For any further questions you may have regarding your Sleeper or Hammer kit, your are welcome to contact us directly for assistance. Under the loads of stock power output, a two year old crank might last another year. So, I need to get one and was wondering what my options are (if any) to make it as quiet as possible. While hull truing may sometimes improve this high speed handling situation, it cannot completely eliminate it. There are many aftermarket extended ride plates available to fit the 91-93 JS 550 . IGNITION The stock 550 ignition has no built in rev limiter, however it does have an unusually heavy flywheel that slows throttle response and acceleration. Something went wrong. The single 42mm carb has no troublesome linkage, and features the easy two screw mixture tuning. You're missing the plate that covers the PTO. VGC, OEM Kawasaki 440 550 JS SX Fuel Tank & Water Box Rubber Pads Dampers Set of 4, - Kawasaki Jet Ski 1982-1995 JS300 JS440 JS550 / 550SX Water Box Part# 49070-3702, Complete Rebuild Gasket Seal Kit Kawasaki Jet Ski Js550 Sx550 JS SX 550 91-95, 1986 KAWASAKI JS550 EXHAUST MANIFOLD / MUFFLER PIPE, - 1986 KAWASAKI JS550 EXHAUST MANIFOLD / MUFFLER PIPE, KAWASAKI JS HOT SEAT PERFORMANCE WATER BOX / EXHAUST MUFFLER, KAWASAKI JS 440 550 SX SUPERTRAPP PERFORMANCE WATERBOX, Kawasaki 440 550 js sx Kerker aftermarket exhaust pipe head chamber NEED WORK, KAWASAKI JS550 JS 550 550sx 440 Mariner KERKER Exhaust Pipe Expansion Chamber, Kawasaki Jet Ski JS440 /JS550 /550 SX Choke Cable NEW Vintage, Kawasaki 11009-3779 JS440/550-550sx Jet Ski Exhaust Manifold Gasket Aftermarket, Kawasaki Exhaust Gasket 550 JS js550 Coffman Factory pipe half pipe set kit, 1987 KAWASAKI JS550 EXHAUST MUFFLER-COMP WTR BOX, - 1987 KAWASAKI JS550 EXHAUST MUFFLER-COMP WTR BOX, Kawasaki 550 Jet Ski JS SX 550 Js550 Complete Gasket Seal Kit 1982-1990, Kawasaki JS-440-550 440 550 Jet-Ski Jetski Splined Prop Impeller Holding Tool, Kawasaki JS 300 300sx sx waterbox water exhaust lock muffler box housing, - Kawasaki JS 300 300sx sx waterbox water exhaust lock muffler box housing, USED - No Name 440 550 Aluminum Waterbox - Needs Weld, Kawasaki 300 440 550 JS Exhaust Pipe Cover 49107-3701, Kawasaki 440 550 JS SX Kerker Hi Performance Exhaust Pipe Stainless Steel Nice, Kawasaki Jet Ski Js 440 550 Sx Exhaust Manifold Gasket, - Kawasaki Jet Ski Js 440 550 Sx Exhaust Manifold Gasket, M-G 320514t Exhaust Manifold Gasket for Kawasaki Jet Ski JS440 JS550 440SX Jetsk, KAWASAKI JS440 JS 440 550 OEM QUALITY Exhaust Manifold Gasket Seal 11009-3023, OEM - Exhaust Tube Kawasaki JS550 82-85 - 92059-3041, NOS Kawasaki JS550 Jet Ski Muffler Bolts - Part # 92150-3776 - Obsolete - JS 550, M-G 330513t Exhaust Head Pipe Gasket for Kawasaki Js/Sx 550 Js440 400 Jetski, NOS Genuine Kawasaki Exhaust Pipe Gasket JS550 JS 550 1991 1992 1993 1994 1995, 4 Pack Kawasaki Motor Mount Js440 Js550 Sx550 Xir750, - 4 Pack Kawasaki Motor Mount Js440 Js550 Sx550 Xir750, Kawasaki 550 Jet Ski Js550 Js 550 Top End Rebuild Head Gasket Kit 1982-1990, - Kawasaki 550 Jet Ski Js550 Js 550 Top End Rebuild Head Gasket Kit 1982-1990, New Kawasaki JS JS550 JS440 JS300 Drive Shaft Oil Seal AC1799EX NOS 92050-501, Piston Gasket Top End Rebuild Kit Kawasaki SX JS 550 1982-1990 .25 mm Over, - Piston Gasket Top End Rebuild Kit Kawasaki SX JS 550 1982-1990 .25 mm Over, NOS Genuine Kawasaki Muffler Exhaust Pipe Gasket JS550 JS 550 91 92 93 94 95, Kawasaki 440 550 JS SX High Performance After Market Exhaust Manifold, Kawasaki JS 440 550 JS Side Exhaust Output Hull Fitting Tail Pipe 59156-506, New WSM Exhaust Gasket 1976-1995 Kawasaki Jet Ski 400 500 JS SX 550, KAWASAKI JS550 JS 550 SX EXHAUST PIPE GASKET GENUINE OEM, 1986 KAWASAKI JS300 EXHAUST MUFFLER / WATER BOX, NEW KAWASAKI NOS 11009-3779 EXHAUST MANIFOLD GASKET JS550 JS440 JS400, Kawasaki 300SX/JS300/JS440/JS550/550SX Performance Steering Nozzle, OEM - Exhaust Hose Waterbox Kawasaki 440 550 - 