2017 Kim 350sxf fuel issue

mxfolife732
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mxfolife732
Edited Date/Time 6/30/2020 8:59am
Bike would start and run fine but would just shut down. It would start right back up but then shut off. Rode it the other day for ten minutes and shut off but won’t start now. Changed small tube filter. Pump seems to be kicking on and pressuring the lines up. Whenever I break tbat connection it sprays gas out. Anybody have any idea if it could be the pump or the filter in the tank? Fi light lights up when trying to start then shuts off.
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Paw Paw
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Paw Paw 6/27/2020 6:58pm
6/27/2020 6:58pm
Dirty Fuel filter on pump and in fuel pump are most likely causes. It could also be a crimped fuel line at the pump.

Paw Paw
mxfolife732
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mxfolife732 6/27/2020 7:38pm
6/27/2020 7:38pm
Thanks! The tank filter is a grey to black color so was thinking it may be plugged. The hose on this filter is definitely crimped on both sides. Might start with a new filter
soggy
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soggy 6/28/2020 11:53am
6/28/2020 11:53am
Faulty relay has caused similar problems as well I believe if fuel filter doesn't fix it. I would start with inline fuel filter first.
Huskyboy95
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Huskyboy95 6/28/2020 6:04pm
6/28/2020 6:04pm
I had the same exact problem, and I got a quantum fuel pump from Slavens racing, and a filter kit put it in the bike in the bike still would not start. It was a 2017 350. If the fuel pump and filter don’t fix it get a leak down tester. I thought it was something simple, but the top end of the engine seized, due to faulty oil pump drive gear, not trying to bum you out, but it does happen on these 350s. Just trying to help you
Diagnose.
Slavens racing also sells a fuel pressure gauge that you can check your fuel pressure with on that bike it should be 48 to 52 psi approximately if the fuel pump is good! If you have low fuel pressure the fuel
Pump is starting to go out.

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Huskyboy95
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Huskyboy95 6/28/2020 6:12pm
6/28/2020 6:12pm
Huskyboy95 wrote:
I had the same exact problem, and I got a quantum fuel pump from Slavens racing, and a filter kit put it in the bike in...
I had the same exact problem, and I got a quantum fuel pump from Slavens racing, and a filter kit put it in the bike in the bike still would not start. It was a 2017 350. If the fuel pump and filter don’t fix it get a leak down tester. I thought it was something simple, but the top end of the engine seized, due to faulty oil pump drive gear, not trying to bum you out, but it does happen on these 350s. Just trying to help you
Diagnose.
Slavens racing also sells a fuel pressure gauge that you can check your fuel pressure with on that bike it should be 48 to 52 psi approximately if the fuel pump is good! If you have low fuel pressure the fuel
Pump is starting to go out.

mxfolife732
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mxfolife732 6/28/2020 6:55pm
6/28/2020 6:55pm
Appreciate the info! Going to get the fuel pump pressure tool this week and go from there. I’d be pretty upset seeing as the bike only has 30 hours. Disappointed in this being my first ktm
mxfolife732
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mxfolife732 6/29/2020 4:48am
6/29/2020 4:48am
I thought I saw something about kinked hoses. Mine are definitely kinked. Would I need to take this to a dealer for the recall or contact ktm directly do you know?
soggy
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soggy 6/29/2020 8:11am
6/29/2020 8:11am
Should be able to tell if oil pump is working pretty easily. Oil should lower in the sight glass when you start it. If it doesn't your oil pump isn't working.
Huskyboy95
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Huskyboy95 6/29/2020 8:37am
6/29/2020 8:37am
At 30 hours, you consider doing a valve check and adjust, if the valve isn’t closing your bike is not gonna want to start. If you have not done one by now. They May need to be shimmed, to get them within specs.
And if you remove the valve cover you’ll be able to inspect the top end, to make sure it’s getting oil and doesn’t look burnt
VonShofstall
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VonShofstall 6/29/2020 10:27am
6/29/2020 10:27am
Rick Amatuzio wrote:
They had a recall on kinked pump hoses
Mine quit at the 3 hour mark. Kinked fuel line in the tank. Dealer warrantied for me...
mxfolife732
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mxfolife732 6/30/2020 8:59am
6/30/2020 8:59am
Good deal! Have a new pump coming, going to start there

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