Derestrict Questions: Airbox, Exhaust, and Oil Pump

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jesse1234
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Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by jesse1234 »

Hello friends,

Finally got around to pulling my restricted SA50P apart today and found some interesting things... I went hunting for the "second airbox tab" to punch out, as well as the "washer to drill out in the exhaust" and couldn't find either. This is where I was looking:

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In the front end of the exhaust near the flange, there was no noticeable washer, and in the airbox, both tabs on the cover were missing.

Am I looking in the wrong place? Or do you think it's possible that someone before me did some of the derestricting but didn't derestrict the variator? I'm still topping at 30MPH. I wasn't able to pull the variator to look as I didn't have access to an impact gun.
Last edited by jesse1234 on Sun May 06, 2012 11:46 pm, edited 1 time in total.
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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by Mystic »

looks like the exhaust may have been swapped to an unrestricted SR as well as the airbox desrestricted already. did you check to see if the variator restriction plate had been removed?
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged :D
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by jesse1234 »

I didn't because I don't have an impact gun and all shops in my area were closed. I plan on checking next weekend, but I can't imagine it was removed at the scooter never hits over 30mph.
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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by Mystic »

you may want to check the main jet in the carb as well restricted is a 68 derestricted is 78
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged :D
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by bakaracer »

use a oil filter wrench ,the one that looks like a adjustable channel lock. you can get those from harbor freight for about $7. use that to hold the drive face and use a long handle ratchet and 17mm socket.

http://www.harborfreight.com/2-inch-to- ... 36778.html
Last edited by bakaracer on Mon May 07, 2012 12:02 am, edited 1 time in total.
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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by jesse1234 »

While I had it apart I actually installed a #78 jet... couldn't really see a noticeable size difference from the one that was previously installed though, but I assume the visible size difference from a #68 to #78 is minute.
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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by Mystic »

genuine keihin jets are stamped with the jet size. If it only does 30 then the variator is still most likely restricted
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged :D
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by evilone »

bakaracer wrote:use a oil filter wrench ,the one that looks like a adjustable channel lock. you can get those from harbor freight for about $7. use that to hold the drive face and use a long handle ratchet and 17mm socket.
X2
or if you happen to have a big set of channel locks you can use them.
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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by jesse1234 »

Any reason why I'd get the channel locking version over the more adjustable locking version?

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Re: Derestrict Questions: Airbox, Exhaust, and Oil Pump

Post by evilone »

Either one of them will work. I just use big channel locks since i already had them.
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2001 Honda Elite
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1994 Yamaha Axis

I can't believe
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in the backseat
when I clearly
called shotgun.
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