92059-3722, KAWASAKI JS550 JS 550 Exhaust Head Pipe Gasket Seal 11060-3730 GOOD QUALITY, Kawasaki 440 550 JS SX Exhaust Manifold in good condition, Kawasaki 440SX 550SX JS Rear Exhaust Hose Tube Hanger Hook Stainless Steel, OEM 86-95 Kawasaki X2 650SX JS650 SX650 Exhaust Waterbox Water Box, 1985 KAWASAKI JET SKI 550 JS550 MUFFLER EXHAUST PIPE SILENCER 18001-3008, OEM - Exhaust Hose Upper Exit Kawasaki JS 400 440 550 - 92059-528, Kawasaki OEM Muffler Damper 1984-1985 JS550 Jet Ski # 92075-3701 NOS- NEW, KAWASAKI JS440 JS 440 550 OEM QUALITY Exhaust Head Pipe Gasket Seal 18067-502, 1989 KAWASAKI JET SKI 550 SX JS550 EXHAUST HEAD PIPE MUFFLER HEADER 49062-2053-Y, NOS Kawasaki Jet Ski Band, Muffler # 92072-511 JS550 JS440 JS300 + More PP907, Kawasaki Jet Ski 550 JS Coffmans Half Pipe Climax Exhaust Gasket Set NEW, Breather Head; Elbow-Water Hose; Kawasaki JS440 JS550 NOS : 52014-3002, KAWASAKI OEM EXHAUST GASKET JS550 1986-1990 11009-2461. These early housings were adequate for stock machines, but fall short badly for high output use. Cylinders and heads are typically prepared as matched pairs only to assure that you have the proper squish clearance and compression ratio for the quality of gasoline that you intend to use. For the best experience on our site, be sure to turn on Javascript in your browser. These cylinder and head specifications play the key role in determining the amount of overall power that the engine can make as well as the quality of fuel that you must use. (SEND head, cylinder, exhaust manifold, carb, and pump exit nozzle), CARB BORING AND INTERNAL CIRCUIT MODIFICATION, COMPLETE PUMP BLUEPRINTING & SCOOP GRATE MATCHING, SCOOP GRATE TOP LOADER TYPE (ROUGH WATER USE ONLY), *prices subject to change based on manufactures pricing. I bought an old 1985 js550 a couple of weeks ago and have got it running.. trouble is the previous owner removed the water box. We strongly recommend that you read this entire pamphlet before deciding which modifications are right for you and the kind of riding you intend to do. A forum community dedicated to PWC owners and enthusiasts. We believe the tiny increase in peak water speed was not worth the loss of overall reliability. Kawasaki JS550 js550SX JS 550 JS440 Kawasaki 650sx ignition restorations 650 X2 JetSki Solutions uses only the highest grade materials for each application in our remanufacturing processes. Weight: 6 lbs: Manufacturer: Unknown. View cart for details. All rights reserved. For customers who prefer to prepare their machines with a dual or oversized input systems, we can also prepare the special exit plumbing needed to make those systems work. UPS weight limit makes engine shipping practical and affordable. ASSEMBLY INFORMATION All GROUP K kits are accompanied by a step by step instruction pamphlet that outlines the assembly, break in, fine tuning, and maintenance of your kit. So the West Coast has been in three times. The price of these aluminum charging flywheels would easily be worth the performance for a racer with a Hammer 105. The intake mesh of this element is so high in the engine compartment that it is exposed to very little water spray. Number of bids and bid amounts may be slightly out of date. so first up is that it wont start lol, yea, go figure. 88 JS550. New customers can use coupon code USED10 at checkout for 10% off your first order of Used, New Old Stock, or OEM parts from Watercraft Werks! By simply disconnecting one wire in the electrical box, the limiter can be eliminated. The porting mods used in all our 550 kits is the result of many months of performance and wear evaluation testing. High compression head. Under the loads of stock power output, that four year old crank might last another two years. Surprisingly they offered only slight increases in overall performance (about 1 mph). I bought an old 1985 js550 a couple of weeks ago and have got it running.. trouble is the previous