Bike ran great when muffler fell apart, runs very slow with muffler

Z

Zack01GC

New Member
When my muffler was off my bike, it went real fast and pulled nice and hard up hills. Now that I repaired the muffler and put it back on, the bike is very slow and doesn't make enough power to get me up hills.

What's the problem here?
 
Zack01GC said:
When my muffler was off my bike, it went real fast and pulled nice and hard up hills. Now that I repaired the muffler and put it back on, the bike is very slow and doesn't make enough power to get me up hills.

What's the problem here?
Click to expand...

With your muffler removed you have removed all back pressure. Which most likely also caused your motor to run lean which eventually will kill your motor.

Look into getting a tuned pipe if you would like some performance back.
 
Wow, this must be a severe deficiency in the factory muffler design in that case. The performance is absolutely awful with the muffler on. It can't even pull me up a hill compared to the same hill with no muffler going 25-30 mph.
 
Take the baffle out for a improvement in power without making it too loud. A tuned pipe with the carb set up right is the best way to go for improved overall power and running.
 
Take the baffle out?

My muffler canister is made up of 3 pieces. The endcap bolts to a piece of allthread that is welded to the baffle inside... not sure how to go about that.
 
My muffler looks like this inside.

29263d1285168983-muffler-blowout-img_0647.jpg


I take it you mean the solid tube that goes through the end cap?
 
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