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Post by steve on Apr 28, 2015 20:58:48 GMT -5
Hey, guys and gals. Just joined. Been reading the board for info for a while, and some interesting stuff on here. I have a 50cc Jonway. I love it. Anyways, just ordered a BBK, and was wondering if I really needed to upgrade to the performance exhaust? It's pretty expensive(for me). I don't really need to go much faster than it does, just want to be able to pull hills without causing a traffic jam. I have installed about every other upgrade possible. Have it running well on a main jet. Starts easy, power is about maxed as it stands. I imagine I will probably go to at least a jet with a 50mm hole in there now. I don't want to throw it out of wack, but would like to avoid the new exhaust, if at all possible. At least for a week or 2, anyways. Thanks, ya'll, and glad to be here!
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Post by JerryScript on Apr 29, 2015 0:29:40 GMT -5
Welcome to the boards! You'll be fine with the stock exhaust. You can always drill a few holes in the end if you want to open it up a bit. I've kept the stock exhaust on my 50mm BBK, and have been happy with it for a year and a half. I did switch to a uni air filter, and use a main jet, needle clip lowered one notch to raise the needle a bit. Rather than an expensive performance exhaust, go to a muffler shop and see how much they would charge for a header with a larger inner diameter (ID). It's a short piece, and two welds (three if you have EGR), you might get it done cheap. Together with a drilled out exhaust, it would be better than a performance exhaust.
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Post by steve on Apr 29, 2015 6:18:05 GMT -5
Thanks! I do appreciate the response. I look forward to getting to know ya'll. If you have a scooter, you either have a good mechanic close by, whom you are on a first name basis with, or you have become a backyard warrior. I fit in the backyard warrior group. I have invented new swear words trying to figure out some of the problems with these things. Owning a scooter is a lifestyle, and I end up planning some sort of project every Saturday. I have also learned that being a car mechanic, and a scooter mechanic are two vastly different things. I am pretty excited about installing the BBK. I have decided to ditch that air box. I think I'm going to put on one of those cone filters that fit right on the carb. I am going to order a few different size jets. I figure that I won't go over a 105. Does that sound right? If I get a , , 100, and 105, one of those will do, right?
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Post by JerryScript on Apr 29, 2015 9:37:08 GMT -5
Yep, riding means wrenching, something I learned 40 years ago and is still true today! You shouldn't need to go above on the main jet. Do plug chops, once you get a nice coffee brown plug ceramic, you are good to go. Please let us know about your projects, we all like to toss ideas around here, the more the merrier! And remember, above all else, enjoy the ride!
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