owner removed the water box it's flippin' loud, far too loud for me. Just beginning to look for a new/used water box (87 js550) - . Piston clearance inspection is available on request, and cylinder boring (using pistons furnished by you or us) is available in oversizes of .020and .040. Sealing on an area that narrow is easy on the low compression/low operating temperature stock engine. Air leaks, not engine modifications, are by far the number one cause of 550 piston seizures. All our 550 kits require the disabling of the stock rev limiter device, however the design of our modifications insures that your 550 will not need to be revving to make the bulk of its power. If you intend to use a 440 style manifold/pipe combo, we recommend only the Coffman Classic pipe and manifold. We recommend that you replace it with a 440 crank (known as a 3011 crank because those are the last four digits of the Kawasaki part number). EXHAUST SYSTEMS While the Sleeper kit utilizes the complete stock exhaust system, the 550 Hammer kits are intended to be used with aftermarket exhaust components. HEAD GASKET SEALING The amount of head gasket sealing area between the cylinder bores and the through stud holes in the 550 cylinder is very narrow (even narrower than the 440). (Your stock intake manifold must be bored slightly to accommodate the larger throat diameter of the 42mm carb). Contrary to rumor, the stock waterbox yields very good overall power levels in all pump gas applications. 06-13-2017, 05:17 PM Can you get rid of the water box and go straight pipe on a rear exhaust 550? Since the choke plate screws so commonly loosen and fall down into the engine, replacing the choke mechanism with a primer system is recommended for all 550 Hammers. AIR LEAKS The lower end of your 550 should be totally air tight up to 8 psi. KAWASAKI JET SKI JS550/440 EXHAUST CLAMP WASHER (4) NOS! Peak waterspeed 49.8 mph. INTAKE SYSTEM The reed valves used in the 550 are smaller in size than the reeds commonly used in most after market 550 reed cylinders. The engine compartment of your finished 550 Sleeper will look 100% cosmetically stock. I have a 1987 js550 full mod.. bigger sbt pistons, full westcoast pipe, west coast exhaust manifold, marnier waterbox, light weight flywheel, pjs dual cooling head, ocean pro nosel, solas impeller, bn44. I can't thank some of you enough. UPS weight limit makes engine shipping practical and affordable. However the added rpms and power loads of even a mild modification can easily be the death blow to a well worn crankshaft. I know it will be kinda loud and I want to reduce that. I was reading more and you also run the risk of serious overheat from uncooled exhaust so you are correct in not wanting to remove the water box. The 550 pump delivers the force of thrust to the hull through the pump case mounting points, not the driveshaft ( like a 440 style pump). TJ that 550 OEM H20 box is going to rob a ton of power from that 650 motor. JavaScript seems to be disabled in your browser. Seeking is the point at which the handlebars no longer control the true direction that the boat is traveling in. These mufflers permit the engine to pull easily into the higher rpm ranges while maintaining tolerable increases in sound level. Why would you want it quite?? The Coffman systems have been designed specifically for the 550. Be sure to include your return address and day phone information in case we have any questions regarding your order. Here again, the relatively milder compression ratios used with the Group K kits is an added safeguard against head gasket leaks. Our 550 engine modification kits are as follows: STD KAWASAKI JS 550 Peak waterspeed (sea level, flat water) '82-'85 35.2 mph ; '86-'90 36.5 mph SLEEPER - Intended for the average recreational rider, this engine kit consists of modification to existing pieces only. HEAD GASKET SEALING The amount of head gasket sealing area between