Members who have donated towards server costs
Join Date: May 2006
Location: Tampa, Florida
I doubt that boring it 1 over would require new jetting. In fact, unless you have changed the air intake system, air filters, air box, etc., you shouldn't have to rejet.
If you do not get more air in, then you can not get more air out so mixture shouldn't be changed over stock.
I would pull the carbs and make sure that everything is in order. The diaphrams are both good, slides are free to move, all air & fuel passages are clear, and put in a set of new factory jets, of stock flow rating.
I would sync the carbs and set the idle mixture screws.
Having made sure the fuel system is right, another possibility is that your front coil has an issue and is not putting out correct spark. You could switch the coils and see if the problem follows the coil.
The hard start when hot is probably your battery. Really need a good MF AGM style battery with our electrical systems.
And yes, assume the dealer does nothing they say and you will do yourself a favor.
93VN750, under re-construction
vn750.com Member # 828
Rick's Stator and R/R
MF AGM Battery
Shaved & Jetted
MAC Tapered Staggered Pipes
Stainless Steel Brake Lines
23,XXX miles and holding pending gasket change (underway!!!)