To adjust the idle up or down, locate the idle stop speed on the carburetor linkage and use a screwdriver to lower it (counterclockwise) or raise it (clockwise) to within specifications.Shut the engine off. Any help would be greatly appreciated. For example... changing the low speed jet affects wide open fuel delivery.

The low speed adjuster has no tuning effect past 1/3 throttle and the regulator portion has no tuning effect past � throttle although it continues to control fuel supply.

Sea Doo Tool Rental! If the plugs appear black, use a screwdriver to adjust your low-speed jet screw counterclockwise by 1/8 turn. $44.95 $ 44. A too-lean mixture will cause starvation and hesitation; a too-rich mixture will load up the plugs and cause sporadic misfiring or flooding. Have carb soaking and found very small hose capped off with ziptie by cover where N/S are in? The port engine RPM's will surge between 4-7K at times. The thing with the boats, is that they already come with black fuel lines. Most owners can synchronize the low- and high-speed jets using the service manual and basic tools.Mount your personal watercraft on a trailer and take it to a convenient lake for proper test running. Sea Doo SP 580 587 1991-1996 Carburetor Rebuild Kit Base Gasket & Needle Seat. To avoid expensive electrical system damage NEVER jump start your ski with a running vehicle!! I have a 99 sportster with twin 717's. Forums. To submit your questions or ideas, or to simply learn more about It Still Works,

Although the service manual doesnt give you the h.s setting.i could ttell immediately after rebuilding it that it was running lean but i triple checked for fuel system and induction system leaks and and cant find anything.DrMarc... start your own post if you want a response.

An out-of-adjustment carburetor can cause misfiring, hesitation, stumbling or overall poor performance. I am afraid of stripping or breaking bolt/screw heads. Technical Info. What is the best way to remove them? 99 Genuine Mikuni Carb Carburetor Rebuild Kit & Base Gasket Seadoo GS GTS GTI Le SP 4.9 out of 5 stars 13 Proper carburetor setup and adjustment is essential for peak performance and longer engine life. 5.0 out of 5 stars 1. ?found this just want to confirm. The exceptions to the rule are the low speed adjuster and the regulator portion. The low- and high-speed jets on a personal watercraft determine the amount of fuel and air that enters the cylinder for combustion at different speeds. Turn the high-speed jet screw counterclockwise by 1/8 turn if the plugs have a white or cream color.Clean the spark plugs with alcohol and wire brush. For a better experience, please enable JavaScript in your browser before proceeding. Setting your pop off pressure on seadoo Polaris yamaha and kawasaki 00. Remove the spark plugs with a socket and check the coloration. If you follow the procedures above you should be able to get your ski in good running condition. Use a screwdriver to adjust the high-speed jet screw clockwise by 1/8 turn if the plugs appear black. Before you launch the craft, open the engine hood by unfastening the snaps. Most personal watercraft, such as Jet Skis or Sea-Doos, have carburetors that meter and atomize the fuel for combustion. Then again, if sitting up for awhile, then probably the needle/seat assy has some crud built in it, which would effect its performance. In this video, I replace the entire fuel system on this 1996 Seadoo GTI. Sea Doo Models 1988-2010 Sea Doo Paint Codes Seat Reference Chart SD Spark Plug Info 029/358 VTS Module Test Water Flooded 2 Stroke Wear Ring Removal. Run your watercraft at 3/4 throttle for two minutes, then at wide-open throttle. What is the best way to remove them? Refer to your owner's manual for their location. 2-Stroke Sea-Doo PWC forum 717 rotax carb removal from engine.

Hello Guest! Not say'n that the internal filters are not clogged, but it takes A LONG time ,for that to happen. Locate the low- and high-speed adjustment screws on the carburetor. I believe the filter on the carb is dirty.

Get it as soon as Thu, Aug 27. I know all bolts are loctited down. Genuine Mikuni Dual Carb Carburetor Rebuild Kit Sea Doo SP SPX GS HX GTS 717 720. Sea-Doo PWC. I have a 99 sportster with twin 717's.

Any help would be greatly appreciated. Start the engine and run your watercraft at half-throttle for five minutes. When trying to remove the mounting bolts to flame arrestor and other parts, they will not break free. Proper Tuning of Your Mikuni Carburetor. Get discount Sea-Doo Parts at JavaScript is disabled. Only 16 left in stock - order soon. Most owners can … Your engine idle should be within with your manufacturer's recommended setting, somewhere around 1,100 rpm. Seadoo 717 720 GS GSi XP GTi GTiLe GTS SPi Sportster Speedster Single Carburetor Model ONLY Jet Boat Factory Complete Mikuni BN40i-38-24i Carburetors. The only good way to adjust the carbs is to take the craft to the water, but before you do that though, you need to know the basics of a Mikuni carb … Shut the engine off or pull the ignition key lanyard.Remove the spark plugs with a socket and examine the end rims of the threaded part on the plug; they should appear medium to dark brown. When trying to remove the mounting bolts to flame arrestor and other parts, they will not break free. Lean air/fuel ratios are caused by air leaks or the fact that you may just need to richen the low speed adjusters to bring the ratio back into the normal range for wherever you have the idle speed set to. www.JetBoating.net. Setting the screw to 0 on a 717 will most defintely cause detonation and a hole through your piston in minutes FREE Shipping. Use a socket to remove the spark plugs and examine them for coloration. Hello Guest! I do not want to put much heat on them, especially with a full tank of gas sitting there.

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