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Opening up Air-box to let it breath more freely
Posted: Sat Jun 25, 2011 12:51 pm
by pattersondm
Just want to confirm that in the embedded picture below the I need to remove the plastic to the left of the open intake hole that is currently their. This is for restricted SA50P mod.
Thanks

Re: Opening up Air-box to let it breath more freely
Posted: Sat Jun 25, 2011 1:00 pm
by dun rite
I believe so. If you open it up don't forget to upjet the carb. the unrestricted model had a larger main. #78 according to bike bandits site.
Re: Opening up Air-box to let it breath more freely
Posted: Sat Jun 25, 2011 5:41 pm
by odinxxix
have you done anyother mods to your SA50P? yea you can open up that hole, yes replace with a #78 jet. but if you are UNrestricting the sa50p you also need to grind out the washer in the exhaust. and while your at it remove the washer on the back of the variator.
Re: Opening up Air-box to let it breath more freely
Posted: Sat Jun 25, 2011 5:54 pm
by kingkamehameha
There is also a small tube with a flanged end where the carb bolts to the intake mani. It restricts air and gas going to reeds.
Re: Opening up Air-box to let it breath more freely
Posted: Sat Jun 25, 2011 8:18 pm
by evilone
kingkamehameha wrote:There is also a small tube with a flanged end where the carb bolts to the intake mani. It restricts air and gas going to reeds.
I've never seen that tube. Do you have a pic by chance?
Re: Opening up Air-box to let it breath more freely
Posted: Sun Jun 26, 2011 12:21 am
by pattersondm
Hello,
The washer on the exhaust has been removed, installed SR oil pump w/ split throttle cable, bump needle clamp one notch, installed #85 main jet, running Keli variator w/ 9g weights, also went ahead and installed a SEF ramp plate.
This evening I drilled out the other air intake hole on the outer cover of the air box (thanks to the confirmation reply)
Thinking of doing a 9:1 gear change next to increase my top speed but will leave that discussion for a different thread.
Thanks,
Duder
Re: Opening up Air-box to let it breath more freely
Posted: Sun Jun 26, 2011 12:53 am
by Bear45-70
pattersondm wrote:Hello,
The washer on the exhaust has been removed, installed SR oil pump w/ split throttle cable, bump needle clamp one notch, installed #85 main jet, running Keli variator w/ 9g weights, also went ahead and installed a SEF ramp plate.
This evening I drilled out the other air intake hole on the outer cover of the air box (thanks to the confirmation reply)
Thinking of doing a 9:1 gear change next to increase my top speed but will leave that discussion for a different thread.
Thanks,
Duder
Which way did you 'bump" the needle clip? up or down?
Re: Opening up Air-box to let it breath more freely
Posted: Sun Jun 26, 2011 7:59 am
by pattersondm
Which way did you 'bump" the needle clip? up or down?
With out looking I am not 100% sure but my gut tells me I raised it up one notch. Please, let me know what is correct please.
Also, raising the clip will lean the mixture and lowering will richen it up correct?
Re: Opening up Air-box to let it breath more freely
Posted: Sun Jun 26, 2011 11:08 am
by Bear45-70
Yes, raising the clip leans out the mid-range. Lowering the clip does the opposite.
You want to enrichen the mid-range not lean it out when you open the airbox up.
Re: Opening up Air-box to let it breath more freely
Posted: Sun Jun 26, 2011 12:05 pm
by pattersondm
Thanks Bear45-70, I will make that correction.