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Post by devo344a on Jul 27, 2013 16:01:34 GMT -5
I didnt drill mine I ground the weld off the exaust tip end and it came off like a cap I then cut the muffler off leaving about 8in where the pipe comes into the muffler I drilled 3--3/16 holes I then ground around the muffler where I cut it off and then welded the cap back on it worked great alot more take off power and better top end
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Post by prodigit on Jul 27, 2013 16:34:23 GMT -5
gitsum: Unless you can explain what's so wrong about my theories I would suggest you to:  Popping on decel is normal. It's not catastrophic; just as long as the bike is not bogging down because of running too lean.
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Post by JR on Jul 27, 2013 18:04:38 GMT -5
Gitsum, disagree all you want but do not call other peoples ideas garbage here. It will get you banned.
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Post by jerseyboy on Jul 27, 2013 20:19:57 GMT -5
Read,read,read,and read some more,,dont take everything you read here as Gospel,,you have to take ideas from everybody and try things...some things might work for some and not for others,,basicly if the bike is running good,,taking fuel without popping to much on decel,,plug looks decent,,and you can wipe a little amount of carbon out of the can after some riding,,leave it alone... -p
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Post by gitsum on Jul 28, 2013 11:14:21 GMT -5
Gitsum, disagree all you want but do not call other peoples ideas garbage here. It will get you banned. I understand what freedom of speech is, and everyone is allowed to have an opinion. So whenever I see prodigit post something that is totally wrong, I call him out on it. I think calling some of the stuff he posts "garbage" is being pretty conservative considering the content. Prodigit continues to post information that is incorrect and misleading. It hurts the forum, because it is supposed to be a place to exchange information, learn, and help people with problems. People like him bring down the quality of this community. If you want to make me out as a troublemaker and ban me, than so be it, but that's not what my intentions are. |
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Post by gitsum on Jul 28, 2013 11:39:18 GMT -5
gitsum: Unless you can explain what's so wrong about my theories I would suggest you to: Popping on decel is normal. It's not catastrophic; just as long as the bike is not bogging down because of running too lean. You explained it all yourself, my theories. Even though in your mind they are sound, they are not reality. Popping on deceleration is not normal! It may be somewhat common because a lot of people try and tune their machines by using intake and exhaust mods to increase performance. It might happen on a lot of Chinese made machines. But make no mistake about it, it is running too lean. This means the machine is not tuned correctly. Most carburetors have three tuning "bands". It requires some experience, skill, common sense, and trial and error to get it all right. That's why they say carb tuning is more of an "art". When you "get it right", your machine will start with the smallest stab of the starter button every time hot or cold. After the engine warms up just a little bit, it will pull smoothly at all speeds and all throttle settings without a single glitch. An engine with a properly tuned carb should feel every bit as smooth as a fuel injected engine (barring extremes changes in elevation). So if you want to run your machines with popping on deceleration and using a manual choke to tune your machine on the fly, more power to you. But please don't offer your advice pretending like you know what you are talking about... |
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Post by prodigit on Jul 28, 2013 12:44:03 GMT -5
After some more test rides, it's safe to say that the drilling actually makes very little to no performance difference. When I was riding 50MPH, was with a seemingly strong backwind. I've done many test runs, and my speed hasn't realy changed. I do like the sound better though.
I would not take out the exhaust tip, as the sound might become too loud, and some powliice could ticket you for too much noise.
But so far no real change on the 50cc.
I'll be testing out the 150cc soon.
As for the popping sound, the muffler of TaoTao scooters is so good, that even if you had popping sounds you wouldn't hear it until you drilled it out.
All I'm waiting to see is the MPG results, to see if the bike runs a bit better being drilled out compared to stock. I guess I won't see more than 10MPG difference; perhaps 5MPG difference at best. Makes more sense to pump up the tires HARD than to drill out an exhaust if you want to boost performance and increase MPG at the same time
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