New and improved KTM690 WUNDERFEST - Page 414

Albie · 10-30-2012, 02:15 PM

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.

Mudguts · 10-30-2012, 02:47 PM

Quote:

Originally Posted by Albie

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

Albie · 10-30-2012, 02:53 PM

Quote:

Originally Posted by Mudguts

So your sending it off to be bored out too 728cc

Hmmmm

Might have to look into that.

thorinoakenshield · 10-30-2012, 03:35 PM

Quote:

Originally Posted by Mini Trail

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

crankshaft · 10-30-2012, 03:55 PM

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?

Mudguts · 10-30-2012, 04:12 PM

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.

crankshaft · 10-30-2012, 04:18 PM

Quote:

Originally Posted by Mudguts

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

Albie · 10-30-2012, 04:22 PM

Quote:

Originally Posted by crankshaft

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.

Albie · 10-30-2012, 04:29 PM

Quote:

Originally Posted by crankshaft

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.

Mudguts · 10-30-2012, 04:35 PM

Or the monster 790cc.

http://www.frauenschuh-tuning.at/ind...id=ktm_lc4_690

crankshaft · 10-30-2012, 04:47 PM

Quote:

Originally Posted by Mudguts

Or the monster 790cc.

http://www.frauenschuh-tuning.at/ind...id=ktm_lc4_690

My wiener isn't small enough

. Yea, says the guy that owned a 950

DirtJack · 10-30-2012, 06:16 PM

Quote:

Originally Posted by crankshaft

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?

crankshaft · 10-30-2012, 06:40 PM

Quote:

Originally Posted by DirtJack

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.

LukasM · 10-31-2012, 02:12 AM

Quote:

Originally Posted by crankshaft

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....

crankshaft · 10-31-2012, 06:37 AM

Quote:

Originally Posted by LukasM

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

10-30-2012, 02:15 PM	#6196
Albie Kool Aid poisoner Joined: Mar 2004 Location: NWA Oddometer: 4,811	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. __________________ Good. Bad. I'm the guy with the gun. Guess what doofus, nobody reads your lame blog.

10-30-2012, 03:55 PM	#6200
crankshaft ^OP Guns are for pussies Joined: Aug 2004 Location: Burlingtron,VT Oddometer: 13,783	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? __________________ Just say'IN

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10-30-2012, 04:12 PM	#6201
Mudguts when in doubt GAS IT Joined: Jan 2006 Location: Some were in , lostralia Oddometer: 1,659	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.

10-30-2012, 04:35 PM	#6205
Mudguts when in doubt GAS IT Joined: Jan 2006 Location: Some were in , lostralia Oddometer: 1,659	Or the monster 790cc. http://www.frauenschuh-tuning.at/ind...id=ktm_lc4_690