Modern Vespa

Marfa looking mighty inviting.
Just sayin.

hyhyhy my nephew once in ur kid position, and it was one of the best moment in my life, as he said Big Brother Ebeth, Pranda sorry for hitting the vespa, i smile while saying, its just a vespa as long as ur not hurt its fine.. Next thing is he hug me aint kids adorable

Today, well more like yesterday, my other nephew, Alif the no oil boy came to my house to pick my wife, since i was banned to ride for several day, i give him my set of wheel and its making his vespa look nicer.. No i didnt get a hug this time since he was already a grow up teen

Have a nice sunday to you all and cheer

And yes, another front bearing fall in the line of duty

I had to pull out the auto lube on my recently rebuilt 71 Sprint the "bubble" in the oil line wasn't moving at all. (Should it disappear?)
and the scooter is dodgy at low revs. I figure the bubble should eventually go away but it didn't. I'm thinking maybe something is wrong with the auto lube.
Put it all back together, checked the gear, it turns) and took a ride. Oil is moving towards the carb again.

BFA 244.

No it's not a 306, but should be way more affordable and no doubt go like stink. What I find impressive is the solution to tiny (compared to motorcycle) transfers with an adaptor plate that changes stud location. Loving the port layout.
It's for a standard 200 case and uses a 127mm rod.

Ginch where does that come from? Country? Where do you buy it? Never heard of it but looks sweet.

Italy. You've heard of BFA before though? Was BSG? 300cc PX motor... start saving

Not for sale yet, they describe it as "ready for first tests".

It would have to be in the same sort of price range as this one (a 225 cylinder for 150 case), plus a bit for their base adaptor. And of course you'd need a new crank.
https://www.sip-scootershop.com/en/products/racing+cylinder+sip+bfa+225+cc+_78245640 (note this is not the 244!)

Reading the description, they broke into the transfer port stud area, like another kit we saw. Requires a gas right seal.

I see now they are in Italy. Ginch I never followed that thread much - although I love a good 2 stroke tuning, this fell into the category of "things I will never be able to afford and would be too scared to try to jet in for fear of having to buy another"

Which cylinder is that Christopher? The 244 or 225? Yeah I know what you mean! I just enjoy seeing the amazing stuff these guys come up with for scooters that are no longer produced. I wonder if there is as much development going on in other similar areas?

The most obvious difference, apart from the capacity reduction, is its method of attachment to the engine casings. This 225cc version of the BFA cylinder employs the same cylinder fixing stud layout as the original Vespa engine casings for the 125-150cc motors. This also leads to the studs being directed through the transfer port cavities, meaning they will require a gas-tight seal at the top to avoid any unwanted leaks.

Combined several of my favorite gearing sheets into one. Chandlerman posted a nice on in tips 'n tricks, but I really like the shift visualization that was in my Lambretta one, so I made one that does both things. You can put in the usable RPM range and the redline, which helps you to see where you will land in the next gear for RPM when you shift. It's a useful way to look at it. Today I was playing with how to make a P150 gearbox work with 8" tires in a VBB.

Nice! Will you be sharing it?

Ginch sure! I will clean it up some more yet. I like how in the Lambretta one you can pick from drop downs for configurations and use buttons to move stuff up and down, I can do that with a little more time

An Openoffice update a while back broke the HP Required function in my original sheet, which was one of my favorite features since it allowed me to predict (and validate with dyno data) the power requirements versus the gearing.

From what little I can see of it, though, I like the Lambretta sheet visualization, and I know that Patrick has some tools of his own that do something similar, albeit with a graphical visualization.

I have a copy of the Lammy one if you need one

That'd be awesome

If you have a link, shoot it over. Otherwise, I'll set one up and share it with you this afternoon or tomorrow morning.

just verified the one I posted is still working. linked from here:

https://modernvespa.com/forum/post2075055#2075055

We can crowd source the best calculator ever

i can put it in my google drive and shoot you a link.

chandlerman - latest Lambretta (and now Vespa!) gearbox visualizers:
https://avantone.wordpress.com/download/

But you need actual excel for it to work - it didn't work in Numbers on my mac. I have not tried in google docs or any other spreadsheet program.

