Looking for 70cc polini big bore advice

Does your Spree/Elite already run great, and you're trying to make it quicker/faster? Need a monster motor swap? Discuss your ideas here.

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spree picker
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Looking for 70cc polini big bore advice

Post by spree picker »

I have a 2001 elite I bought that already has the kit.whats is the best spark plug to run and were should the idle air screw be set at
I give old Sprees a new life
veedubh20
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Re: Looking for 70cc polini big bore advice

Post by veedubh20 »

need to get ngk b8hs.

what you plan to run on the motor setup?
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spree picker
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Re: Looking for 70cc polini big bore advice

Post by spree picker »

It's already set up carb,intake reads and polini belt variator and red clutch spring and v8 pipe
I give old Sprees a new life
veedubh20
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Re: Looking for 70cc polini big bore advice

Post by veedubh20 »

just run 32:1 premix.
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scottinscotty
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Re: Looking for 70cc polini big bore advice

Post by scottinscotty »

i'm still running my oil injection... and love it! ... i wouldn't recommend on pre-mixing 32-1 .. but that's up to you!
72cc polini contesa kit
oko variator with 8.5 gram malossi weights
21mm Black Oko Carb & Ct Manifold
8.44 gear
malossi MHR exhaust
Dio zx trans conversion
1000 center spring
1500 grabbers
sef ramp plate
B9hs plug
GPS 60mph
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scottinscotty
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Re: Looking for 70cc polini big bore advice

Post by scottinscotty »

and if it has the stock carb.. i'd probably go with a b9hs i would buy a bigger carb though, the pilot jet in your stock carb is migty small for that cylinder and you may risk seizure when you let off the throttle after a long wot. run!
72cc polini contesa kit
oko variator with 8.5 gram malossi weights
21mm Black Oko Carb & Ct Manifold
8.44 gear
malossi MHR exhaust
Dio zx trans conversion
1000 center spring
1500 grabbers
sef ramp plate
B9hs plug
GPS 60mph
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scottinscotty
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Re: Looking for 70cc polini big bore advice

Post by scottinscotty »

i'd start with 1 & 1/4 turns out on the idle air scew..
72cc polini contesa kit
oko variator with 8.5 gram malossi weights
21mm Black Oko Carb & Ct Manifold
8.44 gear
malossi MHR exhaust
Dio zx trans conversion
1000 center spring
1500 grabbers
sef ramp plate
B9hs plug
GPS 60mph
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Trafficjamz
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Re: Looking for 70cc polini big bore advice

Post by Trafficjamz »

scottinscotty wrote:i'm still running my oil injection... and love it! ... i wouldn't recommend on pre-mixing 32-1 .. but that's up to you!
How does your oil pump run to your ct mani? did you tap a second hole?

I wouldn't dare run the stock oil pump on my 72cc polini. :nervous:

It can only mix the oil and gas at about 70:1
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
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Trafficjamz
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Re: Looking for 70cc polini big bore advice

Post by Trafficjamz »

spree picker wrote:I have a 2001 elite I bought that already has the kit.whats is the best spark plug to run and were should the idle air screw be set at
The idle should be set so that the tire does not spin while on the centerstand.
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
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scottinscotty
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Re: Looking for 70cc polini big bore advice

Post by scottinscotty »

Taped a second hole.... I've put almost 2000 miles on my kit with the stock oil pump...
72cc polini contesa kit
oko variator with 8.5 gram malossi weights
21mm Black Oko Carb & Ct Manifold
8.44 gear
malossi MHR exhaust
Dio zx trans conversion
1000 center spring
1500 grabbers
sef ramp plate
B9hs plug
GPS 60mph
ottoman
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Re: Looking for 70cc polini big bore advice

Post by ottoman »

Everyone has their own idea on oil ratios and if it works great!
I run 42.5:1
Why 42.5:1? Because I am lazy and thats 3 oz per gallon. Run it in everything from my weed wacker to my drag scooters and never had a lube related failure.. not saying I never wrecked anything but that always came down to operator error :oops:
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bakaracer
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Re: Looking for 70cc polini big bore advice

Post by bakaracer »

spree picker wrote:It's already set up carb,intake reads and polini belt variator and red clutch spring and v8 pipe
What carb,manifold and reeds are you using?
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spree picker
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Re: Looking for 70cc polini big bore advice

Post by spree picker »

21mm
I give old Sprees a new life
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kingkamehameha
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Re: Looking for 70cc polini big bore advice

Post by kingkamehameha »

scottinscotty wrote:Taped a second hole.... I've put almost 2000 miles on my kit with the stock oil pump...
Do not use the stock pump its asking for trouble
ua mau ke 'ea o ka aina i ka pono o hawaii
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spree picker
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Re: Looking for 70cc polini big bore advice

Post by spree picker »

It's Plugged
I give old Sprees a new life
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