the cylinder bores and the thru stud holes in the 550 piston port cylinder is very narrow (much narrower than the 440). This safely permits the use of a lighter driveshaft and eliminates the need for a bulkhead bearing support. The reliability of the total loss ignitions weve tested has been so poor that we do not recommend them to anyone for applications. This literature will give background information on all of our modifications for the piston port JS 550 models (82-90) as well as some recommendations for the best aftermarket bolt on parts. and our In like, the 92 octane kits should never be run on 87 or 89 octane regulars. We strongly recommend that you read this entire pamphlet before deciding which modifications are right for you and the kind of riding you intend to do. Newer engines pass this test with no problems. 1996 2023 Group K. All Rights Reserved. 09-02-2019, 09:21 PM. Our 550 reed engine modification kits are as follows : STD KAWASAKI JS 550 Peak waterspeed (sea level, flat water) 91-93 37.8 mph, SLEEPER Intended for the average recreational rider, this engine kit consists of modification to existing pieces only. TOP END MODIFICATION All GROUP K 550 kits include cylinder porting. Strong low speed power is needed to permit smooth controlled turns, as well as getting heavier riders up on plane. CRANKSHAFT The stock 550 crankshaft is a reasonably well built unit. Whatever spray it may be exposed to will not clog the all stainless steel screen element in any way. Surprisingly, they offered only slight increases in overall performance (about 1 mph). CRANKSHAFT The stock 550 crankshaft is actually a reasonably well built unit. ^^that seems to be the general consensus the more you mod the more the box effects performance,but on a stock to mild 550 your not gonna notice a difference, mariner boxes are fairly quiet when wet, but dry that thing is LOUD. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . For riders who run their 550 very aggressively in rough water conditions we recommend the top loader type scoop grates. Modifying the piston port 550 with a keen awareness of these weaknesses is what permits the construction of an effective yet reliable modification package. All of our testing with 550 reed engines has shown that competitive and reliable horsepower levels can be had without excessive compression, or spinning the engine into the twilight zone rpm range. An aftermarket scoop grate will help to maintain a better supply of water at the front side of the pump. We recommend that you replace it with a 440 crank (known as a 3011 crank because those are the last four digits of the Kawasaki part number). 3671 North Dixie HighwayPompano Beach, FL 33064 USA, Phone: 800.241.4544 | 954.785.2684Email: info@rivaracing.comHours: Mon-Fri | 9a-6p EST/US. EXHAUST SYSTEMS While the Sleeper kit utilizes the complete stock exhaust system, the 550 Hammer kits are intended to be used with after market exhaust components. the raspy mettalic sound of a aluminum waterbox tends to piss people off. The intake mesh of the stock arrestor is so well guarded in the engine compartment that it is exposed to very little water spray. Carb throat boring the 44 has consistently proven to result in poor starting and poor low speed responsewe do not offer it or recommend it. js550. Designated trademarks and brands are the property of their respective owners. For a better experience, please enable JavaScript in your browser before proceeding. Subscribe to get the latest! 