KTM 350SXF coolant overflowing

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Edited Date/Time 9/16/2015 7:39pm
Has anyone experienced this? I don't trail ride,only MX, so I shouldn't be over heating due to low air flow. Thinking about trying a cv4 higher pressure rad cap, water wetter and one of these kits. ....thoughts?

http://slavensracing.com/shop/hi-flow-water-pump-kit-for-ktm-husaberg-350-by-splitstream/
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markit
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markit 10/20/2014 11:39pm
10/20/2014 11:39pm
Check your plug likely running lean fi or carb?
Paw Paw 271
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Paw Paw 271 10/21/2014 6:21am
10/21/2014 6:21am
You did not state which year you bike is. The 2014 is lean, but all previous were on the rich side.
Try the high pressure cap.

Paw Paw
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machine 10/21/2014 3:03pm
10/21/2014 3:03pm
Paw Paw 271 wrote:
You did not state which year you bike is. The 2014 is lean, but all previous were on the rich side. Try the high pressure cap...
You did not state which year you bike is. The 2014 is lean, but all previous were on the rich side.
Try the high pressure cap.

Paw Paw
2012 with the 365 kit on it.
Paw Paw 271
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Paw Paw 271 10/21/2014 4:20pm
10/21/2014 4:20pm
You should be ok with just the higher pressure radiator cap.
I would however do a plug chop test and get a good plug reading due to the big bore kit installed. It could need a bit richer mixture.

Paw Paw

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Crush
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Crush 10/21/2014 8:20pm
10/21/2014 8:20pm
Did you remap... the 365 kits were meant to be...
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machine 10/23/2014 10:55am
10/23/2014 10:55am
Paw Paw 271 wrote:
You should be ok with just the higher pressure radiator cap. I would however do a plug chop test and get a good plug reading due...
You should be ok with just the higher pressure radiator cap.
I would however do a plug chop test and get a good plug reading due to the big bore kit installed. It could need a bit richer mixture.

Paw Paw
Ok thanks
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machine 10/23/2014 10:56am
10/23/2014 10:56am
Crush wrote:
Did you remap... the 365 kits were meant to be...
No the 11-12 are supposed to be rich enough even with the 365 kit.
cbuth387
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cbuth387 8/27/2015 6:11pm
8/27/2015 6:11pm
Did you ever figure out a solution to this problem. I actually just did the 365 kit on my 2012 ktm 350 and same issue with overheating. I did have it remapped by a professional and it still seems to be overheating a bit
Crush
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Crush 8/27/2015 7:12pm
8/27/2015 7:12pm
Could add a Boyesen supercooler and change hoses? Shouldn't need a hi-pressure cap, the KTM unit is already 1.8 I think.
cbuth387
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cbuth387 8/27/2015 7:24pm
8/27/2015 7:24pm
Yea I was skeptical on the 2.0 radiator cap because it does already have a 1.8 which is high. It would be nice if that was all I needed. I do already have the hose kit and run Evans coolant. Im prolly gunna end up getting the high flow kit. Thanks
Donk122
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Donk122 8/30/2015 4:39pm
8/30/2015 4:39pm
Could just need a new cap. But id try the 2.0 cap. If youre losing evans its probably just the cap. its the cheapest and easiest to try first.
lumpy790
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lumpy790 9/16/2015 7:39pm
9/16/2015 7:39pm
What model 350? Is it a thermostat model? Thermostat has a hose the bypasses the radiator.

KTM's are nutorious for bad caps. We offer a KTM 2.0 cap for $21.95



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