siudit101
13.05.2021 8:23:58
40mm single carb
175 main
67.5 pilot
1 3/4 low speed
closed high more
See full version: Thread: 1997 GTI pop off pressure
40mm single carb
175 main
67.5 pilot
1 3/4 low speed
closed high more
Just did mine last weekend on my '97 gti and popoff is set at 23 and runs perfect.
read these and it should help you out. [links]
When I re-build carbs I always use the old spring unless it has some type of damage to it. download the free manual it has valuable info in it.[links]
Awesome. Thank you. I'll have a go at Saturday and report back.
The top fitting is basically the CSI, but the real function of that CSI is to allow air to escape from the waterjackets of the headpipe because it is the highest place on the engine and air travels upward in water.
The 787 has a CSI/Air bleeder on the very top of the exhaust manifold, the highest place on the 787 system, this is often backed up with a second CSI on some models that orginates on the top of the head ( 587-657 and 717 engines ). If my memory serves me, there is not a CSI fitting on the exhaust manifold of the 587-657-717, but it does orginate from the highest place on the exhaust headpipe, plus the one on the head. Never block these fittings off on a stock type motor and pipe. They must allow the trapped air to escape from the waterjackets in the engine and in the headpipe. [links]
How do you criss cross the 1/4 " hoses on the '97 XP pipe ? There is only one of them going to the midpipe ( 787 pipe ).
When the water enters the regulator at high pressure, the inner mechanism constricts the diaphragm to narrow the flow of water. This can reduce the pressure into a range of 50 to 80 psi, greatly reducing the stress on pipes and fixtures installed past the valve. Conversely, when the incoming water pressure drops, the diagram opens wider to allow more water to flow through the valve. An adjustment screw on the top of the regulator can be tightened to increase the tension on the inner spring (thereby reducing the pressure of the water as it exits the valve), or loosened to allow water to flow more freely through the valve (thereby increasing the outgoing water pressure). here
Most home plumbing fixtures are designed to work best at a pressure of about 50 psi (pounds per square inch), but it is not uncommon for municipal water supplies to enter the home with pressures as high as 150 or 200 psi. If such high pressures is present on a regular basis, the strain can eventually cause joints to fail, faucets and other fixtures to leak, and appliances to break down. Clothes washers, dishwashers, and some other household appliances have built-in pressure regulators, but a whole-house water pressure regulator still offers protection to those appliances, and it also serves to protect all the pipes and fixtures throughout the house. more
A water pressure regulator is a dome-shaped brass fitting that generally is found just past the main shutoff valve, where the main water line enters the house. It usually has an adjustment screw on top. Inside, a water pressure regulator has a variable spring-loaded diaphragm that automatically widens and narrows depending on the amount of water pressure entering the valve. more
A water pressure regulator (sometimes called a pressure-reducing valve, or PRV) is a specialized plumbing valve that reduces the water pressure coming into the home through the main water line. This valve brings down the pressure to a safe level before the water reaches any plumbing fixtures inside the home. Too much water pressure can cause many plumbing problems, so it is very important to keep the water pressure under control. Although it is not necessary for every plumbing installation, a water pressure regulator can be essential in situations where the municipal water supply enters the home at a very high pressure, or where water pressure is irregular.
When the system is protected by a water pressure regulator, there is less stress on the inner valves of appliances, faucets and shutoff valves will be less likely to leak, and fluctuations in water pressure are evened out. more
Let all of us know what you find out here
But be aware that there is also a RAVE valve on the rear muffler that acts as a pressure regulator. Out of curiosity, I also disassembled it to find that the spring had broken. When I went back to the dealer to get another spring, he told me that it too will cause performance issues. So you might unscrew the red adjusting cap and have a peek underneath at things. more
Yes, it does have a limiter built into the MPEM. I think the rev limit is 7200 w/o looking in my manual. more
I have the same ski. And also experienced similar, if not same, symptom on RPM after I bought it. I found that one of the RAVE valves on the head had burned through the plastic valve inside. So I guess mine was sticking also since I got the difference in RPMs from one instance to another. I replaced the bad parts in the valve and it was fine after that. I now get 6500-6600 RPM consistently.
Re: 1997 Seadoo GTX Wierd Problem. more