Jetting stock carb, need help please
Posted: Sun Mar 30, 2014 9:35 pm
I have a de-restricted Elite 50, 2001. You can read about what I have done in the "Best Bang for the Buck" threads.
But it is a stock bike with the air box mod, an 85 main jet and a Keli variator. I just guessed at the main jet size based on my reading here.
I got a good deal on a Technigas exhaust and thought it would look good and maybe sound cool and ad a little performance. It does look cool !
I found that the exhaust isn't much louder than stock, but sounds kinda raspier. Went for a test ride and founf very little in performance gain maybe a little lost midrange and gained a little top end.
But I got back from a 5 mile ride and checked the temp gauge.
I was watching the gauge and kept the temps mostly in the 380 range for most of the ride. I know that is still too hot! Will a fairly quiet pipe that doesn't run much different than a stocker cause that much increase in head temps?
I guess my first idea was to question the accuracy of the temp gauge. I could put the stock pipe back on and check everything again. But I'll bet that would be a wasted exercise. Assuming that the gauge is correct, what main jet should I try? I think an 85 is already larger than a stock 50 Elite. But I think the Big Bore guys are with bigger carbs are only running something like 105 to 115 mains. Should I try a 90 or a 95? That seems like a big jump for a stock motor and carb, but I know there are people here who know much more about this than I do.
And any help will be much appreciated !!
Alex
But it is a stock bike with the air box mod, an 85 main jet and a Keli variator. I just guessed at the main jet size based on my reading here.
I got a good deal on a Technigas exhaust and thought it would look good and maybe sound cool and ad a little performance. It does look cool !
I found that the exhaust isn't much louder than stock, but sounds kinda raspier. Went for a test ride and founf very little in performance gain maybe a little lost midrange and gained a little top end.
But I got back from a 5 mile ride and checked the temp gauge.
I was watching the gauge and kept the temps mostly in the 380 range for most of the ride. I know that is still too hot! Will a fairly quiet pipe that doesn't run much different than a stocker cause that much increase in head temps?
I guess my first idea was to question the accuracy of the temp gauge. I could put the stock pipe back on and check everything again. But I'll bet that would be a wasted exercise. Assuming that the gauge is correct, what main jet should I try? I think an 85 is already larger than a stock 50 Elite. But I think the Big Bore guys are with bigger carbs are only running something like 105 to 115 mains. Should I try a 90 or a 95? That seems like a big jump for a stock motor and carb, but I know there are people here who know much more about this than I do.
And any help will be much appreciated !!
Alex
