That one looks pretty clean on the outside. Was a compression test done? the mystery is solved. No gree gooze, Yeah, I agree with Ck. We are using the regular key. it's really weird. From your original post, it sounds like you just bought this ski. JJinSC Well-Known Member May 17, 2020 #2 You are using an out of date browser. Always glad to help! You are certainly cavitating. about our model specific steering systems and the different upgrades available for them. !. You're telling me pumping the throttle while not running will spray gas into the carb through the a pump nozzle??? I havent been to the lake to look at it but he's putting new plugs in tomorrow when he goes. check out the. 07-22-2013, 12:23 PM #4 MattL Gauge. All Material Copyright 2009 Watercraft Superstore. Also if you did the test did the carbs hold pressure. Take air box off the carbs. Bossatsleep2 4 yr. ago. View full details. All times are GMT-5. Mine completely unlocked after 8 hours. You are using an out of date browser. I ordered a wear ring this morning. Is the engineer revving at high RPMs when only doing 10mph? I have also gotten under the machine and the impeller and wear ring still look brand new so im not thinking it is anything mechanical.. Any help is appreciated. The regular key was only allowing it to go in the 40s (can't recall exactly) and we took his ski to the dealer and they reprogrammed the key and he was able to get full speed out of it again. Seemed to run fine when put away although it was only run on a trailer. They are also booked out 6 weeks. Do not let it sit untill that is done. The gas is still from when I winterized it and is only 1/4 tank down. Clogged Jet Pump/Cavitation. No. 2000 Seadoo Islandia with Mercury M2 V6 240hp EFI engine Problems! It will start up fine, but once it gets above 10MPH, like you are goin to cruise on a plane, it's like it's not getting gas. var sc_invisible=1; My wife and I just got a new 2019 GTI SE 155. I have no idea what the accelerator pump nozzles look like. So he could only barely putt it across the entire lake to our mooring. Spark Plug Issues. Hopefully, I should be back in the water by next weekend. For a better experience, please enable JavaScript in your browser before proceeding. https://jetboaters.net/threads/basic-information-about-the-various-options-from-cobra-jet-steering-llc.16857/, BUY DIRECTLY FROM THE MANUFACTURER AND RECEIVE OUR. Warranty. Unless the carb kit came with an accelerator pump diaphragm then no I didn't replace it. All the small engine work I've done over the years I would assume it needs a carb cleaning. i cant imagine losing a whole 15 mph due to altitude. It has no power. You may have toasted a piston. Would not go past 20 mph. Try pumping the throttle in slow increments to get past big. This is our first jet ski. I bought these skis used and apparently it had been a long time since it was replaced. Sea doo spark. After getting out into the river it just wouldnt go I realized something was wrong. i think i took the accelerator pump apart i really dont remember though. Lol that is not the case. I know it limits itself during the break-in period. I checked it against my other Seadoo that works perfect and has no noticeable gap at all. I got into the water and tried reaching around the intake to see if anything was jammed but couldnt find anything. Low Oil Pressure. Replace fuel selector valve and water separator filter. looks pretty similar to mine. One name , 5 us patents 6561858, 6702630, 8425269, 10259552 and 10843778. Full throttle would kill it. It comes with a powerful supercharged 230-hp Rotax engine and it is now equipped with the exclusive LinQ Quick-Attach System for cargo and an optional 100W Bluetooth Audio System. Well, on the GTI 90 2018, yes, the computer controls the break in period. Check your carbs and flame resistant filters and dry them. Thanks in advance for your help. Cobra Jet Steering: Think CJS for the BEST Jet Boat Steering mods and EZ Locks. So it sounds like the carbs and accelerator pump have to come off. All Material Copyright 2009 Watercraft Superstore. Checked fuel bowl/seperator. var sc_security="4bca0001"; There is noticeable gap on this one but it is no more than it had after the first time I rode it after replacing the prop and wear ring. I wasnt sure if this was normal for the break in period or not. My dad put like 10 gallons of 93 octane in it with some seafoam and star tron and put it away for the winter after fogging. Choose your colors, trim and package options to price out your desired Sea-Doo model with the app! Did the dealer even take a look