NickisGod Posted April 17, 2010 Report Share Posted April 17, 2010 so who has them? Me and boston both are wondering what we should do about the ports on the back of the pv. If u don't know what I'm talking about its like a threded hole that seems to be an auxalillary port for a powerjet setup or sumthing in that ball park. Should I block them off or link them up to my billit bowls? Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted April 18, 2010 Report Share Posted April 18, 2010 It's just a breather hole so when the powervalve opens, the air behind the valve can escape. A PWK style main jet goes in it (mine were shipped with 230's)and you run a vent hose to it. press the hose over the jet. Then you run the hose down the frame stays (I tucked mine thru the front motor mount brakets) then just have them droop down low like you would a carb vent. Nothing goes in the tubes but air. Your running the hose as a long straw so sand and stuff doesn't work it's way into the valve from the outside. TRICK #1 - Use clear hose and when it looks all black and nasty...it's time to clean the powervalves. TRICK #2 - After your first full season of powervalve riding... Pull the powervalves and try a set of block-off plates. Powervalves soften the hit of the pipe by blocking power. So if you want that light switch powerband to be brighter....take the dimmer switch off. LOL. 472 (72 bore)4 mill cheetah dune bike. Formerly with powervalves...Now fully ported and running block-off's. Quote Link to comment Share on other sites More sharing options...
NickisGod Posted April 18, 2010 Author Report Share Posted April 18, 2010 Hum, ya I was wondering why I received 4 230 main jets. That's just seems kinda weird to me. I remember when I bought my chariot bowls they had a brass nipple that would either be put in the bottom of the bowl or replaced with a plastic washer and screw to block it off. My logic was the pv would push air through the line pushing more fuel from the bowl and into the engine. Ill take your word for it though, but I'm gunna keep the pvs, my cub hit so violently I sometimes lost my grip on launches. Thanks bud Quote Link to comment Share on other sites More sharing options...
Modified RC Posted April 20, 2010 Report Share Posted April 20, 2010 It's just a breather hole so when the powervalve opens, the air behind the valve can escape. A PWK style main jet goes in it (mine were shipped with 230's)and you run a vent hose to it. press the hose over the jet. Then you run the hose down the frame stays (I tucked mine thru the front motor mount brakets) then just have them droop down low like you would a carb vent. Nothing goes in the tubes but air. Your running the hose as a long straw so sand and stuff doesn't work it's way into the valve from the outside. TRICK #1 - Use clear hose and when it looks all black and nasty...it's time to clean the powervalves. TRICK #2 - After your first full season of powervalve riding... Pull the powervalves and try a set of block-off plates. Powervalves soften the hit of the pipe by blocking power. So if you want that light switch powerband to be brighter....take the dimmer switch off. LOL. 472 (72 bore)4 mill cheetah dune bike. Formerly with powervalves...Now fully ported and running block-off's. Where did you get the block-off plates from? Quote Link to comment Share on other sites More sharing options...
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