Vacuum take off for pwk 28mm.

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L.B.
Master Stroker
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Posts: 370
Joined: Mon Aug 29, 2011 7:08 pm

Vacuum take off for pwk 28mm.

Post by L.B. »

This mod isn't for everyone,i mainly wanted to retain stock look as much as possible including hoses etc.
So...here we go drilling into brand new 28mm pwk's.
Start with a 3mm drill bit & drill through this spigot/nipple to the intake tube.

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Then take a 4mm x .7 plug tap & tap this hole approx 5mm in,drilling through for the vacuum cross drills into this circuit. Its not used as it is an optional bowl vent. There are 2 vent holes & the other side is used so all good.
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Then take your 4mm grub screw that has a slight coating of fuel proof thread lock & tighten into place.

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Ultrasonic clean carb & blow it out to clear any chips etc from drilling & tapping & you're done. Make sure your thread locker is fuel proof.
Oh,then ride & enjoy.

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hybrid
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Re: Vacuum take off for pwk 28mm.

Post by hybrid »

Nice work.
Is this for your petcock?
RD350LC- RGV Mods, PWK28's
RZ500 - YZR Replica, PWK28's
L.B.
Master Stroker
Master Stroker
Posts: 370
Joined: Mon Aug 29, 2011 7:08 pm

Re: Vacuum take off for pwk 28mm.

Post by L.B. »

Thank & yes Jeff to keep the vacuum for the fuel petcock....i should've relayed that point lol.
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