I fly a 582 Blue head. Just had the carbs apart last night for all new rubbers / needles / new main jet. I set the mixture screw to two turns out. To set the idle RPM. I was told to use a 7mm drill bit (google this and you'll see what I mean), then balance them, ensure both throttles open together. After running the engine today, it's more 7.2mm ish for mine. Idle seems to be around 1900/2000. There's two rubber blanks on the left side of each carb. Make sure they're not cracked and leaking. Also, check your ignition leads aren't chaffed and possible leaking spark.
Good luck getting it fixed. Aviation can be frustrating. 😂 Trying to get the flying triangle of wind, visibility and plane serviceability to line up. There's always one thing missing! I think this one is the worst though when the plane doesn't function on a day of perfect conditions!
I would for sure fix the primer, and if that doesn't solve it, pull the idle jets out of the carb and clean them. They have very small holes in them, and can plug easily with a bit of dirt. Actually, I was thinking idle jets until you mentioned the primer leaking. If you drop the float bowls, you should be able to unscrew the idle jets without taking the carbs off.
@@RobHolmes8 In a way, it's nice to do one thing at a time. It can be a learning experience when you find exactly what the cause was. Also, sometimes much less work.
I have the same problem with my 503 on my Himax.. but sometimes its good.. sometimes its running fine on 2200ish RPM and sometimes it runs smooth only above 3000. Cant figure it what is it, I will try to clean my carburetor and put in new jets. Hope it will help.
Thanks Peti 🙌 I've fixed the flooding issue by removing the leaky primer now. Which has got it back to where it was before. But I have carb rebuild kits on order and am going to completely clean and rebuild them, as it's still not as smooth as I'd like below 3000 rpm. 🤞
Those primers are notorius for leaking. Engine will run rough as it is to rich. In the field once i bent the red primer line like you would to shut off your garden hose and zip tied it to keep it closed. The restarted engine and it ran normal. When i reinstalled new primer i put small shutoff valve between primer and engine so if it happened again and it did i could shut it off even why airborn.
That confirms what I was thinking too, thank you, it's great to hear I could be on the right track 🙌 That's a great idea with the shutoff valve, might just do that 👍 there is a choke on mine too, so I may just remove the primer for now 🤔
Just started my 582, ran really rough, so I took both carbs apart and cleaned them, still ran a little rough but not as bad...and now I noticed some bubbles moving down the primer line while running...I bet you just solved my problem bud, thank you, I'll check that out asap.
It audibly sounds like carb ice, you have carb heat on that bird? (The weather also looks about right for carb icing on ground). Rough running when at idle or low RPM suggests it might be running too lean perhaps caused by that fuel leak.
Thanks for the comment 🙌 No carb heat on this one. My current thinking is that it's running rich, as the engine inlet is getting gravity fed fuel from the leaky primer.
I've fixed the main issue which was removing the leaky primer, making the engine run rich. I also replaced the spark plugs. Then it returned to running as it used to. My carbs are out right now as I'm going to give them a thorough clean and rebuild. Just waiting for the rebuild kits to arrive. Hope you get your issue sorted too 🙌
@@roma_aviator awesome! I'm glad you got it fixed too. I have rebuilt my carbs now and it runs really nice now, better than I thought a 2 stroke could 😁🎉
Hey, question when twisting the throttle lever, what does that actually do? I'm not a pilot by any means only play flight sims but it really don't know what it does
It's a "vernier throttle" which acts just like a normal throttle when pushed in and out, but twisting will adjust the throttle in fine increments. I really like them as it gives more precision 👍
@@0xKingSlayer the Kitfox is a type on the LAA register in the UK. Which you can fly on any PPL, but there are also a few early mk 1 and 2 Kitfoxes that can be classed as a microlight, which means you could get a NPPL microlight licence.
Floats are in good condition and seem to be moving freely. I'm going to take the carbs off and give them a good check and clean. Thanks for your comment 🙌
Do you run it on E10 Rob, or E5 or maybe Avgas. E10 is very corrosive and will disolve fuel lines, gaskets, tank linings floats if they havent been changed out to be ethanol resistant ones. E5 should be ok as its only 2-3% ethanol. I have literally seen people with £60k worth of foxbats at out airfield grumbling over the cost of E5 and using E10, then complaining about their floats disolving, but still sticking with E10. 🤷♂ It does cause issues with your fuel system though is the main point. Best of luck.
