted by Mini Trail View Post
When my rockers went bad I did some searching and discovered that it wasn't uncommon. I note that you have the newer style rockers not what came with my 2009. On mine one shaft came out and I was able to push the other one out with my finger plus the needle bearing came apart. Yours just looks ceased.

I would replace both rockers.

What is that red oil you are using?
Yeah, I read about bad rockers in the supermoto forums.
Somewhere in here:
http://www.supermotojunkie.com/forum...KTM&order=desc
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Old 10-30-2012, 03:55 PM   #6200
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Does anyone know anything about the BIg bore kits for the 690? Char on SM junkie did a big bore mod to his 690sm using a stock comp JE piston. I'm interested in finding out more info. Wasn't it 692cc?
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Old 10-30-2012, 04:12 PM   #6201
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Have a look here



http://www.gw-racing-parts.de/index2...is=2010&lan=en


KTM 690 bigbore - tuningkit. New camshaft stage 2. Cylinder boring for 104 mm and new LFC plating. CP forged pistonkit of the extra class 104,00 mm, + 2 mm oversize, 717 cc, compression 12,5 : 1. Delivery including the suitable piston rings, wrist pins and wire locks.Cylinder head porting inclusive radius valve seat cutting. Inclusive shot peen of the combustion chamber and channels. Including crankshaft balancing.
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Old 10-30-2012, 04:18 PM   #6202
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Have a look here



http://www.gw-racing-parts.de/index2...is=2010&lan=en


KTM 690 bigbore - tuningkit. New camshaft stage 2. Cylinder boring for 104 mm and new LFC plating. CP forged pistonkit of the extra class 104,00 mm, + 2 mm oversize, 717 cc, compression 12,5 : 1. Delivery including the suitable piston rings, wrist pins and wire locks.Cylinder head porting inclusive radius valve seat cutting. Inclusive shot peen of the combustion chamber and channels. Including crankshaft balancing.
I was hoping for something made here in the good ole US of A. 220, so after the duty, taxes and exchange.... $5,000,000 US dollars
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Old 10-30-2012, 04:22 PM   #6203
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Originally Posted by crankshaft View Post
Does anyone know anything about the BIg bore kits for the 690? Char on SM junkie did a big bore mod to his 690sm using a stock comp JE piston. I'm interested in finding out more info. Wasn't it 692cc?
Heh, I was just looking through that. I think it was 699 cc.
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Old 10-30-2012, 04:29 PM   #6204
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I was hoping for something made here in the good ole US of A. 220, so after the duty, taxes and exchange.... $5,000,000 US dollars
Char got his stuff here. The piston was a JE from Engine Dynamics.
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Old 10-30-2012, 04:35 PM   #6205
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Or the monster 790cc.

http://www.frauenschuh-tuning.at/ind...id=ktm_lc4_690
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Old 10-30-2012, 04:47 PM   #6206
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My wiener isn't small enough. Yea, says the guy that owned a 950
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Old 10-30-2012, 06:16 PM   #6207
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My wild ass guess was correct, 61hp at the rear wheel at 7500 rpm
Linear curve, right to 7500! Now its time to ride it in anger for a bit and make sure everything is good!
Those are good numbers. Crankshaft what year is this bike, 2012 with an actual 690 cc or earlier with 654 cc?
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Old 10-30-2012, 06:40 PM   #6208
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Those are good numbers. Crankshaft what year is this bike, 2012 with an actual 690 cc or earlier with 654 cc?
09 654cc

AFR is 13 across the board and I'm running it in open loop for now to make sure the fueling is good. Don't forget, 61 was with the insert still in the exhaust.
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Old 10-31-2012, 02:12 AM   #6209
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I was hoping for something made here in the good ole US of A. 220, so after the duty, taxes and exchange.... $5,000,000 US dollars

You are not paying any of that shit for a shipment under $1000, at least not if it's mailed.

€220 is $285, shipping should be about $30 or so. I'd definitely prefer a proven piston designed by Emil Grossewächter (he is good and has a lot of experience with 690s) and manufactured by CP over a JE experiment....
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Old 10-31-2012, 06:37 AM   #6210
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You are not paying any of that shit for a shipment under $1000, at least not if it's mailed.

€220 is $285, shipping should be about $30 or so. I'd definitely prefer a proven piston designed by Emil Grossewächter (he is good and has a lot of experience with 690s) and manufactured by CP over a JE experiment....
Thanks for the info Lukas, I agree. That price isn't bad actually and I tend to get stuff from Europe faster than I do from California
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