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In 2002, Yamaha released the GP800R. About Compression Both of our GP 800 kits include modification of the stock cylinder-head. It had the same hull as the GP1200R, which was around 3 inches longer and an inch wider. Micro-Start XP-1 by Antigravity Batteries, Passing Lamps with Integrated Turn Signals mount, Passing Lamps with Integrated Turn Signals. RIVA Racing is the #1 source for watercraft performance & OEM parts for Yamaha, SeaDoo & Kawasaki PWCs worldwide! This means that the GP800R offered 120HP and a top speed of around 55mph, just like its predecessor. Where America goes for Yamaha Cruiser, Sport and Offroad motorcycles, Sport and Utility ATVs, Snowmobiles, and Watercraft, We have them all from From YZF-R1 Motorcycles, YZF-R6 Motorcycles to Yamaha Apex and Nytros. If youre not familiar with all-terrain vehicles (ATVs), jet skis, snowmobiles, or utility-terrain vehicles (UTVs), its difficult to know what the right holiday All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. Just like their predecessors, both R model got the same hull and features, but with different engine options. Porpoising is when the WaveRunner continuously bounces up and down in porpoise-like movements. Before you make you purchase, never skip the water test and make sure you check the compression in the cylinders. . Weve Got them all , We can help you get a new Yamaha Exhaust, Yamaha seat, perform Yamaha performance increases, Yamaha racing parts, or even an new Yamaha carb or yamaha clutch. If e-mail is unavailable to you, mail your request to: Yamaha Sports Plaza, 22455 NE Halsey St., Fairview, OR 97024, 22455 North East HalseyFairview, OR 97024 The new GP series was introduced in 2007. GP800 WaveRunner Aftermarket Apparel & Gear. To further reduce porpoising, we recommend the R&D ride plate. Why? This is a typical question of many buyers, and the answer is that it depends. This thin plating also makes for a much more conductive-friendly path for the heat of the piston to get to the water-jacket. When it comes to choosing quality parts and accessories for your Yamaha WaveRunner GP800R, you can rely . The stronger signal of this modification greatly improves the carburetors ability to self adjust the fuel mixture for changes in altitude and air temperature. That is, If you have the head modified for the Swift Kit, that head will have to be re-cut again if you later decide to upgrade to the Sleeper Kit. Please go through the entire list and find out the right parts for the GP800. 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 can use (92 octane unleaded in this case). Free shipping. Sadly, the greater weight and the same performance resulted in a worse power-to-weight ratio. We know that you need reliable products that will stand up to the punishment of tough environments. Instead of an aluminum cylinder with a thick iron sleeve, the aluminum cylinders of the GP8 have a thin layer of hard plating for the piston to reciprocate in. When parts must come from the manufacture's warehouse, additional time for fulfillment may be required. We know that you need reliable products that will stand up to the punishment of tough environments. OVERSIZE PARTS AND PACKAGES. All we care about is what is actual stock production rpms. We finally obtained a showroom production 99 GP 800 for our testing. The Swift Kit - This kit is a small collection of the most effective bolt on parts for your GP 800, along with modification of your stock cylinder head. Lets be honest, every PWC has its strengths and weaknesses, and GPs are no exception. CANCELLED ORDERS. Other services we perform include valve seat and valve guide replacement, along with cylinder head porting and flow-bench testing. Head Sealing During our testing we found the head gasket sealing surfaces of the GP8 to be somewhat sensitive. Privacy Policy Franais. This is a solid 100 rpms under target with no apparent loss of radar speed. Orders usually ship from our shipping center the same day as the order is fulfilled. Easy installation with noticeable results. OEM Parts Diagrams However there does seem to be a huge (and unexplainable) difference in the peak operating rpms of these machines. An added side effect of this modification is improved throttle response and improved ease of tuning. Call us for a quote: 480-282-3472. We confidently claim that Group K cylinder porting will yield a wider power band and longer piston life than any other porting modification available anywhere. We specialize in CNC-machined valve seat profiles which enhance air-flow and extend valve seat life. USE. Dont hestiate to discover and compare these flagship GP WaveRunners to their competitor Sea-Doo and Kawasaki models! The GP760 offered a really fun ride and easy control due to its lightweight semi V-shaped hull. Please do not send us parts that do not meet the return requirements listed above, as we do not issue refunds for non-qualifying items and cannot return the items to you. That is, very subtle surface irregularities could result in breeches of compression or water. It is neither inferred nor implied that any item sold by POWERSPORTSiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page. Pro-1 Racing Heads specializes in cylinder head performance services for dirt bikes, street bikes, ATVs, UTVs, snowmobiles, and personal watercraft. All orders prepaid with a cashiers check or money order will be returned freight free via ups ground service anywhere in the continental United States. Removing the choke plates (in addition to the aftermarket arrestor) further weakens the inlet tract vacuum as it additionally increases cfm. This blueprinting removes all the interruptions and casting drafts in the pump vane case. We would accent that the porting of plated cylinders should only be done by experienced technicians using the right equipment. It got a slightly bigger, 784 cc, 2-cylinder engine. If the craft is not water-ready, and the ad says that it needs work, its best if you walk away. FAQ. Additionally, their engines are worn out, and if you have to repair or even rebuild them, it could be a big hassle. 