06-02-2010, 02:13 PM. Most orders have a 1-3 day handling time. Strangely enough, the 3011 crank is dimensionally identical to the 550 crank, but made from much better materials. PUMP & IMPELLER Since all the Group K engine kits are built to produce a wide powerband with strong low end power, the existing 550-style pump is no disadvantage whatsoever, and it works excellent at all waterspeeds. Both Hammer kits yielded the best low end and mid-range power using the Coffman Climax pipe (fits on 86-93 550 manifolds). Peak waterspeed ( flat water) 45.8 mph, HAMMER 92 (octane) Intended for the serious recreational rider, this 550 kit shares many of the Sleeper kit mods along with a cost conscious selection of bolt on parts. Kawasaki 440 / 550 / 650 Stand Up Jet Ski Water Boxes EZAZ PI 1.52K subscribers Subscribe 64 12K views 6 years ago Here we'll discuss what functions the water box serve and take a look at a few. Dismiss. There's a pretty good chance that most car guys are also airplane guys, and vice versa. 84 js 550 butchs pipe mariner waterbox skat trak impeller 4 degree bars ocean pro skegged plate toploader odi grips double pole springs nothing flashy buts its only the first year more to come definately. THANK YOU pwctoday community for all of your friendly knowledge. The 150-lb. Furthermore, the increased rpms of the radical porting caused much higher operating temperatures and drastically reduced crankshaft bearing life. Not completely sure of how the system works from end to end, but ( and different skis could be plumbed completely differently ) , if the . Personal Watercraft Impellers & Components. I have a js550 with an sbn44. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. I have a Westcoast exhaust, manifold, and waterbox. 1996 2023 Group K. All Rights Reserved. Everything is there but none of it is together. item 2 KAWASAKI JS-300-440-550-SX Jet-Ski hood Seal engine motor COVER GASKET In Stock KAWASAKI JS-300-440-550-SX Jet-Ski hood Seal engine motor COVER GASKET In Stock. Shop Today! We ship USPS Priority Mail (1-3 business days), with free shipping on orders over $200. Engines intended for moderate recreational use can easily live with .004-.005 set-up. The biggest performance problem of the standard JS 550 is the lack of low speed acceleration. So, I need to get one and was wondering what my options are (if any) to make it as quiet as possible. Copyright 1995-2023 eBay Inc. All Rights Reserved. Welcome to Watercraft Werks! As a result we recommend dual carbs to no one, and we do not use them on any of our piston port 550 kits. COOLING SYSTEM All of these 550 kits can operate reliably with the single input cooling system along with our cooling system upgrade. For recreational use, the Fischer brand waterbox also worked well. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . Our 550 engine modification kits are as follows: STD KAWASAKI JS 550 Peak waterspeed (sea level, flat water) 82-85 35.2 mph ; 86-90 36.5 mph, SLEEPER Intended for the average recreational rider, this engine kit consists of modification to existing pieces only. In the past, cylinder porting has received an undeserved reputation as a modification that causes a loss of reliability and engine life. We also do complete engine and pump assemblies for customers who want a finished unit ready for installation. Speeding up throttle response in this way has diminished the need for lightweight flywheel total loss ignitions. The opening on the stock flame arrestor also matches perfectly to the throat opening of the new 42 Kiehin carb. All GROUP K ported cylinders are decked and then stone finished to assure a perfectly flat sealing surface. This air leak can make the fuel mixture lean enough at high rpms to cause a piston seizure. 