New and improved KTM690 WUNDERFEST

[BK.RD.RNR]

Originally Posted by 690Emaf10

Now my problem is the bike won't fire..... Fuel pump primes but it doesn't fire. The other thing I notices was that all of my instrament panel goes off each time the bike cranks. I'll have to pull the pump again and make sure there are no kinks in the lines and everything looks good.

Stupid question but, you did remember to reconnect the quick realease for the fuel line right?

[Buzztail]

Originally Posted by RoninMoto

Once you make the power supply, just connect a hose with a jug of desired solvent and have it gravity feed through the injector as it is cycling. It will be slow/nonexistent at first but should become a stream when it is clean.

Was thinking I'd build something along the lines of a pressurized flush or a back flush set up even. Would pulsing it be better than simply holding it open?

[Uller]

Originally Posted by Buzztail

Was thinking I'd build something along the lines of a pressurized flush or a back flush set up even. Would pulsing it be better than simply holding it open?

pulsing it would allow pressure to build behind the solenoid for a more forceful blast of cleaner each time it was cycled. I did backflush it first then the normal direction.

I don't have an ultrasonic cleaner and used the syringe method shown on youtube. seemed to work fine. I've got about 10,500 mi. on my original injector and carry a spare with me.

I believe they are in the ballpark of $150 here in the states.

[Gros Buck]

Originally Posted by Buzztail

Was thinking I'd build something along the lines of a pressurized flush or a back flush set up even. Would pulsing it be better than simply holding it open?

From what I understand, the injector in itself IS a pump. When the coil is activated, it triggers a hammer that pushes the fuel inside the motor.

That said, your local Diesel Engine Tune Up shop will clean these injectors better then you will ever do for few bucks ...

I know that just trying to dip that think into some "liquid mechanics" wont work 100%

Paul Jr.

[Buzztail]

Got it back together and not I'm getting no fuel. I can pull the injector out and get a clean spray pattern, but with my finger in the back of the throttle body I get nothing from the injector. Pull it out and it's not consistently pulsing now

Injector? electrical?

Connections look good, new spark plug, good fuel pressure (though I don't have a pressure gauge that'll read that high) drop a little fuel in the TB and it fires right up- No fuel through the injector though. It there a way to test the electrical? Something like a noid light? I doubt my DVM would read quickly enough to see the pulsing.

[B2]

After a gear lever any ideas ? the hammerhead is outa stock for another month

[crankshaft]

Originally Posted by B2

After a gear lever any ideas ? the hammerhead is outa stock for another month

You might be better off without the Hammerhead I had a problem with the splines on mine and they never called me back, been waiting 8 months! No big deal, it's only $80.

[Mudguts]

Originally Posted by B2

After a gear lever any ideas ? the hammerhead is outa stock for another month

I had a look at my 500 exc they are closer 690 then hammerhead and cheaper then a 690 lever

[.chris]

Originally Posted by beaney

Buy a decent torx socket set

Tried your idea, and now I have managed to strip the torx bolt.
Who the hell uses torx for such tight bolts, will be replacing it with a proper bolt if I ever get it out.

[Night Falcon]

Originally Posted by .chris

Tried your idea, and now I have managed to strip the torx bolt.
Who the hell uses torx for such tight bolts, will be replacing it with a proper bolt if I ever get it out.

why ya taken off ya shock for?

[Brute]

Originally Posted by Buzztail

Got it back together and not I'm getting no fuel. I can pull the injector out and get a clean spray pattern, but with my finger in the back of the throttle body I get nothing from the injector. Pull it out and it's not consistently pulsing now

Injector? electrical?

Connections look good, new spark plug, good fuel pressure (though I don't have a pressure gauge that'll read that high) drop a little fuel in the TB and it fires right up- No fuel through the injector though. It there a way to test the electrical? Something like a noid light? I doubt my DVM would read quickly enough to see the pulsing.

Take the fuel hose off the injector , turn ignition on & see if you get a surge of fuel . If so block the hose with your thumb & turn ignition on again & see if it has pressure ( it should be very hard to stop it spraying ) keep your thumb on it a while to see if it holds pressure in the line.
Disclaimer ,,, if you set your bike or shed on fire don`t blame me ,

[LOZ]

Originally Posted by 690Emaf10

Thanks, I sprayed some WD40 on it before I left for work. I'll see what i can do with it when I get home.

if its anything like mine ....... ..cut it off..start looking on e-bay for a secondhand tank,when trying to get it out the nut in the plastic gouged a hole in the tank and i had to fit a new tank

£950

loz

[Buzztail]

Originally Posted by Brute

Take the fuel hose off the injector , turn ignition on & see if you get a surge of fuel . If so block the hose with your thumb & turn ignition on again & see if it has pressure ( it should be very hard to stop it spraying ) keep your thumb on it a while to see if it holds pressure in the line.
Disclaimer ,,, if you set your bike or shed on fire don`t blame me ,

Done, and done. I don't see it being a supply issue. I have the back flush fixture for the injector set up. I'll get on that this morning and see what happens.

[daveknievel]

Originally Posted by Mudguts

I had a look at my 500 exc they are closer 690 then hammerhead and cheaper then a 690 lever

I have a shifter on my 690 that is from my 05 450 SMR. Same thing. They only offer 4 different shifter for ktm's. And the hammerheads aren't out of stock. Tucker rocky has 5 in ILL, 9 in cailf. None in the PA . Warehouse.

[Buzztail]

Looks like the fuel volume is there, but the pressure is not all that great. Looks like I'm going back into the tank for round three

http://s2.photobucket.com/albums/y35...t=IMG_0345.mp4