Hi Derek, If the hesitation is around the 2000rpm mark it could be running a bit lean at the bottom end of the main jet cycle in which case a larger main and a larger air jet may cure it. If the hesitation is below 2000 then a larger idle jet may cure it. As Jim says it could also be the accelerator side of things. Have a look at the accelerator diaphragm and check that the cam that operates it is ok, they tend to be reliable but you never know. It could also need a larger pump jet.
On the primary side have a look at what idle, main, air corr and emulsion tube (F30 is the best for almost all cars) are fitted. Also have a look at what pump jet you are running. There are some suggested setting on the Quantum Owners website. Hope this helps Steve http://brabazon.org/Quantum.aspx -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to quantumowners@googlegroups.com To unsubscribe from this group, send email to quantumowners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).
