Red head on PSI pipes

C

cheapsx

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Joined
Feb 4, 2009
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28
Location
Lake Pleasant NY
Is anyone running psi's on there red head? I have a set and have been fighting with jetting right along. I had direct oil injection on it running 40 pilots in it and couldnt lose the rich bog. Today I ditched the direct oil injection went back to stock pilots and started with psi recomended jetting specs. I am now down to 1.5 turns out on the fuel screw and still see a bog when snapping the throttle open once in a while a pop or two out of the exhaust. Popping out of the exhaust is rich is it not? Its better at 1.5 turns instead of the three I started at. I keep leaning this thing to make it better but it seems like no one else has theirs this lean to run right. What am I missing? Air box is stock, carbs clean, everything seems to be in proper order. Any ideas?
 
I run Power Inc end dumps on a 01 Sxr700 and I run stock 45 pilots at 2.5TO.
On these motors and most others a pop out the exhaust around ilde usually
is lean. I had a low rpm bog when i first ran this set up and used larger pilots at first and they helped but fuel milage suffered. I went back to stock pilots and raised egagement slightly and now it is perfect.
 
When it pops its after engagment say around 5000- 5300 as you are getting going. My other thought is that it's to fat on the needle as it is going from pilot to needle. I say that because after a trail ride when you come to a lake it takes a while to clean up and go. If you come off trail hit the gas on lake it is sure to stummble and take a while to clean up.
 
How long for piston to color up I have 2 rich ones and 1 ok one. Good links but I have seen them and read them. I am just baffled that it is this rich on the bottom when everyone needs more fuel. I started at 2.5 turns and am down to 1.5 it seems better but I still cant beleive I need to go leaner. Where are your needle 700triple?
 
do you have the stockblaster pipes or the modblaster pipes



stockblaster jetting for 0-3000 ft as follows


pilot 45
fuel screw 3 turns
needle 3rd-4th-4th pos.
main jet 142.5 142.5 142.5

nozzle q-8 q-4 q-4


psi pipes like fuel.. you r way lean !!!
 
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could your reeds or stator be weak??? I used PSI settings on mine and it has always ran great for the last 5500 miles............sold not though
 
The ststor is the only thing I have not checked. Once it overcomes that blubbery spot it runs fine. I started at the psi recomended settings and it seems way to rich.
 
if your running the reccommended psi specs then you have another issue. those specs. are pretty reliable for the 97 sx. sounds more like a reed problem or float problem to me.
 
ya I'm with Yammy I had the same issue last year floats were out a lot, all in one bad day of hard pounding jumps and hills.
 
Reeds are good. I said I started at 2.5 TO on fuel screw, I thought it was rich. I have since got pissed and went to 2.75 TO and dropped the needles .5 position. It seems better. Will try 3 TO today. Can you get 47.5 pilots instead of 50's? The thing I don't understand is why everything was so fuel soaked with it leaned out. Possibly being so lean on the fuel screw was making the needle dump more raw fuel? I bought this sled with a bad crank bearing from a friend. He claimed it always ran strong. There were no signs of it being to lean and he ran with the stock jetting on thse pipes. I have changed nothing it just doesn't seem it should be that different. Maybe it ran like shit for him and he didnt care.
 
Maybe. Because the first time i put theses pipes on my '00 i havent changed anything unless the clutching and it always ran very good. In the same time i was running the '00 i brought my 98 that already have theses pipes on it and that was running bad. I put alot of hours working in the carbs to finally discover that my trouble was the guetted airbox. If i was you i would stay with the stock specs, check the float level and after your are 100% sure the carbs and intake system is correct i would start looking another place.
 
Went with position 3 on each needle 13/4 TO on fuel screw 45 pilots. Best so far. from a standing start barely noticable bog. From a 15 - 20 mph roll on little bog bang out of pipe and you are off. You know we talked about these reeds and i have looked at them a few times. They all lay flat no chips or breaks but there is a healthy amount of oily fuel residue in the air box. Other than a visual inspection how do you know if they are bad? It is running the best it has yet but I know it's going to be a fuel whore.
 
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