at it? Idles and stars fine. So i guess im wondering do i need to be putting a high altitude impeller on? You should experience variable speeds (like speed drops or max speed of 30 mph). It may not display this or other websites correctly. Jet ski acceleration problems are usually caused by one of the following issues: Low RPM Mode is Active/Learning Key Used. There could be many reasons why your Sea-Doo won't start. See my follow-up. It revs up and the RPMs climb but the ski doesnt move above 5MPH. I have done all the basic maintenance and winterization myself, hasn't been into service since I bought it (bad idea, I know, was trying to save $). Went out twice last weekend and ran like a champ for several hours each day. Only going 5mph at full throttle isn't your accelerator pump. It was stored covered in a heated garage. This is our first jet ski. I just bought a 97 seadoo without taking it out on the water. For a better experience, please enable JavaScript in your browser before proceeding. If not, there are plenty of threads here advising what should be done on these old skis. Using a mirror look down the throats of the carbs as you squeeze the throttle. The wear ring was in pieces, completely shattered! He posted the picture while I was replying. I let go of the gas, the engine dies. It may not display this or other websites correctly. Never sat in water. Please consider Signing Up so that you can enjoy all the features and offers on the forum. I wouldn't use Seafoam in it but that's not your problem. but would that have any negative effect ??? For a better experience, please enable JavaScript in your browser before proceeding. Had to get a new top end. Jet skis have an average top speed of 50 mph, but can go 65 mph. A combination of low pop off pressure and air leaks on the pump side of both carbs. It restarted then repeated died about 2 min later. They don't even mess with doing a top end anymore. But it was going to be around $2000 at the dealership. The springs and guillotine look fine to me but I am far from knowing what to look for. Thanks for the input, I will check tonight when I get home. With most boats, it isn't necessary to have ear protection while you're out on the water. No warning lights come on on the display either. 2008 Speedster 150 Supercharged WOT RPM and Speed. Before doing anything, do a compression test to confirm what shape the motor may be in and what you have to work with. Any ideas on things to check? So do your research all aftermarket steering systems are not alike. i said. What lines could possible be mixed up that it ran fine on the trailer but not in the water? great! SeaDoo Year 1997 Boat Model Other Boat Length PWC Apr 12, 2017 #1 My jetski ran fine for a few hours yesterday, then suddenly lost power. Also, replace inline oil filter. First suspect would be the wear ring. Any thoughts???? Plug wires are new. If anything below the waterline breaks, it's the bilge alarm that will alert you and buy you time to address before it's too late to enjoy the rest of your day with minimal expense to repair. I didn't want to leave fuel in it over the winter but he insisted. Its brand new had 0H0M when put into the water. You must log in or register to reply here. UPDATE: so i took it into the dealership this morning and they were reluctant to help me claiming that because i live in Salt lake and the lakes I got to are at 4000-6000 MSL the high altitude is bringing the speed down to 45 is all and thats normal. Fule lines are the old gray ones but all look clean and are in great shape. It could, water cannot compress so the first thing should always be to pull the plugs and crank with them out to clear the water. Where I launched there are not rocks or weeds just fresh water. Switched users on the fly, and it stopped accelerating above 10-15 MPH at full throttle. Starts no problem and is running great not missing at all but still not going any speed. Had to tow it back in to dock. Now that you have flooded the cylinders I would do a Compression check. Written by ppguide Boat Jet Ski. Max RPMs were 7800 and max speed of 68 mph, but starting last week it will not rev past 6800 with max speed of 62 mph. Internal carb filters clean? Might want to clean connecter at MPEM. Same suggestions still apply. If it is only going 10-20mph at high RPMs that sounds like cavitation. While in the no wake zone I noticed it wouldnt really get going. Engine in DOO: 110hp Rotax (800) Posted 10 June 2010 - 07:29 PM The Raves usually have an effect alittle higher then 3500. It may not display this or other websites correctly. document.write("