I didn't know he made a Vespa one. It's a bit limited though, no 8" bikes, etc. He did make large and smallframe both in the sheet though, so it's a start. I just like the way this tool works.

That's pretty cool, but you need more data to do it - did you have a dyno run to set it up? otherwise how did you come up with your torque curve? Nice bunch of tools in there.

Patrick, just interested to know how you arrived at the drag coefficient and frontal areas? And are they a bit generic or related to one of your particular scooters? Thanks for that, it's been there for a little while. Maybe a year?
Is your version different to this one?

Oh and I just tried the Vespa gearbox visualiser with LibreOffice - doesn't work.

I made my own less fancy copy of the Lambretta one because I didn't know there was a Vespa one. You have to put in the gear counts yourself, no drop downs. But it's basically the same and mine works on Google Sheets, which is a start.

I couldn't change things - say add a 36t 4th gear in place of the 35 tooth anyway. So sounds good.

for the torque/power curve I started with an estimate, then when I put the unstealth on the dyno I updated it with real data. then based on known power and gearing and what my level ground top speed was I backed into the drag and used a photo of the front to estimate the frontal area. the drag coefficient of a brick is not a bad estimate :P

lately I use EngMod2T to get the estimated curve.

more than just the wind drag I use the incline to figure out where I'm going to get stuck between 3rd and 4th. I normally use a 6% grade for that.

I know it doesn't have lookups for the gearboxes, but I normally run to the other gearing spreadsheets to pull out the needed tooth counts.

Balanced my wheels... Well... got them balanced I should say. They needed it anyway (can you believe) but then I added the Motogadget mo.pressure caps to them. Was waiting to put them on before balancing them. They look a bit ridiculous - like tech mushrooms growing out of the rims. But they tell me tire pressure and heat plus warn if the pressure drops below a certain value.

Trick to get rims balanced - take a hub in with you. My guy has tapered fittings that will centre in the bearings of the hub, the mount the rims to that and balance them.

And yeah... taking the rear rim off with the wide tire conversion is a drama. Gotta take the pipe off so the motor can be dropped as far as it will go (even have to take the airbox cover off to clear the frame) and then the rim will just slip out.

Randomly... recently we were talking about what tool to use to ping the springs on and off the pipe. Found this tool that is for taking the wheel out of kids Heelys - those shoes that kids scoot around the mall in. It's perfect for the springs and easily fits in my small tool bag for the scoot.

nice tools Brother PP, i might made one someday,

Yesterday i clean my exhaust by burn it with leaves i am go green person (i think) work nicely and now i juat clean the bike and off i go to a friend house in cilegon (around 100km) while doing so i might see as well see if the exhaust will rub the tyre or not, until theb have a nice day to you all and cheer

today i went to start my long dormant Ninja 250 and no love - pilot circuit is not working on one or both of the carbs - it won't idle. Let me just say that pulling the carbs on this thing is 100x more work than a Vespa, you have to remove fenders, gas tank, battery, air box, etc. all just to get at the buggers.

the carbs are on the bench, that's tomorrow's job. not been riding enough with work from home. The ninja's the worst for protesting sitting. The primmy just starts even when you've left it alone for months. GTS300? - fuel injection rocks, no sweat.

Today I put my Tucano Urbano lap blanket on. It's getting cold outside!

I climbed past my Tucano Urbano lap blanket in my storage locker in Nashville to get to my summer-weight riding jacket on Saturday. Is that similar?

Damn you southerners!

Ten days ago, I was right up there with you in Chicago. What I didn't mention was that 99% of my stuff is also in that storage locker until I can move into my house, which comes with its own scooter-related challenges.

If it ran at all, I'd have tried putting seafoam in the tank and nursing it to see if that would get the gunk out of the carbs before I went through all that.

Too late, chandlerman

Today I went to work on the Lambroken, but realized the rescue dog we grabbed on Saturday needed my attention more....

#Goodproblems

Oh, well. Can't say I didn't try. Dogs are better than Lambrettas. It's an awkward fact, but a fact nonetheless. I'd have made the exact same decision . What's its name?

To be determined! She is a sweet gentle soul. Accordingly I suggested 180 but the wife wasn't having it.

She does look like a sweet girl, love her coloring. Give her ear scratches for me. Rescues are the best, they appreciate a good home.