Installed Polini 72cc kit on '94 SA50...Runs well then stops

85spreeelite · Post by **85spreeelite** » Tue Jul 10, 2007 9:23 pm

I have put this kit on my scooter saturday and rode it monday. Now everything seemed to be ok and the bike went to the 50-53MPH area swifty but then the bike just stops but it will start right back up and off I go again until it shuts off again. The 90 jet is what I am using.

Please help

Crotchrocket · Post by **Crotchrocket** » Tue Jul 10, 2007 11:55 pm

WOAH!!!!!!!!!!!!!!!!!
STOP STOP STOP!!!!!
Is this a contesa kit or corsa kit?
What is happening is known as Heat seizing!!!!!!!!!!!!!!!!!!!!!!!
This is bad real bad!!!! DO NOT Throttle the bike hard UNTIL you have 450 miles on it!!! NO EXCEPTIONS...if you have not already damaged the piston...how many seizes has it had?
Take it EZ bro!! Ride at 35 MAX!!!! Also DONT put it under a long uphill climb!!!

The first 3 tanks of fuel I want you to add 4 capfulls of *Honda injector Oil to the FUEL tank! If its an SA50 permanantly wire the auto oiler OPEN!!
If its a SR50 adjust the cable AT the auto oiler to achieve a full Maximum pull!!

Last but not least find some plastic thats somewhat flexible but sturdy (near the gauge that a 50 pack of blank CD's come in.

Remove the engine shroud from the right side...you will notice where the cooling fan induction is its built out away from the engine so it can avoid sucking in heat...cut the plastic in approx. a 3"x7" strip and drill 3-4 holes down the edge of one of the 2 long sides....your going to mount the strip with screws to the induction area of the shroud...so as your speed increases it "RAMS" air into the fan...this accomplishes alot more cool air flow into the fan! Also Ramming air into the fan "PUSHES" the fan and engine to more rpms.

Blow an air hose into the rear of a regular fan at home youll get the idea...or who hasnt "cupped" their hand out a car window at say 40 mph!

If you do not allow the engine to break in you can seriously damage the piston!! I mean seriously damage it!!

If you want a pic of ram air induction here is one from the side view
--------------------------------------------------------------------------> (O

CR

Also have you checked the spark plug to make sure its a nice brown color to insure its getting sufficient fuel? If not it can seize up...and it wont be pretty!

Kenny_McCormic · Post by **Kenny_McCormic** » Wed Jul 11, 2007 12:17 am

Crotchrocket wrote:WOAH!!!!!!!!!!!!!!!!!
STOP STOP STOP!!!!!
Is this a contesa kit or corsa kit?
What is happening is known as Heat seizing!!!!!!!!!!!!!!!!!!!!!!!
This is bad real bad!!!! DO NOT Throttle the bike hard UNTIL you have 450 miles on it!!! NO EXCEPTIONS...if you have not already damaged the piston...how many seizes has it had?
Take it EZ bro!! Ride at 35 MAX!!!! Also DONT put it under a long uphill climb!!!

The first 3 tanks of fuel I want you to add 4 capfulls of *Honda injector Oil to the FUEL tank! If its an SA50 permanantly wire the auto oiler OPEN!!
If its a SR50 adjust the cable AT the auto oiler to achieve a full Maximum pull!!

Last but not least find some plastic thats somewhat flexible but sturdy (near the gauge that a 50 pack of blank CD's come in.

Remove the engine shroud from the right side...you will notice where the cooling fan induction is its built out away from the engine so it can avoid sucking in heat...cut the plastic in approx. a 3"x7" strip and drill 3-4 holes down the edge of one of the 2 long sides....your going to mount the strip with screws to the induction area of the shroud...so as your speed increases it "RAMS" air into the fan...this accomplishes alot more cool air flow into the fan! Also Ramming air into the fan "PUSHES" the fan and engine to more rpms.

Blow an air hose into the rear of a regular fan at home youll get the idea...or who hasnt "cupped" their hand out a car window at say 40 mph!

If you do not allow the engine to break in you can seriously damage the piston!! I mean seriously damage it!!

If you want a pic of ram air induction here is one from the side view
--------------------------------------------------------------------------> (O

CR

Also have you checked the spark plug to make sure its a nice brown color to insure its getting sufficient fuel? If not it can seize up...and it wont be pretty!

QFT!!!!!!

Crotchrocket · Post by **Crotchrocket** » Wed Jul 11, 2007 12:46 am

85spreeelite · Post by **85spreeelite** » Wed Jul 11, 2007 1:49 am

CrotchRocket I have the POLINI BIG BORE (CONTESTA KIT). It stopped on me twice, Once going to the store and once coming back home. I wont open it up loke that again and I will add the honda oil in the morning.

stillspeeding · Post by **stillspeeding** » Wed Jul 11, 2007 4:28 am

I hope you are not using the stock 12mm carb #100 main jet tells me u-r tell me im wrong?

Crotchrocket · Post by **Crotchrocket** » Wed Jul 11, 2007 9:12 am

I hope you are not using the stock 12mm carb #100 main jet tells me u-r tell me im wrong?.

I am using a stock carb. yes! And 100 jet...I get plenty of fuel! I am also using a stock muffler, resticter washer REMOVED baffles in place! My airbox is undrilled with the air inlet restrictor removed!

My fuel/air mix is perf. at the moment, if I would change to a Hi-Po exhaust I would need the 19mm carb.

Its VERY important to do ALL that I recommend above for the health of the engine...she just cant hardly take the rpm's w/o ram air, ect ect ect.

Kenny_McCormic · Post by **Kenny_McCormic** » Wed Jul 11, 2007 3:41 pm

Quote For Truth

85spreeelite · Post by **85spreeelite** » Wed Jul 11, 2007 4:17 pm

Yes I am running the stock carb with a 100 jet. I added the small caps of honda oil and I am just putting around the neighborhoon at 25 mph with no stopping happening and CrotchRocket? You e the man on that ram air idea.

jagojago · Post by **jagojago** » Wed Jul 11, 2007 5:59 pm

I thought it mean quit * talking, lol

stillspeeding · Post by **stillspeeding** » Thu Jul 19, 2007 3:11 am

Mean!!! is when its built right and not just slapped together, there is a science to speed!

stillspeeding · Post by **stillspeeding** » Sat Jul 21, 2007 3:46 am

So you didn't change the gear ratio= stupidty!!!

Crotchrocket · Post by **Crotchrocket** » Sun Jul 22, 2007 5:15 am

DUDE RUN YOUR MOUTH ALL DAY.......
POST YOUR SPEEDOMETER PUNK!

Crotchrocket · Post by **Crotchrocket** » Sun Jul 22, 2007 5:18 am

Proof big mouth!

stillspeeding · Post by **stillspeeding** » Thu Jul 26, 2007 2:52 am

you are the one that is posting problems which i have been through at least 25yrs ago and have spent mega bucks on so when i tell you what you did wrong respect it!