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Float height 500 k1
deltarider:
--- Quote from: Honda enthusiast on April 29, 2024, 08:04:33 PM ---Just thought I'd ask my floats are at 22mm and it's running very rich, I have Hendler carb kits on the way as I suspect a wire has been used to clear the jets....can anyone please confirm the float height...
--- End quote ---
You may want to double check your measurement first, by applying this method: http://forums.sohc4.net/index.php/topic,185754.msg2151647.html#msg2151647
I measured 50ml exactly but I wouldn't worry if you measure 2ml more or less.
Honda enthusiast:
--- Quote from: deltarider on April 30, 2024, 08:20:49 AM ---
--- Quote from: Honda enthusiast on April 29, 2024, 08:04:33 PM ---Just thought I'd ask my floats are at 22mm and it's running very rich, I have Hendler carb kits on the way as I suspect a wire has been used to clear the jets....can anyone please confirm the float height...
--- End quote ---
You may want to double check your measurement first, by applying this method: http://forums.sohc4.net/index.php/topic,185754.msg2151647.html#msg2151647
I measured 50ml exactly but I wouldn't worry if you measure 2ml more or less.
--- End quote ---
Thanks that's a good way of checking, I'll try that later....just at the moment I'm rebuilding the carbs after a strip and clean...all the original brassware is in there but someone has been in there before to take the slides and needles out.
I'm going with what I understand is correct for the US K1 at 22mm float height and needle at notch four of five from the top....if anyone thinks differently please say so....thanks
I found the mixture screws were set at one turn out and float height was 26mm , presumably to compensate
McCabe-Thiele (Ted):
On factory air filter arrangement I believe the middle needle position is correct.
Robert W:
1. Float height is the manual is 22mm. But this is just a guide. The tang on the floats when new are tangential to the pivot pin. However after mangling them several times, you may notice that they are no longer tangent. So feel free to adjust the float height to 23 or 24 mm. That little offset is magnified by the ratios of tang to pivot and float height to pivot. As long as your covering the jets it should be fine. Measurement of the amount of fuel in the bowl is a pain and not easily done unless you use a drain screw modified with a clear tube to view the fuel height.
2. If your having trouble with the overflows barfing out fuel, one thing for sure is the needle valve springs over time become unequally compressed and less resistant giving you all kinds of different measurements. I suggest buying new needle valve sets. You will notice the difference immediately when you set the carbs on the bench. The floats will touch the needle valves and not compress the springs at all. Also these stock Keihin carbs use a lot of o-rings which over time will not seal. Especially the o-ring on the needle valve seat. If this one is bad, your carbs will eventually overflow. These needle valves are brass on brass. Some are rubber on brass. So there is no substitute for a good spring in the needle valve.
Nurse Julie:
22mm Hubert. If the carbs are clean, float valves seating correctly, no pitting in float valve seats, float pivots free and moving, then 22mm measured at the correct place stops any leaks.
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