Polini Big Bore bogging after half throttle

[billsykills]

96 Honda Elite SA 50

I have installed a Pollini Corsa 72ccBig Bore Kit with stock carb and stock exhaust, stock air filter and a high speed pulley. I installed the larger jet that came with the kit, but I do not know the size of the jet.

When I run the throttle, the scoot runs fine up to about half throttle, but once it goes past half throttle, it is bogging down, but not cutting out. It just about runs at top speed just beyond half throttle. I am running at about 250 degrees most of the time, which I have been told is cold. I have done a plug chop and the plug looks good.

Am I running cold at 250? Does it seem like I am running rich above half throttle? What do you guys think about a smaller jet?

I appreciate the input.

[Kenny_McCormic]

Rich, smaller top end jet.

[PimpinSpree]

ya, i think that jet would be for if you had an aftermarket exhaust and air filter

[cf_z]

im pretty sure the jet that comes with that kit does not fit the stock carb.

[filthyfingers]

the jet that comes with the corsa is for japan carbs only. to get the most out of your corsa try a bigger carb, aftermarket air filter, and aftermarket exhaust, oh and new gears! after that, all you'll be hearing is baaaap bap baaaaaaaaaappp! haha ride safe

[fastgtp99]

mine did the same thing. but once you open up the restriction on the air box and tune the air to fuel right it should be good. It also helps if you dont have a pipe to cut it in half like i did and cut the guts out of the back half of it. louder but more performance.

[maddog]

You can run that bore kit with the stock exhaust & air filter derestricted but you need to change the gear ratio and run a larger carb for that bore kit to work or you can go with a cheap 66cc pg kit .