So, I am the proud owner of an obscure small block, a V40 Targa. Made for the Japanese, Greek and maybe French markets ? It's a 1991 two valve head engine with a short stoke Monza piston I believe 74 x 45 stroke.
It's ready to get on the road but I'm having trouble with a hanging idle. Tried the usual things - cabling routing, choke sealing etc. Carbs are PHBH 28s, which typically are used on V50s and Monzas. Found the carb needle was a bit rough near the top of the shaft, so i polished it up, but it's still a little roughened. OK, maybe I should replace the needle ( and jet). That's where it gets interesting. The needle is an X24. Haven't checked jets yet. I do not have a manual for this precise model and on This Old Tractor I can only find manuals for V35 / V50 models, two and four valve. None of these use an X24 needle.
So my questions: does anyone have a manual for this thing, or at least has a V40 Targa and can confirm jetting ? I'm thinking maybe the jetting is to suit Japanese emission requirements or maybe the oddball engine just had oddball jetting. If I'm replacing needles & jets etc I'd like to be using the correct ones.
Not expecting to have much success with my query given the obscurity of the model, but it's worth a try.
Thanks in advance !