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PD41A float height?

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MarkCR750:
Quick question, I read that PD41A carb float heights should be 12.5 mm, does anyone know if that’s correct, thanks Mark.

K2-K6:
I can only find the same as you've posted for the 41a.


The 42 is definitely 14.5 in manuals I have,  and in cross reference charts they show that correctly and the 41a at 12.5.

http://www.hondachopper.com/garage/carb_specs/carb_specs.html

A rough guide though for these flat base floats is that they generally sit parallel to the gasket face or they'd have to specify a point at which you should measure to spec.  So just holding them up when rested against needle should give some confirmation.

MarkCR750:
Thanks K2 K6, I’ve set them at 12.5mm, I’ll check the levels with a clear tube tomorrow then carbs back on and see how she goes.

MarkCR750:
Good news it’s running beautifully, no crackles and pops on the overrun, pulls smoothly through the range, the No1&4 plugs are tan centre dark grey outer, I’ll have a look at 2&3 when I can be bothered with the faf of taking them out but I expect them to be the same from the way it’s running, old pilots pulled out easily with just pliers, tapped new ones gently in with a flat face drift, old pilots were 35’s they were dirty and partially blocked, bright new 40’s fixed the lean bottom end, I very carefully set the floats to 12.5mm then attached a remote fuel tank with the carbs supported level on my BD workmate, I checked the actual levels using a clear plastic tube on the drains, 2,3,4 were fine with the level of fuel in the tube coinciding with the bowl gasket but No1 was about 5mm high so I readjusted the float height in No1 and got the actual level to match the other 3, I guess there may have been a slight bend in the float support arms but they all looked straight, anyway nice now, noticed the brakes weren’t as good as I remembered so bled them, left was fine but got air and dark fluid from the right, brakes are now very good again, all in all a good day in the garage! 🙂

K2-K6:
Nice work,  it's good to get through a plan to improve something with success at the end of it.

I suppose most of these age carbs sitting for so many years are going to have some sort of impairment of idle circuits at least.

Out of interest, is it your set up that you are running std bellmouths inside the filter pods?

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