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Discussion Starter · #1 · (Edited)
Recently changed the oil on my 50cc with the oil that was recommended for my 125 which is 15w40 synthetic but also says my 50cc is 15w40 so I thought it would be fine. First off I did debaffle first and test ride before oil changed and noticed it was slower take off, mid and top end.. but sounded great. Changed the oil after a 5min ride of testing the debaffle and then test drove again.. 20 max uphill which was originally 30 if not more. Flat 33 which is normally 42 and downhill 37 which is normally 49... What the hell happened? It's dangerously slow. Please help.
 

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Ha, you're just like me. I also have a habit of taking the nuclear option when modding stuff. You'll be better off with a new muffler/exhaust, anyway. You can get better sound and keep enough backpressure. :)
 
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Making your ear drums bleed will not help your power enough, and usually when you remove the back pressure requires more fuel to be stuffed through it via a tune kit or a jet kit, and well on a 50cc pulley's, or sprocket change and revlimiteres is how you make them go faster. I had a 50 cc I put a jug kit on (an eton Scooter) and pulley's and re jetted it and done all the fancy stuff to make it go fast (60mph) just to have it die early. I put it back to stock and sold it and bought another real motorcycle again.
 

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Discussion Starter · #10 ·
And just WHY do you want it louder??
Oh...I know!

LOOK AT ME!! LOOK AT ME!!!
<img src="http://www.motorcycleforum.com/images/smilies/rolleyes.gif" border="0" alt="" title="Roll Eyes (Sarcastic)" class="inlineimg" />
Nothing to do with.. All comes down to safety. We should all know as riders that we sometimes go unseen leading to accidents. Louder you are, more likely to be noticed in a blindspot.

And yeah, who doesn't want a nice sounding bike?
 

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And just WHY do you want it louder??
Oh...I know!

LOOK AT ME!! LOOK AT ME!!!
:rolleyes:
My Blast wears a glasspack! I mainly did it because it was a cheap roadside fix for the previous muffler that took flight. I do get a giggle from riding a sport bike that sounds like the very wrong pairing of a chopper and a dirt bike. :D

Thankfully it's quiet when you're easy on the throttle so I can come home at midnight and not wake the whole neighbourhood.

Though, I'll admit the novelty of the noise is wearing thin and I'll probably soon switch to something with more refined sound or figure out a way to baffle the glasspack.
 

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I would never rely on sound / loud pipes to save you whatsoever, generally speaking. Most people are driving with the radio on, or talking on the phone, and they aren't worried about you at all. Newer cars are very well sound dampened as well. The loudest pipes I've ever had settled into a dull roar at cruising speed, that nobody is going to hear much with the sound projecting BEHIND them. The best approach is to never ride in a blind spot unless it is utterly unavoidable, which hardly if ever happens.

Find some aftermarket pipes with baffles in them to get some backpressure back, and you should find that it runs better.
 
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