Freshman Rider
Currently Offline
Posts: 52
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Joined: Apr 19, 2013 16:40:34 GMT -5
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Post by michaeljackson on Nov 15, 2013 21:18:29 GMT -5
It is being muffled some what because the pipe is alot than the hole at the base. It's not as loud as running no pipe. it's bearable but I was woried that this would cause my engine to run to lean and burn up my engines?. Is this anything to worry about on this engine?. Thanks. i am in desprate need for some good knowledgeable help.
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Post by urbanmadness on Nov 16, 2013 1:24:52 GMT -5
get a muffler on it.... It will run lean and generally not like it. I broke off a muffler on my 150, and had to ride it about 30 miles like that... lost 5mph on the top end, and it would pop on deceleration. These little engines like a little back pressure.
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Post by rockynv on Nov 16, 2013 9:16:31 GMT -5
Get the muffler replaced and track down the source of the vibration that caused it to fail. A vibrating belt or out of balance clutch can cause high and low frequency vibrations that will destroy your muffler and weaken rear bodywork. Eventually you will need to rebuild the gearbox as the bearing on the clutch shaft can take a beating from a vibrating belt or clutch balance issue.
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Post by kxj5906 on Nov 16, 2013 20:08:36 GMT -5
Those Chinese Scooter mufflers are not strong at all. I had my 150cc Chinese scooter have the muffler crack on me where the weld line was. Luckily, I noticed the crack right away and since it was still under warranty I got a new muffler for free. Now I always use zip ties and hook the back end of the muffler to something from keeping it from cracking
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Post by rockynv on Nov 17, 2013 9:05:07 GMT -5
A lot of folks take the vibration and muffler fails for granted however if the bike is running right it should not have muffler fails unless your riding cobblestone streets all the time or attempting the Rubicon Trail. Not changing out the variator when it becomes groved is the most common cause of this which is many times made worse by cheap Kevlar belts that just chew of the soft aluminum faces so that the belt strums like a banjo string as it passes over the gooves which are generally where the belt runs when you are riding at your most common speeds.
Helped a number of folks with this and the solution was replace the variator and use a Gates Powerlink Premuim belt if we caught it in time and if not then also replace the clutch, rebuild the gear box and weld the muffler back together. Smooth sailing afterwards with no failures.
The guy who bought my old bike almost three years ago has not had any muffler failures running the patched up muffler that I just tacked back together without adding any additional support brackets.
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