Nasty Black Niner

[zedooo]

Nope, 49cc straight :/

[zedooo]

Here are some news & pics

I found little play in my right bearing, so decided to take it all apart and change it...so my current motor status is liek this:



Someone bumped into my scoot in front of my building at Friday night (drunk) like 4 months ago and broke my cooling duct, scratched my exhaust, and right mirror. The bad news is that I found a crack in my right casting (where you pour the oil) now.
The good news is that I bought another one for 50HRK (that's about 10USD )





Decided to make the flywheel lighter by 20%. That means going from 723g to 575,4g (20,4oz)

I did this:



Still 67,6g short.
Ok, time to get extreme:



I am now at 578,4g, happy as a man could be I know that I took a few grams off the center, which doesn't really do anything, but I couldn't help myself..

Now have to get the new bearings on, and then we'll see. I'd like to shave off a few casting marks to make the oil circulate better. We'll see how that goes

[90GTVert]

Really nice work. Great deal on the case too.

[zedooo]

Back to my project...we had so much snow in Croatia, I was off snowboarding every day

I cannot get the damn bearings off the crankshaft, they're driving me nuts

[90GTVert]

If you don't have a bearing or gear puller you should be able to heat the bearings with a torch to remove them.

[zedooo]

I tried that, didn't work. I'll try it again, it wasn't a great day for me that day

Thank you for your help

[zedooo]

The scoot is coming up really really well, it will be awesome I'll have few pics this week...
Till then, little key moddin'

My key broke:




So I got all the plastic off:




And got that into the ball bearing from the GY6 crankshaft

[drawkward]

Awesome key! Great idea!

---

One a side note...
I was also wondering if you noticed any difference in your throttle response after you lightened your flywheel.

[zedooo]

Thanks, I like it very much Proud of myself, haha

I doubt I'll notice the difference because I did so many mods that it'll be a great improvement! (carb mods, valve mods, valve retainer mods, head mods, 50-72cc, flywheel, clutch lightening)

[90GTVert]

Custom right down to the key! This man means business. ;D Really cool idea.

[2strokd]

Thats a sweet ass key man!
I love it! Good thinking

[Greg]

Awesome work. Do you have your own machine shop?

I have the same type of keys.
One of mine broke too.

My fix was not as creative as yours, but it works.

Attachments:

[zedooo]

hehe

I have a small workshop, but its primary function is service of medical equipment, mostly dentist's stuff. Now, as I do more photography, I have time for mods like these!

[zedooo]

Finally got some time to work on the scoot

The 72cc is in, everything is lightened up, I'm still working on the torsion control, but I got the stock in there today to make a pass or two

After 3 heating cycles, decided to go WOT It's ok, the rollers that I have put in are too heavy, but I did it on purpose so I don't overrev until the engine breaks in a little.


Rims got matt black powdercoating, I simply adore them now ;D
Just look at them



Now the scoot looks even better, atleast in my opinion





Got the thermometer in: (before the first firing)



0-50km/h, about 9 seconds...slow

And yeah, I have tires with a little bigger diameter now, so maybe mi chinometer measures the correct GPS speed now, I have to check

www.youtube.com/watch?v=jHR4gBd2KjU

[90GTVert]

Those wheels do look nasty. ;D Good thinking on the heavy rollers for break-in. I wanna see what she does when you get it tuned the way you want.