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  #1611  
Old 06-22-2011, 11:56 PM
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GearNut GearNut is offline
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Default Re: what did you do to your motor bike today?

Finished up my crossover exhaust and installed it.
Went out for a test ride and I am very pleased with how well it performed.
http://motorbicycling.com/f51/cross-...ust-30761.html
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  #1612  
Old 06-23-2011, 05:28 AM
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retromike3 retromike3 is offline
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Default Re: what did you do to your motor bike today?

I bet that your rear wheel stays a lot cleaner.
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  #1613  
Old 06-23-2011, 12:19 PM
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RebelHellbilly RebelHellbilly is offline
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Default Re: what did you do to your motor bike today?

made a chain adjustment and dodging rain!
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  #1614  
Old 06-24-2011, 01:56 AM
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retromike3 retromike3 is offline
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Default Re: what did you do to your motor bike today?

Today I think I fixed the clutch lever for my Skyhawk. The button that holds the clutch in place had come off while I was riding it earlier this week and that left me without a front brake. So I got on the net and looked up a new clutch lever.

After I ordered it I found out that it was from the dreaded boy go fast, but I figured that I might get lucky this time. It turns out that I did and did not at the same time.

When the package arrived from The City of Industry it turns out that this lever was the old style mountain bike lever and that its handle was two small for my handlebar. when I tried to open it up a bit with a screwdriver buy prying the clamp open it just broke into two pieces.

So what I did next was to take the button off the new handle and mount it on my old lever. lucky for me that button was of a better caliber of manufacture than the lever. The button was made of steel and there was a section I could put a die on so I could replace the pop rivet with a nut. I had to make the holes on the old lever match the new button. I did have to go to the store and get a die and some extra nuts of the size I needed. After threading the end of the button and Loctiting the nut in place, I think I now have a clutch that will keep working. (road it to the store and back and it seems to hold up so far) Its hard to believe that all of my work on this bike can be sabotaged by a cheep button.

mike

Last edited by retromike3; 06-24-2011 at 02:02 AM.
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  #1615  
Old 06-24-2011, 03:52 AM
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Default Re: what did you do to your motor bike today?

Put new rings and gaskets on the cylinder, compression is up, but still waiting on the seals.
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  #1616  
Old 06-24-2011, 05:11 PM
KCvale KCvale is offline
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by Dan View Post
KC, am so glad to read every one is OK and the fire was just stuff. Not that that isn't a big 'ol bummer in it self, but every one is OK.
.... I got this idea for a solar powered heat exhaust/drag in cool air. Is just some ABS pipe. As the sun heats it, it creates a vacuum in the room. The only air available to replace it comes from insulated pipe that is run under ground but sucks in from open air inlet.
I love the way you think Dan, we think a lot a like, but I highlighted the flaw in your design in your quote.
I couldn't even make a tiny hall closet in the middle of the house air tight enough to create a vacuum, and even that is if I never opened the door.
Like you I have hundreds of ideas that look good on paper but just won't work in real life ;-}

The long shop wall with big sliding glass doors faces West with no shade at all, so from Noon on it gets beat with direct sun until ~6PM.
The shop is getting this installed up near the ceiling in the SE corner of the room.
FRYS.com*|*LG
The outside part will ALWAYS be in the shade there, and it's remote controlled ;-}

Reconstruction starts this coming Monday. The contractor and I are on the same the page so I think that 10,000 BTU remote controlled window AC unit installed in the wall will keep me comfortable all summer.

What did I do to MY motorized bicycle today?

I installed a beverage holder before I started, and then beat the piss out of the bike for ~30 miles in about the most extreme heat conditions you can imagine.



Even though the back rack bag is actually an insulated cooler inside it does not put a beverage in easy reach at a stop light so I found a place to mount it and love it.

I learned some new things as well...

Extreme heat can and will cause problems.
Near as I can tell my new batch of 91 octane gas mixed with Amosoil Saber Pro Synthetic 100:1 mix oil at 75:1 mix still causes the gas in the carb to evaporate at low RPMs.

When I say I was riding hard I mean a mile or two @5500 RPM (35MPH with gears) then stop and go again in 110F temps for 20 miles.

Note I have a Black Skyhawk motor so that may be a factor, but spit shouldn't boil on the carb's float bowl when I stop.

When it cools off I'll pull the NGK BPR7HIX Iridium plug and see if I may be too lean but I don't think that is it. Then again, this is the most extreme I have taken anything I have build and it may very well be the cause.

Any thoughts?
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  #1617  
Old 06-24-2011, 11:27 PM
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by KCvale View Post
Extreme heat can and will cause problems.
Note I have a Black Skyhawk motor so that may be a factor, but spit shouldn't boil on the carb's float bowl when I stop.
Any thoughts?
Yes. Almost every motorcycle I have worked on that had a flange mount (bolt on) carburetor and manifold, with the exception of the Honda CT70, had a brown or black heat insulator in between the cylinder and intake manifold.
It is there to help prevent heat transfer from the cylinder to the carburetor.
An intake gasket by itself will not block the heat transfer, soooo.....
I am thinking of making one for my little beastie.

Someone on this site posted the name of the material that the heat block is made of. It looks like it is made of fiberglass mesh and brown resin, although it is not.

Edit: I searched for it and all I could find was "phenolic heat insulator", which looks to be the correct material.
__________________
The_Aleman:
"It's a chinagirl. It's a sometimes fun little engine that often will break your heart. It's disposable.

Does not come with a fortune cookie."
________________________
ROTFLMAO!!!!!!

Last edited by GearNut; 06-24-2011 at 11:38 PM.
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  #1618  
Old 06-25-2011, 01:49 AM
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Wm Holden Wm Holden is offline
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Default Re: what did you do to your motor bike today?

replaced the 7 speed rear wheel with a single speed heavy duty spoked coaster brake style wheel. (5 broken spokes was enough reason)
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  #1619  
Old 06-25-2011, 11:32 AM
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RebelHellbilly RebelHellbilly is offline
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Default Re: what did you do to your motor bike today?

today nuffing. yesterday she broke down on me. 1st thought was plug fouled. put a new 1 in. nuffing. switch out the CDI. hit 1 time and quit. so..i pulled the magneto cover off and took it out. i thinks its shot. done ordered a new 1. gotta know i purdy much ride everyday had the motor for almost a year now. 1st part that wore out on its own and i didnt accidently break!lol
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  #1620  
Old 06-25-2011, 12:13 PM
chrisvermilyea88 chrisvermilyea88 is offline
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Default Re: what did you do to your motor bike today?

I need some help bad my bike wont start up I have a 80cc slant head and what happendwas I was rideing down the road and the bolt for the carb came out and the carb fell off I've took it apart and cleaned it with carb cleaner and put it all back together and put a new bolt in it to hold it om and it still will not crank I even replaced the cdi box thinking it wasn't getting fire idk what else to do please help this is my only transportation to work and all.
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