4 interest-free installments of $37.25 by . Although you can reduce this effect by installing aftermarket parts like trim tabs, ride plate and so on, they are not able to eliminate the issue completely. If you find some at a much lower price, always be suspicious. Unfortunately, we found no off the shelf impellers that perfectly suited the wide powerband of our GP 800 kits. Items larger than 130 [(2xheight)+(2xwidth)=130] or heavier than 70lbs. Make an offer! These models come powered with 4-stroke engines and have convenient seating for 3 riders. As of this writing, we have not conducted any extensive testing with the FPP dual pipes. No part of this website can be reproduced without written consent of the owner. Lets drill into these performance numbers deeper! In any powersports application, it is the quality of parts that makes the difference between a fun adventure and a disappointing experience. This carb modification, by itself, does not result in a genuine power increase. This model was powered with GP800s 120HP engine, but shared the hull with the GP1200R. For the best experience on our site, be sure to turn on Javascript in your browser. Available as a standalone service, and also included with all of our head modifications, vapor blasting removes dirt and grease residue from your components, while leaving a much smoother and shinier finish than both soda and bead blasting. Yamaha OEM GP800 WaveRunner PWC Jet Ski parts returns must have a RA# and be made within 15 days of receipt of order. It had the same hull and features as its brother, the GP1200. ORDER INFORMATION: SEND ALL PARTS REQUIRED FOR MODIFICATION VIA UPS TO: GETTING THE WORK DONE Most customers send GROUP K the parts needed for modification via UPS, and then do the engine assembly work themselves. The cost difference$370. UPS weight limit makes engine shipping practical and affordable. Yamaha calls this plating Yamaha Ceramic Coating, but its basically Nicasil (a nickel-silica plating). It would be best if you start your research in the fan groups on forums and social sites. This effect can be very distracting and annoying when trying to cover rough water at high speeds. We stock thousands of OEM Yamaha parts. In spite of the lower displacement and the 2-cylinders, the Yamaha GP760 produces no less than 90HP. All of our testing to date, for our Swift Kit and Sleeper Kit, has been only with the stock GP 800 exhaust system. All other orders will be billed to a visa/master card or sent freight collect cod cash. It should also be mentioned that as the GP760 and GP800 were powered with relatiely smaller engines, a passenger slowed them down significantly. Pro-1 Racing Heads is the first custom machine shop in the motorcycle industry to offer this service to the public. Copyright 1995-2023 eBay Inc. All Rights Reserved. Part of the reason for this is a significant variation in the pitches of the blades on many aftermarket impellers. ; In any powersports application, it is the quality of parts that makes the difference between a fun adventure and a disappointing experience. Porposing: Dont forget that all of these old GP WaveRunners are prone to porpoising. For better hook-up, we recommend the R&D top loader scoop grate. We know that you need reliable products that will stand up to the punishment of tough environments. dont miss our GP1200 vs. GP1200R comparison post! Provides reduced back-pressure that improves engines performance and reduces harmful detonation. The cancellation charge for the amount of 20% of the cancelled items total only, when the order has not been completely fulfilled and/or packed for shipment will be subtracted from your refund. We bring up all this information because we suspect there has been a whole lot of testing of aftermarket components that has been done on GP 800s that do not have production rpm peaks. In 2002, the GP800 got a completely new design, and was re-indroduced as the GP800R. The best way to accomplish this finish is with a piece of very coarse emery (40 60 grit is best). This is the ideal There is no disagreement about the peak speed of the production and pre-production GP 800severy one we ever saw radared in the high 57 to low 58 mph range. If you are considering buying one of these PWCs, here are some factors to consider: Capacities: As we discussed above, these crafts are mainly ideal for solo rides. Both the Recreational and Competition finish modes include all the same port timing, port shaping, and specification work. In situations of minor damage to the plating, re-plating of the cylinders is available from the aftermarket. With this power source the performance of the Yamaha GP800 jumped up to 120HP, as its top speed also reached the 55mph. Probably the biggest problem with the Yamaha GP800 is the porpoising. Please have Year, Make, Model and Serial Number ready before calling. For a better understanding, weve compiled all of these models with their specs into this chart: Dont forget that the GP1800R HO was named as VXR in the first years. Occasionally the site will display part status incorrectly or as Unavailable. The most recent addition to our service line is vapor blasting. Here, in the next section we will go though the GP760 and GP800 specs and performance. This is becasue this model is less prone to porpoising due to their new hull design. For this reason, our