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  #2451  
Old 10-30-2011, 12:32 AM
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Mike B Mike B is offline
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Default Re: what did you do to your motor bike today?

Added another muffler to the stock HT unit. Worked great! Less noise, more low end torque and a lot smoother-less vibration. So I headed out to the hardware store for a few more fittings to finish it up and on the way back the rear tire went flat.

Sure enough a piece of wire was in the tire.

Pushed it a mile to a gas station a mile from home and put 60 psi in the tire and hit the road quick. Tire was soft when I got home but at least I didn't have to push it 2 miles -

The wire was solid shiney and stiff. Looked like steel belted tire wire.

Damn cager took out my ride with tire debris.
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  #2452  
Old 10-30-2011, 12:40 AM
vincent713 vincent713 is offline
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Default Re: what did you do to your motor bike today?

What muffler did you install? I'm trying to make my muffler quiet.
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  #2453  
Old 10-30-2011, 12:50 AM
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Default Re: what did you do to your motor bike today?

http://motorbicycling.com/f51/silencer-34834.html

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  #2454  
Old 10-30-2011, 01:20 AM
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DuctTapedGoat DuctTapedGoat is offline
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Default Re: what did you do to your motor bike today?

Liking the design on the stock pipe!
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  #2455  
Old 10-30-2011, 01:33 AM
vincent713 vincent713 is offline
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Default Re: what did you do to your motor bike today?

That looks cool, how quiet is it?
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  #2456  
Old 10-30-2011, 01:43 AM
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Default Re: what did you do to your motor bike today?

It's still louder than the Robin Subaru 33cc, but it's not as loud as it used to be.

It makes a significant differance. The smoothness and low end torque improvement was an unexpected bonus.
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  #2457  
Old 10-30-2011, 02:44 AM
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Default Re: what did you do to your motor bike today?

I still like 5 speed freewheels! I have friction shifters on my prize mtn bike, so I can run 5, 6, 7, 8, or 9 (with thin chain). Right now I only have a cassette hub wheel for it though. But it's neat to borrow friend's wheels and try out their tires without having to swap rims and all.



Yeah, at least on most of these, the pedal system actually works if not too overgeared. A real moped is only good to pedal off the road if it dies. haha. (or maybe out of your dorm so you don't piss off the neighbors)

My first engine chain stretched and the next broke, so I was trying to hitch a ride or phone call. Luckily my wife picked me up (20 miles). I've pedaled the beach bike grubee 10 miles before, and that was slow going, but not too hard.

Quote:
Originally Posted by retromike3 View Post
The 14-36 was a Suntour five speed freewheel (remember those?) and they were only out there for a short time. It was pre index Suntour AG (alpine gearing) I think I might still have one or two of those cogs in my Suntour cog box. I used to have a pegboard with all of the cogs for Suntour so I could customize your freewheel. With only five to chose from and limits of derailleurs back then it was a good idea to set up your gearing to what you were most comfortable with. I usually set folks up with a strait block and then a bale-out

I had a cross bike with a single 38 front chainring and a 13-36 rear freewheel (my stump puller) It was a lot of fun to ride ,but I was a lot younger and fitter back then(sigh)

My current road bike has a lot bigger range than my old AG set up. I have a low gear of 23-32 and a high gear of 46-11. On my motor bicycle I have a 34 up front and a 11-30 in the back. I am glad I have that much range because I have broken my motor chain before and had to pedal home up to fifteen miles.

mike
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  #2458  
Old 10-30-2011, 06:14 AM
MEASURE TWICE MEASURE TWICE is offline
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by Mike B View Post

The larger muffler added on in line with the tube Briggs stock muffler, is it store bought or your own design?

I know that automobiles had in the past maybe still now or not, I have not really checked recently, a separate resonator that is after the catilic converter and before the muffler to change the frequency of the exhaust to a lower tone.

This is maybe what you have achieved. The length of the whole exhaust system also has an effect on the sound, so you have a good time not pissing people off if you’re a baker going to work before sunrise.

I used to do that for a while leaving at 4am and pushed a road bike motorcycle that had a leaking manifold a block to get into a place where it was furthest from residences before starting it. I tried to get a place to weld it but no place was interested so it goes.

Measure Twice
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  #2459  
Old 10-30-2011, 11:11 AM
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Default Re: what did you do to your motor bike today?

The big black muffler is the stock Chinese happy time catalytic that came with the kit. I cut it off from the stock header and replaced that with the flex pipe you see. What I added yesterday was all the copper and the little muffler.

Today it's getting another elbow, a reducer and a short length of 3/8" copper tubing. That ought to tone it down a little more -
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  #2460  
Old 10-30-2011, 11:18 AM
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rustycase rustycase is offline
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Default Re: what did you do to your motor bike today?

I got a bike out in the pile that says Jeep on it... it gots a HUGE low gear on the cassette!
...want me to count the teeth for your info???
It's even got a different derailleur to deal with it.
Best
rc
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