john.bebb wrote:Hi Peoples, - the comments string seems convinced the issue is fuel flow - so a few thoughts; - whilst faffing around with the "plumbing"
1/ Have you checked that the tank is able to breathe? - I have not had the problem specifically on my Square; - but I recall a Tiger Cub from longtime past which would run perfect for ages... then cough & choke until I took the filler cap off - then back to perfect...
It doesn't matter how clear the tap & fuel lines may seem - if air can't get in too well then likewise the fuel don't come out so good!
2/ Have you had the fuel tap out of the tank? - some of these are fitted with a mesh filter which cannot be observed whilst the tap is fitted... maybes worth a check.
3/ Fully support the filter in the (clear) fuel line ideas - the bottom of the "U" in the tube should be below the float bowl lowest point.
4/ Water in the fuel? water globules can cause havoc in float bowls - fond memories of Beemer's Bing CV with the QD sprung wire clip, also certain Amals with a screwed side plate - however, not so QD on a Square's Solex (I run my Sq. with an Amal 626).
5/ Assuming it is original - your tank is over 60 yrs old - surely some corrosion on the inside - so when was last flushed?
(If it is a "made in India" copy - then a/ heaven knows what is inside, & b/ congratulations on getting it to fit!).
Users browsing this forum: No registered users and 6 guests