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  #1631  
Old 06-29-2011, 09:44 PM
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mmmmudd mmmmudd is offline
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Default Re: what did you do to your motor bike today?

Contemplated, ...
half a cigar's worth. .. .
The problem with inheriting a project, no matter how cool, is the family politics that go along with it. I'm thinking I'm gonna start with a fresh engine kit and a fresh bike, paint it the same color and see if anyone notices. It'll be a "tribute bike" I'm thinking.
I'm absolutely sure I've spent like 4 to the 3'rd power more time siting on a milk crate contemplating the possibilities and smoking cigars than I have actually riding my bike . . .
In the end it's all joy I guess!

Last edited by Dan; 06-29-2011 at 10:26 PM.
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  #1632  
Old 06-29-2011, 10:30 PM
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Default Re: what did you do to your motor bike today?

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Originally Posted by mmmmudd View Post
Contemplated, ...
half a cigar's worth. .. .
The problem with inheriting a project, no matter how cool, is the family politics that go along with it. I'm thinking I'm gonna start with a fresh engine kit and a fresh bike, paint it the same color and see if anyone notices. It'll be a "tribute bike" I'm thinking.
I'm absolutely sure I've spent like 4 to the 3'rd power more time siting on a milk crate contemplating the possibilities and smoking cigars than I have actually riding my bike . . .
In the end it's all joy I guess!
I love doing just that. Cup of coffee or a libation, a smoke and just sit (also on a milk crate. is the perfect height) and just contemplate. "Medi-engineering" ("engi-meditation"?)

Oh man! On an early Sunday morning. No one but the birds, the bike and me.
A perfect day....
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  #1633  
Old 06-29-2011, 11:50 PM
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Acraze Acraze is offline
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Default Re: what did you do to your motor bike today?

Not so much what I did To my motorbike today more so what happened with my and my motorbike today. I ran out of gas. Bummer to say the least. About 3 miles from my truck. I peddle back and man I will tell you, on a 100 degree day easiest gear felt like top gear. My bike sounds like a freggin TANK! You can hear me peddling up on you.
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  #1634  
Old 06-30-2011, 12:00 AM
ducedave ducedave is offline
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Default Re: what did you do to your motor bike today?

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Originally Posted by KCvale View Post
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?
Phoenix,AZ--I don't miss it I. some times kill the motor WOT and restart at 10 mp cool air fuel no spark it blows some heat out BUT IF IT'S 110F WHAT CAN YOU DO! -loss the black paint- cooler spark plug- richer fuel air mix-paint the gas tank lighter color-vary short trips----(?enter cooler?)
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  #1635  
Old 06-30-2011, 12:52 AM
John the Chimp John the Chimp is offline
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Default Re: what did you do to your motor bike today?

Broke a ring and stuck the piston. I was only 12 miles out, mostly up hill. Lol. Looks like I will be doing some polishing on some bearings, piston, rings, rod, wristpin. The whole topend. For the 4th of July weekend.
Im hoping I can find better bearings. Maybe better piston and ring.
Does anyone know of better then china piston and rings for a grubee 66cc.?
Im sure the bearings will be easy. There are a bunch of bearing houses around here.
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  #1636  
Old 06-30-2011, 12:54 AM
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DuctTapedGoat DuctTapedGoat is offline
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Default Re: what did you do to your motor bike today?

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Originally Posted by John the Chimp View Post
Broke a ring and stuck the piston. I was only 12 miles out, mostly up hill. Lol. Looks like I will be doing some polishing on some bearings, piston, rings, rod, wristpin. The whole topend. For the 4th of July weekend.
Im hoping I can find better bearings. Maybe better piston and ring.
Does anyone know of better then china piston and rings for a grubee 66cc.?
Im sure the bearings will be easy. There are a bunch of bearing houses around here.

Just about every online retailer carries them. Check out the links on the sides of the page.
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  #1637  
Old 06-30-2011, 12:58 AM
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GearNut GearNut is offline
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Default Re: what did you do to your motor bike today?

If only we could get a group buy on having Wiseco make pistons for these little engines.
It's too bad that there are 3 different pistons all marketed to fit "66cc".
It would become a nightmare!
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  #1638  
Old 06-30-2011, 01:02 AM
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DuctTapedGoat DuctTapedGoat is offline
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Default Re: what did you do to your motor bike today?

Well, when we're dealing with diff. manufacturers motors, get parts from a retailer of that motor. If it's a Grubee, go with BikeBerry or GasBike, if it's a Raw, get it from Raw. Etc etc.

Though, it would be nice to have some custom stuff made - I myself would like a custom machined 48cc hemi with a shortened skirt on the intake side.
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  #1639  
Old 06-30-2011, 03:03 AM
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Skarrd Skarrd is offline
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Default Re: what did you do to your motor bike today?

i think one of the puch pistons is a direct fit for out motors. i'll see if i can find it
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  #1640  
Old 06-30-2011, 04:36 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?

sat on the plastic dog food dispenser and re-engineered the tensioner...the flat spots that allow it to be tightened without turning inside were rounded and it kept coming loose...put a couple washers on the inside to make the large boss..."stick out" (so i could get a vise grip on it) then put a skateboard wheel bearing on the inside...to help with the off center bearing placement....(ground to proper width...and drilled....tightened it all up...and wallah! a chain that stays taunt. I'm soooo happy.
also put my 7 speed derailer on the bike chain as a "tensioner"...works great as well.
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