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98 spx 800 rossier pipe installation
- Thread starter Edge152
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No but I have memorized everything it says. What are you wanting to know? I've been tuning one of mine this week.
Edge152
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The line coming off the water pressure regulator on the muffler, do you route it back into the rossier pipe? Up by where the pipe and the y pipe bolt together?
The water regulator will not be used. The T in the incoming water line is still used it feeds the stinger fitting. I like a Jetworks flow valve there because you don't need to be dumping water in there until 3-4thousand rpm. This will help it jump right off idle instead of having to kick a bunch of water out first.
The pipe uses Mikuni SBN main (high speed) jets to meter the amount of water that is injected into the pipe. One is located in that stinger fitting (160-180 is safe) and the other is under the large fitting on the midpipe(90-120).
If there is another fitting on the pipe near where it bolts to the exhaust manifold then that was for electronic water injection. It helps with acceleration but is not necessary so you can cap it off or unscrew it and screw in a 1/8" NPT brass plug.
If your going to use stock carbs with the pipe they need to be re-jetted also especially if you are going to use flame arrestors. . Don't pay over $5 each for jets I usually get them off ebay.
The pipe uses Mikuni SBN main (high speed) jets to meter the amount of water that is injected into the pipe. One is located in that stinger fitting (160-180 is safe) and the other is under the large fitting on the midpipe(90-120).
If there is another fitting on the pipe near where it bolts to the exhaust manifold then that was for electronic water injection. It helps with acceleration but is not necessary so you can cap it off or unscrew it and screw in a 1/8" NPT brass plug.
If your going to use stock carbs with the pipe they need to be re-jetted also especially if you are going to use flame arrestors. . Don't pay over $5 each for jets I usually get them off ebay.
Sorry I was out of town last weekend. Your looking for total jetting of about 235-245. Buckshots like to be reverse jetted meaning that the low speed(pilot) jets are larger then the high speed(main) jets. I'd start with 120 lows and 115 highs.
Do you know what pipe jetting you plan to run?
Do you know what pipe jetting you plan to run?
The second option sounds better. I'd even go 120 pilot and 115 main. I would run a #65 jet in the return line and set pop off around 15psi.
No they are completely different pipes. That does not mean that they won't respond well to the same carb setup.
mandriva
Active Member
mandriva
Active Member
l
here this it true setting for psi single pipe 800
That pic is from me. I sold that one to a member here that came with those instructions. We found the instructions to be wrong in many areas. The pipe is completely different then a Rossier.
I don't have it I sold it with the pipe. It ended up having a lot of misinformation in it though.
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