Thanks Bob. I run UL91 which has no Ethanol content, as I'm worried about exactly that. I've used Avgas a few times since then too when the airfield was out of UL91. But so far since I've owned it, never Mogas 👍
@@RobHolmes8 my dad has the same problem with his Kitfox 4 with a 912 ul Rotax engine and everything was rich so he clean out the carb and now it running smoothly
Hi Rob, thanks for sharing, I had a similar issue which turned out to be one cylinder running rich, long story short , fix it by carb ballance and needle circlip moved one notch on lean carb (higher egt), heres a video of the test flight post adjustment, I'd be interested to see what egt and water temps your 582 runs at. ua-cam.com/video/dXVJglxnQFE/v-deo.html
I love the way it sounds, you don’t need to apologize
Glad you noticed the problem on the ground and not in the air and have an engine out. :)
Me too 😅
I fly a 582 Blue head. Just had the carbs apart last night for all new rubbers / needles / new main jet. I set the mixture screw to two turns out. To set the idle RPM. I was told to use a 7mm drill bit (google this and you'll see what I mean), then balance them, ensure both throttles open together. After running the engine today, it's more 7.2mm ish for mine. Idle seems to be around 1900/2000. There's two rubber blanks on the left side of each carb. Make sure they're not cracked and leaking. Also, check your ignition leads aren't chaffed and possible leaking spark.
Thank you 🙌 I'll give the 7mm drill bit a go, as I'd like to get the idle slightly faster anyway. The other things I'll check too 👍
@@RobHolmes8 Hi Rob, Did you solve this? Looking forward to hearing the fix! Always learning! Thanks.
Good luck getting it fixed. Aviation can be frustrating. 😂 Trying to get the flying triangle of wind, visibility and plane serviceability to line up. There's always one thing missing! I think this one is the worst though when the plane doesn't function on a day of perfect conditions!
It sounds like a blocked pilot jet in one of the carbs.
Once off the pilot circuit it appears to be working ok.
Thanks Skelly, I'm going to give everything a proper clean. Good shout on the pilot/idle jet 👍
I would for sure fix the primer, and if that doesn't solve it, pull the idle jets out of the carb and clean them. They have very small holes in them, and can plug easily with a bit of dirt. Actually, I was thinking idle jets until you mentioned the primer leaking. If you drop the float bowls, you should be able to unscrew the idle jets without taking the carbs off.
Thanks Jim 🙌 I'm going to remove the primer for now, take the carbs off and give them a full clean to be sure too 👍
@@RobHolmes8 In a way, it's nice to do one thing at a time. It can be a learning experience when you find exactly what the cause was. Also, sometimes much less work.
@@jimchuk8511 that's a good point 👍 I'll start with removing the primer and see how I get on. Thank you.
I have the same problem with my 503 on my Himax.. but sometimes its good.. sometimes its running fine on 2200ish RPM and sometimes it runs smooth only above 3000. Cant figure it what is it, I will try to clean my carburetor and put in new jets. Hope it will help.
Thanks Peti 🙌 I've fixed the flooding issue by removing the leaky primer now. Which has got it back to where it was before. But I have carb rebuild kits on order and am going to completely clean and rebuild them, as it's still not as smooth as I'd like below 3000 rpm. 🤞
Those primers are notorius for leaking. Engine will run rough as it is to rich. In the field once i bent the red primer line like you would to shut off your garden hose and zip tied it to keep it closed. The restarted engine and it ran normal. When i reinstalled new primer i put small shutoff valve between primer and engine so if it happened again and it did i could shut it off even why airborn.
That confirms what I was thinking too, thank you, it's great to hear I could be on the right track 🙌
That's a great idea with the shutoff valve, might just do that 👍 there is a choke on mine too, so I may just remove the primer for now 🤔
Just started my 582, ran really rough, so I took both carbs apart and cleaned them, still ran a little rough but not as bad...and now I noticed some bubbles moving down the primer line while running...I bet you just solved my problem bud, thank you, I'll check that out asap.
