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cdziekan Added a reply to kx250f misfires after wash
3/30/2021 7:35am True, we believe this is possibly the same issue but we took it back to the mechanic who sold it to us and he said it was the rtv silicone in the sparkplug hole that we put in there to prevent a oil leak grounding out the spark, so he removed all the rtv and it started running normal (that's...
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cdziekan Added a reply to KX250f spark issue after wash
3/30/2021 7:06am We did this to almost every connection we could easily get to, but we didn't grease them. Also tried other things like disconnecting the kill switch incase it was wet and made sure the airbox was dry. nothing worked 
cdziekan Added a reply to kx250f misfires after wash
3/30/2021 6:57am Thanks for all the reply’s , I disconnected the kill switch and I thought it fixed the problem for a second then it went back to misfiring, and the air filter is dry along with the air box. And i really doubt it could be the tps
cdziekan Started a new thread KX250f spark issue after wash
3/30/2021 12:58am my 2011 KX250f misfires like crazy after washing it, definitely an spark/electrical issue. I didn’t power wash it, Plugged the exhaust too. And i’ve already cleaned/ blew out most electrical connections with air. Bike ran perfectly at the track earlier. Here’s a video of how it runs, it smokes a ton too which you cant see really in the video...
This forum thread has 4 replies.
cdziekan Started a new thread kx250f misfires after wash
3/30/2021 12:57am my 2011 KX250f misfires like crazy after washing it, definitely an spark/electrical issue. I didn’t power wash it, Plugged the exhaust too. And i’ve already cleaned/ blew out most electrical connections with air. Bike ran perfectly at the track earlier. Here’s a video of how it runs, it smokes a ton too which you cant see really in the video...
This forum thread has 17 replies.
cdziekan Added a reply to Mystery problem kx250f
3/20/2021 11:00pm Turns out it was the throttle cables being loose and the RTV in the spark plug hole grounding out the spark or some shit
cdziekan Added a reply to Mystery problem kx250f
3/11/2021 7:02pm Brand new valves and springs with a new top end
cdziekan Added a reply to Mystery problem kx250f
3/11/2021 7:00pm Yeah we’re planning on taking it to him very soon
cdziekan Added a reply to 2011 KX250f help!!!
3/11/2021 2:31pm stator looks good. it has to be a fuel issue.
cdziekan Started a new thread 2011 KX250f help!!!
3/10/2021 5:54pm Hi everyone, very recently I had a very weird problem with my 2011 kx250f which I covered in this post: https://thumpertalk.com/forums/topic/1364770-2011-kx250f-fuel-problem/ TLDR of that post: Bike ran amazing, Wanted to fix easy oil leak, took off fuel tank completely, took off valve cover and nothing else, added sealant to o ring right below valve cover to prevent oil leak from...
This forum thread has 2 replies.
cdziekan Started a new thread Mystery problem kx250f
3/10/2021 5:53pm Hi everyone, very recently I had a very weird problem with my 2011 kx250f which I covered in this post: https://thumpertalk.com/forums/topic/1364770-2011-kx250f-fuel-problem/ TLDR of that post: Bike ran amazing, Wanted to fix easy oil leak, took off fuel tank completely, took off valve cover and nothing else, added sealant to o ring right below valve cover to prevent oil leak from...
This forum thread has 7 replies.
cdziekan Added a reply to KX250f Mystery problem
3/10/2021 4:34pm Okay so I believe I found the problem but the bike is still not acting right, The two throttle cables leading down to the fuel injector were very loose (i noticed this days ago but i thought it was a adjustment and not to mess with it) When I tightened it up the bike runs perfectly but for about 30...
cdziekan Added a reply to KX250f Mystery problem
3/8/2021 2:00pm It sure could be a stator/eletrical problem. I did wash the bike before hand but i dried it off and started it up for 5 mins and she ran fine. so i don’t think i fried anything. I have a 01 kx125. do you think i could swap on the regulator/rectifier of that to the 250 and try it out?
cdziekan Added a reply to KX250f Mystery problem
3/8/2021 1:57pm I don’t think so unfortunately
cdziekan Added a reply to KX250f Mystery problem
3/6/2021 6:01pm Its Efi. It’s not burning coolant nor oil, compression is amazing, top end has maybe 5 hours on it. air filters brand new. timing is good too
cdziekan Added a reply to KX250f Mystery problem
3/6/2021 5:59pm I replaced the spark plug and no diffrent
even sprayed the spark plug hole with carb cleaner. I’m so stuck no clue what it is
even sprayed the spark plug hole with carb cleaner. I’m so stuck no clue what it is
cdziekan Started a new thread KX250f Mystery problem
3/3/2021 9:43pm Hi I recently bought a really really clean 2011 kx250f that was completely rebuilt by a mechanic. I took her to the track and it ran absolutely perfect and sounds awesome, but we had the common oil leak problem from the sparkplug weep hole on the right side of the cylinder so we took off the valve cover and put...
This forum thread has 12 replies.