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  #6601  
Old 12-15-2013, 08:47 AM
waldo11 waldo11 is offline
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Default Re: what did you do to your motorized bicycle today?

we have gotten three snows this week so i have been stareing at my bike. every now and then i swear i hear her wisper" ride me ",but i am just too old to fall down.cant wait for warmer days so i can answer her call
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  #6602  
Old 12-15-2013, 12:14 PM
sboricic123 sboricic123 is offline
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Default Re: what did you do to your motorized bicycle today?

My bike is put away for the snow season. But I did buy a new #41 chain, 10ft, plus a couple master links for less than $20 at a hardware store. I plan on putting on the new chain and a new tire on the back during the snow season and hopefully have it ready for the spring.
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  #6603  
Old 12-15-2013, 09:25 PM
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CTripps CTripps is offline
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Default Re: what did you do to your motorized bicycle today?

I remade the exhaust for my cruiser today.

A little background.. A couple of things worked out for us recently, which allowed me to take advantage of "Black Friday". First off, I got a nice little wire feed welder for around 40% of it's normal price (and a couple of other things, of course). Then went and got a short bottle of cougar 25 welding gas for it. I hit Princess Auto (which is similar to Harbour Freight) and picked up an assortment of stuff including a tube bending kit.

I picked up a brand new 12' long piece of 3/4" conduit at the local Habitat for Humanity Restore for $1 to play with.

So anyway, first off I had to get an idea of what the pipe between the expansion chamber and muffler had to be shaped like. Along comes an old friend of mine from years ago when I was a draftsman, a flexible curve:

Flexible curve - great for making curves.jpg

Once I had an idea of what I needed, I bent some conduit to match (this is the tube bending kit and curve's package is there):

Flexible curve, bending kit and bent conduit.jpg

So, I pulled the expansion pipe from the bike with the intent of attaching the exhaust pipe. Something was loose and rattling inside the chamber, though, so I had to cut it open. Turns out there was a tube with a 'cap' tack welded on it that might once have been tacked to the stem at the exit of the chamber. Got rid of it and welded the tip back on the chamber. Also had to reweld the last four inches or so of the bottom seam on the chamber, too. Then I attached the new pipe to the chamber, and the muffler to the end of the new pipe. My welds aren't pretty, but for the first welding I've done in around 2 decades they could be worse.

New exhaust - left side view.jpg

New exhaust - top view.jpg

I got as far as fitting it up before I ran out of time to work with. The bend needs a tweak, it's not quite clear of the crank, and I need to make up a few hanger brackets. With luck I'll get to them soon.

New exhaust in place.jpg
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Any day that starts with a good ride is already a better day, and a bad day riding still beats a good day working.

My Builds: My Beast, Harley59's bike, my Cruiser
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  #6604  
Old 12-16-2013, 02:20 PM
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GearNut GearNut is offline
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Default Re: what did you do to your motorized bicycle today?

That exhaust looks really good, CT!
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  #6605  
Old 12-16-2013, 07:59 PM
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CTripps CTripps is offline
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Default Re: what did you do to your motorized bicycle today?

Thanks GearNut

Got it all sorted out today. A small tweak to each curve got it clear of the crank. My mistake was measuring my curve from the tip of the expansion chamber, then welding the new piece on at the end of the chamber. The tip extends 3/4" past there. The original plan was to put a bracket on the end of the chamber and one on the pipe to bolt them together, but I was having too much fun throwing arcs so they got welded.

Anyway, I had to make some hangers. I went with a 3 piece design, a loop over the chainstay, a straight piece, and a loop around the pipe.

Here's the finished result:

New exhaust installed.jpg

The next thing it's getting will be a reed valve (got to look them up shortly).

This is what it sounded like with just the expansion chamber attached.

This is what it sounds like with the completed exhaust pipe installed. (I discovered after recording that the exhaust studs needed another half turn or so since it had warmed up so it was making a small drip under the port).

Just a little difference. I didn't adjust the idle screw between shots, honest.

Got to take it out for a spin, it's supposed to rain tomorrow, it should be better Wednesday or Thursday.
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Any day that starts with a good ride is already a better day, and a bad day riding still beats a good day working.

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  #6606  
Old 12-16-2013, 08:33 PM
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mapbike mapbike is offline
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Default Re: what did you do to your motorized bicycle today?

when on a ride late this evening, put a new speedometer on the Moon dog Kulana, locked the front break while rounding a corner and went down hard on the rough rocky dirt road, tore up my knee and my right hand a bit, but bike is fine and I'll be a bit sore for a few days I'm sure but I still bounce pretty good.....LOL!

dang little rubber dust cover on the brake cable hung when I pulled the break lever didn't know what it was so I squeezed the lever harder and when it come loose it instantly locked my front brake and the rest was a quick trip straight to the ground...... oh yeah it was fun...LOL!

Map
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  #6607  
Old 12-16-2013, 08:40 PM
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Greg58 Greg58 is offline
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Default Re: what did you do to your motorized bicycle today?

So getting back to the subject of this thread did you call your bike names, kick it or something? Or is crashing "what you did to your m /b today "! Just joking I'm glad you are not hurt bad.
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  #6608  
Old 12-16-2013, 08:52 PM
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Greg58 Greg58 is offline
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Default Re: what did you do to your motorized bicycle today?

Remember Map its not the crash that hurts its the sudden stop or how you land. I speak from experience, I went down on a trail bike at not more than 15 mph on my left shoulder in 2008. After three days in icu and two more in the hospital and a 71k bill Ive been trying to land right!
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  #6609  
Old 12-16-2013, 08:56 PM
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mapbike mapbike is offline
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Default Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by Greg58 View Post
So getting back to the subject of this thread did you call your bike names, kick it or something? Or is crashing "what you did to your m /b today "! Just joking I'm glad you are not hurt bad.
No bad names, bout the worst youl'll hear out of me is typical southern slang words like Dad gum-it, gosh dang-it, Dad Blasted........etc...!

I did hobble around a bit, and before I looked at my own injuries I was up trying to get the bike picked up and looking to see if I caused any damage to it, clutch handle needed rotating back into place and a bit of dusting off was all that was needed.

I'm getting a bit stiff in the scraped up knee already and my shoulder is tweaked a bit along with a nice gash in the palm of my right hand, but I wasn't raised a wussy so unless a bone is sticking out somewhere I just regroup and go again.

Gonna get some nice riding in tomorrow though sore or not, got the bike loaded in back of my F150, gotta take truck into town to have front brake rotors trued up and new pads installed, its a truck the has to have the rotors turned while still on the vehicle so I cant do the job myself.... I'll drop truck off at 8am in morning and then cruise across town to my moms house and hang out there until they get it finished for me, just a few mile ride and my exhaust is very loud on this bike so it may be interesting......

Map
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I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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  #6610  
Old 12-16-2013, 09:22 PM
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maniac57 maniac57 is offline
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Talking Re: what did you do to your motorized bicycle today?

Whipped up a low pipe for The Pig today.
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