It audibly sounds like carb ice, you have carb heat on that bird? (The weather also looks about right for carb icing on ground). Rough running when at idle or low RPM suggests it might be running too lean perhaps caused by that fuel leak.
Thanks for the comment 🙌 No carb heat on this one. My current thinking is that it's running rich, as the engine inlet is getting gravity fed fuel from the leaky primer.
@@RobHolmes8
Did you solve this problem dude? I have the same problem with my r582 and I can't find solution already three month.
I've fixed the main issue which was removing the leaky primer, making the engine run rich. I also replaced the spark plugs. Then it returned to running as it used to.
My carbs are out right now as I'm going to give them a thorough clean and rebuild. Just waiting for the rebuild kits to arrive.
Hope you get your issue sorted too 🙌
@@RobHolmes8 thanks a lot bro for you answer. 🙏 I saw bubble movement into my primer tube too.
@@RobHolmes8 I've solved this problem on my 582. this was leaky primer too :) and my kitfox ready to fly. thanks a lot
@@roma_aviator awesome! I'm glad you got it fixed too. I have rebuilt my carbs now and it runs really nice now, better than I thought a 2 stroke could 😁🎉
Hey, question when twisting the throttle lever, what does that actually do? I'm not a pilot by any means only play flight sims but it really don't know what it does
It's a "vernier throttle" which acts just like a normal throttle when pushed in and out, but twisting will adjust the throttle in fine increments. I really like them as it gives more precision 👍
@@RobHolmes8 Thanks for the quick response and the explanation Rob is the kitfox covered under the LAA licence as I was thinking for taking lessons
@@0xKingSlayer the Kitfox is a type on the LAA register in the UK. Which you can fly on any PPL, but there are also a few early mk 1 and 2 Kitfoxes that can be classed as a microlight, which means you could get a NPPL microlight licence.
@@RobHolmes8 that's great thank you
@@0xKingSlayer Hi Alpha, why not try Microlighting. It's still not cheap but is the most affordable way into aviation.
check float levels. Check float condition.
Floats are in good condition and seem to be moving freely. I'm going to take the carbs off and give them a good check and clean. Thanks for your comment 🙌
@@RobHolmes8 Weigh the carb floats. There was a recall on them for sinking issues.
@@skyrangerswift2ireland thank you. I visually checked them and they looked good, but I'll check the weight too 👍
Anything new on your engine?
Hey Monty, I've made an update video for you: ua-cam.com/video/BhT8vdEXXvk/v-deo.html
Do you run it on E10 Rob, or E5 or maybe Avgas. E10 is very corrosive and will disolve fuel lines, gaskets, tank linings floats if they havent been changed out to be ethanol resistant ones. E5 should be ok as its only 2-3% ethanol. I have literally seen people with £60k worth of foxbats at out airfield grumbling over the cost of E5 and using E10, then complaining about their floats disolving, but still sticking with E10. 🤷♂ It does cause issues with your fuel system though is the main point. Best of luck.
Thanks Bob. I run UL91 which has no Ethanol content, as I'm worried about exactly that. I've used Avgas a few times since then too when the airfield was out of UL91. But so far since I've owned it, never Mogas 👍
I think it could be your carburetors
I think you're right, and with the spark plugs being quite wet when I changed them, I think it's running rich.
@@RobHolmes8 my dad has the same problem with his Kitfox 4 with a 912 ul Rotax engine and everything was rich so he clean out the carb and now it running smoothly
Thanks @@stevenarcher5149 I've added a full carb clean to my list 🙌
Stator problem.
Hi Rob, thanks for sharing, I had a similar issue which turned out to be one cylinder running rich, long story short , fix it by carb ballance and needle circlip moved one notch on lean carb (higher egt), heres a video of the test flight post adjustment, I'd be interested to see what egt and water temps your 582 runs at. ua-cam.com/video/dXVJglxnQFE/v-deo.html
I've made an update video for everyone here: ua-cam.com/video/BhT8vdEXXvk/v-deo.html