Slow from ~10-22 MPH

Trying to get your Spree/Elite to run, or run better? Post your questions here.

Moderator: Moderator

User avatar
Wheelman-111
Moderator
Moderator
Posts: 10683
Joined: Wed Oct 22, 2008 5:09 pm
Location: Deepinnaharta, Texas

Re: Slow from ~10-22 MPH

Post by Wheelman-111 »

Greetings:

DKAudio axt:
Anyways, I want this thing to be more peppy yet, don't care a whole lot about my top speed of 38 on flat, that is good enough for city driving. Anything else I can do that is relatively cheap to increase acceleration?
Thanks Baka-san already made a good suggestion in June:
if your bike is stock, the stock belt and rollers are fine.iyou might fine some 9.5g rollers that are cheaper than the stock ones. 1.5grams total weight lighter will help in overall performance.
I would add that the weight changes need to be kept to small increments. It's easy to "overshoot" the ideal combination and hate it even more if the rollers are too light. I've never ridden an '85, but my stock '87 Aero had a bigger manifold and reeds and it was none-too rev-happy. If the Vario lets the engine gin up too many RPM, the torque and power suffer.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
User avatar
bakaracer
CBR1000RR
CBR1000RR
Posts: 3519
Joined: Tue Jan 27, 2009 9:51 pm
Location: tacoma,wa
Contact:

Re: Slow from ~10-22 MPH

Post by bakaracer »

yup!! try the 9.5g rollers. as that new center spring breaks in from use and heat, it will get softer so going lighter on the rollers will help during riding as the trans gets hotter. remember heat will soften and break down the metal over time.
Nothing like getting stroked!
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
DKAudio
Goped
Goped
Posts: 93
Joined: Wed Apr 13, 2011 10:27 am
Location: MN

Re: Slow from ~10-22 MPH

Post by DKAudio »

Thanks, I will try some 9.5g rollers when I get a chance. However, one thing is sticking in my mind. Above you said "1.5g total lighter weight". The stock ones are 10g and there is 6 rollers, wouldn't that be 3g lighter total?
User avatar
bakaracer
CBR1000RR
CBR1000RR
Posts: 3519
Joined: Tue Jan 27, 2009 9:51 pm
Location: tacoma,wa
Contact:

Re: Slow from ~10-22 MPH

Post by bakaracer »

yeah it is but you want to run lighter rollers anyways and the 3g drop from stock will be ok. your bike is stock so no need to worry to much on that. if you had a bunch of aftermarket parts like big bore ,exhaust ,carb...... then yeah the 1.5g total weight change is what should be done. the motor become more sensitive to changes when changing to aftermarket engine parts i listed. just changing the center spring wont have that much of a sensitive effects o the 3g drop will be ok.
Nothing like getting stroked!
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
DKAudio
Goped
Goped
Posts: 93
Joined: Wed Apr 13, 2011 10:27 am
Location: MN

Re: Slow from ~10-22 MPH

Post by DKAudio »

Update...kind of,

My scooter is bad in the mid band again, I am guessing due to the 10g rollers that I replaced a few months ago already have flat spots. I'm thinking they must have been cheap, I think they were Prima from scooterworks. Anyways, I've been doing research and found that Daytona or Polini are just about the best you can get but I'm have trouble finding them in 9.5g weight as you recommended. I did find some Polini's in 8.4g, is that too much of a drop with the 1K contra? What would you guess the results to be? I haven't ordered anything yet.
User avatar
Wheelman-111
Moderator
Moderator
Posts: 10683
Joined: Wed Oct 22, 2008 5:09 pm
Location: Deepinnaharta, Texas

Re: Slow from ~10-22 MPH

Post by Wheelman-111 »

Greetings:

I suggest you get the Polini 8.4s regardless. You can mix weights in pairs to test until you decide on the optimum total grams. Then search for a set that adds up to.your total.
The "right" load can be hard to predict. Repeated trial-and-error is often necessary.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
DKAudio
Goped
Goped
Posts: 93
Joined: Wed Apr 13, 2011 10:27 am
Location: MN

Re: Slow from ~10-22 MPH

Post by DKAudio »

Wheelman-111 wrote:Greetings:

I suggest you get the Polini 8.4s regardless. You can mix weights in pairs to test until you decide on the optimum total grams. Then search for a set that adds up to.your total.
The "right" load can be hard to predict. Repeated trial-and-error is often necessary.
Pretty pricey to do trial and error at $30 a set shipped. I will order the 8.4's and see how they do. On another note, anybody use the Dr Pulley slider weights? I am tempted since my new rollers with around 200 miles on them are already flat.
Pretty pricey to do trial and error at $30 a set shipped. I will order the 8.4's and see how they do. On another note, anybody use the Dr Pulley slider weights? I am tempted since my new rollers with around 200 miles on them are already flat.
User avatar
Bear45-70
CBR1000RR
CBR1000RR
Posts: 9244
Joined: Mon Jul 23, 1973 10:24 am
Location: Hoodsport, WA.

Re: Slow from ~10-22 MPH

Post by Bear45-70 »

DKAudio wrote:
Wheelman-111 wrote:Greetings:

I suggest you get the Polini 8.4s regardless. You can mix weights in pairs to test until you decide on the optimum total grams. Then search for a set that adds up to.your total.
The "right" load can be hard to predict. Repeated trial-and-error is often necessary.
Pretty pricey to do trial and error at $30 a set shipped. I will order the 8.4's and see how they do. On another note, anybody use the Dr Pulley slider weights? I am tempted since my new rollers with around 200 miles on them are already flat.
Pretty pricey to do trial and error at $30 a set shipped. I will order the 8.4's and see how they do. On another note, anybody use the Dr Pulley slider weights? I am tempted since my new rollers with around 200 miles on them are already flat.
Buy cheap rollers for testing. When you find the combo you want, buy good rollers.
Bear 45/70
Image

'83 Aero 80 X 3
'84 Aero 80 X 3

'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
DKAudio
Goped
Goped
Posts: 93
Joined: Wed Apr 13, 2011 10:27 am
Location: MN

Re: Slow from ~10-22 MPH

Post by DKAudio »

Bear45-70 wrote:
DKAudio wrote:
Wheelman-111 wrote:Greetings:

I suggest you get the Polini 8.4s regardless. You can mix weights in pairs to test until you decide on the optimum total grams. Then search for a set that adds up to.your total.
The "right" load can be hard to predict. Repeated trial-and-error is often necessary.
Pretty pricey to do trial and error at $30 a set shipped. I will order the 8.4's and see how they do. On another note, anybody use the Dr Pulley slider weights? I am tempted since my new rollers with around 200 miles on them are already flat.
Pretty pricey to do trial and error at $30 a set shipped. I will order the 8.4's and see how they do. On another note, anybody use the Dr Pulley slider weights? I am tempted since my new rollers with around 200 miles on them are already flat.
Buy cheap rollers for testing. When you find the combo you want, buy good rollers.
What is a good site for cheap ones? The cheapest I've found is around $20 shipped.
User avatar
Bear45-70
CBR1000RR
CBR1000RR
Posts: 9244
Joined: Mon Jul 23, 1973 10:24 am
Location: Hoodsport, WA.

Re: Slow from ~10-22 MPH

Post by Bear45-70 »

I'm a flea-bay fan for cheap rollers. Do a search for you specific scooter.
Bear 45/70
Image

'83 Aero 80 X 3
'84 Aero 80 X 3

'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Post Reply