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September 20th, 2015, 02:51 PM   #11
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I Ride: Husaberg FE570S and Buell S3
Some guys in the off-road 4x4 world advocate atomizing some Sea Foam right into the intake while the bike is running to clean out the intake and combustion chamber.
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September 20th, 2015, 11:52 PM   #12
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Originally Posted by jroble View Post
Thanks Jon. I decided to go with a conventional battery because of the sort of problem I'm dealing with. On my 2015 KTM 450SXF-FE (lithium battery) I hit the starter button for just a moment, and wait for the FI sounds to stop, and then I hit the starter and it starts right up. I need to wire in a switch to the headlight on the 570, so I can turn it off when starting the bike, which I'm thinking might result in a bit more electric power to the starter. I also haven't tried changing the fuel filter, and I'm wondering if it might have the old style that tended to flow fuel at a low rate. Could that cause it to be lean when the throttle is off (when starting) and then when the throttle is open (when riding) the fuel is forced through the filter? Thanks all!
My experience was the other way around. It could idle but it struggled on gas, until it started to backfire and then died. You have constant pressure behind the filter so giving more gas doesn't push more through. At low revs the injector filter let enough fuel through but when the injector opens up more the mixture become leaner and leaner as the filter restricts the flow. Then on top of that the filter mesh swells from the engine heat, restricting it more and more the warmer the engine gets.

If what you say is true then your bike would die as soon as you let it idle.

A simple stupid question; you are not giving it any gas when you try to start it are you? If you give throttle when starting the ECU cuts the fuel.
As you have 3 70-degree bikes I highly doubt that you do :P
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