20 results for js550 waterbox Save this search Shipping to: 98837 Shop on eBay Brand New $20.00 or Best Offer Sponsored See search results that fit your vehicle Select Vehicle Kawasaki 440 550 PJS waterbox JS 550SX Vintage Jet Ski Performance Exhaust Pre-Owned $200.00 or Best Offer +$13.25 shipping 12 watchers Sponsored Hydro-Turf may take up to a week. The store will not work correctly in the case when cookies are disabled. Dual 38 carbs are commonly used on modified race boats because they offer better overall throttle response than a heavily modified 44 Mikuni carb. Our enhanced specifications and processes are designed to eliminate all known failure modes in each specific part or sub-assembly. In fact, the free floating bulkhead bearing system in the 550 SX is so flexible, it virtually eliminates the need for shimming the engine and pump altogether. As a result, no bulkhead bearing support is needed (like on all 440s). Free Shipping on orders over $150 in the USA. I haven't seen one, seems like everyone I know with a 550 has westcoast mariner or coffman's 1995 FX-1: Pro-Tec chamber~Skat swirl~Pro-Tec plate~Blowsion Destroyers, All Material Copyright 2009 Watercraft Superstore. Piston clearance inspection is available on request, and cylinder boring (using pistons furnished by you or us) is available in oversizes of .020and .040. There are many aftermarket companies that build high rpm and high compression 550 race boats for their sponsored team riders. dual resonator mufflers. A finned ride plate can give added stability at high speeds. (set-up clearance is .0045-.005 ; wear limit is .009) On any racing or high output recreational packages we recommend set-up clearances of no more than .006. Our full catalog of parts can be accessed from the above menu. Our pump blueprinting makes the 550 pump hook up as good (if not better) than the best 440 pumps that we have tested. The longer plate reduces porpoising (the nose of the jetski bouncing uncontrollably) and improves high speed stability. Car & Truck Safety & Security Accessories, Mariner Waterbox Kawasaki Js440 Js550 550sx Jet Ski, item 1 MARINER Waterbox Kawasaki Jetski JS440 JS550 550SX, MARINER Waterbox Kawasaki Jetski JS440 JS550 550SX, item 2 KAWASAKI JS440 JS550 550SX 300 JS jet ski EXHAUST HOSE WATERBOX 550 440 JETSKI, KAWASAKI JS440 JS550 550SX 300 JS jet ski EXHAUST HOSE WATERBOX 550 440 JETSKI, item 3 KAWASAKI JS440 JS550 JETSKI JET SKI RIGHT / ANYWHERE SIDE EXHAUST CONVERSION, KAWASAKI JS440 JS550 JETSKI JET SKI RIGHT / ANYWHERE SIDE EXHAUST CONVERSION, item 4 Kawasaki JS-440-550-sx Jet-Ski Handle-Pole Shock Hood PAD w/ 3m Glue In stock, Kawasaki JS-440-550-sx Jet-Ski Handle-Pole Shock Hood PAD w/ 3m Glue In stock, item 5 kawasaki js 440 550 jet ski nose brace, item 6 KAWASAKI JS440 JS550 550SX 300 JS jet ski EXHAUST HOSE WATERBOX 550 440 JETSKI, item 7 MARINER Waterbox Kawasaki Jetski Js sx 300 440 550 jet ski muffler exhaust, MARINER Waterbox Kawasaki Jetski Js sx 300 440 550 jet ski muffler exhaust, item 8 KAWASAKI JS440 JS550 550SX 300 JS jet ski EXHAUST HOSE WATERBOX 550 440 JETSKI, Honda AQUATRAX Custom Open Straight Through Exhaust Pipe System R-12x, 5.0 out of 5 stars based on 3 product ratings, SeaDoo 787 800 Exhaust Pipe Gasket GSX GTS SPX XP Challenger Speedster 290931500, 5.0 out of 5 stars based on 8 product ratings, Kawasaki 88-93 Jet Ski 650 SX 88-94 X2 Exhaust Pipe Outer Coupler Muffler Joint, 5.0 out of 5 stars based on 1 product rating, Honda AQUATRAX Custom Open Straight Through Exhaust Pipe System F-12x, SEADOO 951 Exhaust Mounting Bolts Hardware Pipe to Manifold 947 GTX XP GSX, 5.0 out of 5 stars based on 4 product ratings, 5.0 out of 5 stars based on 5 product ratings, OEM 2022-23 Yamaha FX WaverRunner Speaker Mount Adapter Kit F5G-H81M0-V0-00, Yamaha 62T 760 Exhaust Manifold Gasket 701 64u 64x Waverunner Wave Raider HD, 290950253, 420950253 Exhaust Pipe Gasket ALL 1990-2001 580 587 650 657 717 720, Sea-Doo PWC and Jet Boat 947 and 951 Carbureted Engine Exhaust Rave Piston, Sea Doo Exhaust Manifold Gasket 785 787 800 XP 1995-1997 95 96 97 290931480, WSM Seadoo 800/951 Exhaust Hose 1998-2002 GTX RFI GSX LTD LRV RX Used, Set of 2 SeaDoo Exhaust Manifold Gasket 720 Challenger, Explorer, Speedster / SK, Boat Engines and Motors for Kawasaki Jet Ski X2, Boat Engines and Motors for Kawasaki Jet Ski Ultra 150, Boat Engines and Motors for Kawasaki Jet Ski 650 SX.
Volkswagen Transporter Owners Club,
Ford Enthusiast Forum,
Salon Shahin Stylists,
Articles J