stock pipe kits utilize the stock carburetors with the choke plates in. The Yahama GPs success story started with these models, and still continues to this day. Another factor to consider is that many of these mods increase the PWCs fuel consumption as well. Copyright 2021-present RIVA Racing. email to: [emailprotected]Please contact our Webmaster with questions or commments. Hull Finishing When you take delivery of any new GP 800, the bottom surface of the hull is very smooth and shiny. If you are looking for more power, the GP1200R could be a better deal. If youre looking for a Yamaha GP800 or GP760 to buy, this post is for you. Something went wrong. Shop Today! The 3.5 4 mph increase of the Sleeper kit puts this lightweight on a par with most of the top muscle-boats. They also have smaller storage and fuel capactities compared to a newer 4-stroke WaveRunner. About Impellers & Pumps The impeller pitch of the stock GP800 prop is much too mild to be of any use on a modified machine. If we want to be accurate: If you stick to these 2-stroke PWCs, this means you are selecting from very aged models. The main difference was that the GP760s engine is a 745cc, 2-cylider, 2-stoke power plant. Yamaha OEM GP800 WaveRunner PWC Jet Ski parts returns must have a RA# and be made within 15 days of receipt of order. Fax: (480) 272-9192 . NOTE: All valve jobs are CNC machined valve seat profiles for optimum performance! . Yamaha GP800 - High Performance Mods - Group K Yamaha GP800 - High Performance Mods Single Pipe Modification Kits The Swift Kit - This kit is a small collection of the most effective bolt on parts for your GP 800, along with modification of your stock cylinder head. However special attention (and special cutters) must be used to assure that the plated liner is not compromised. NOS Car & Truck Oil Pumps & Parts, NOS Performance Parts, NOS Car & Truck Carburetors, NOS Car and Truck Seats, NOS Car and Truck Gauges, We are one of the country's largest power sports cylinder head re-manufacturers. This porting, like the Sleeper kit itself, is developed to be effective enough for local closed course racing, yet reliable enough for endurance racing. To eliminate this effect, owners can install a Riva cdi box that offers an ignition curve identical to the stock curve (ironically called Limited)but with an increased rpm limiter. If you find some at a much lower price, always be suspicious. Print the e-mail page with the Card Number , your Name, Order Number, Address, Phone Number and e-mail address, (or print all the information on a piece of blank white paper) and put inside the return package with the parts authorized for return. The ideal bottom surface finish is a non-shine finish created by numerous full length front to rear scratches. During the testing of our kits, we tried the other ignition curves available in the Riva cdi box. Condition and shipping costs of the returned item(s) is the responsibility of the purchaser. In the Subject Line type RA Request. Yamaha engineers chose these new I body type carbs more for their emissions friendliness than their performance ability. View cart for details. We hope you like it! For recreational level GP800s, this is a good limiting device that does not hamper peak water-speed performance in any way. (GP800:0.24, GP800R: 0.20 HP/pound). English Automatic translation Connexion. (Sorry, we know that on mobile its quite huge. The Competition mode also includes additional exhaust port finishing and a transfer port rough finish that further improves fuel atomization. It short, Yamaha engineer changed the radius on the back edge of the trim tab area of the hull on the 99 models. Both of our kits for the GP8 utilize all the stock exhaust components with the stock plumbing. Size: Qty. Color: RED / BLACK. For additional return policy info click here. On-Demand Machine Shop Services. Our solution is to custom pitch the impellers for our GP 800 kits. All rights reserved. The cancellation charge for the amount of 20% of the TOTAL ORIGINAL ORDER AMOUNT INCLUDING ALL SHIPPING CHARGES, IF THE ORDER HAS ALREADY BEEN PACKED AND READY TO SHIP will be subtracted from your refund. Find company research, competitor information, contact details & financial data for Performance Powersports Group, Inc. of Tempe, AZ. FREE shipping. Moreover, many of these crafts are heavily modified to reduce porpoising or for better performance. 2000 Yamaha GP800 (GP800Y) Original Equipment Manufacturer Parts at Flemington Yamaha Carburetor Control Cable Crankshaft Piston Cylinder Crankcase 1 Cylinder Crankcase 2 Electrical 1 Electrical 2 Engine Hatch 1 Engine Hatch 2 Exhaust 1 Exhaust 2 Fuel Fuel Tank Generator Graphic Tool Gunwale Mat Hull Deck Important Labels Intake Jet Unit 1 Yamaha GP760 and GP800 Prices The Yamaha GP760 prices start from $1,000 and go up to $2,500. Another modification that can significantly improve rough water hook-up is pump blueprinting. As the modified GP8 travels across rough water at high speed, the engine will bump the rev limiter each time that the impeller comes completely out of the water. As stated above, stock levels change weekly so check back or call us for questionable availability. All rights reserved. About Stock GP 800 RPMs Establishing the stock performance data for the GP 800 has been more difficult than with any other machine we have worked with. Beyond trim tabs, aftermarket intake grates, ride plates, and sponsons may also help to eliminate porpoising on the Yamaha GP800 and GP760. 2000 Yamaha GP800 (GP800Y) OEM Parts 2000 Yamaha GP800 (GP800Y) Original Equipment Manufacturer Parts at Yamaha Sports Plaza Carburetor Control Cable Crankshaft Piston Cylinder Crankcase 1 Cylinder Crankcase 2 Electrical 1 Electrical 2 Engine Hatch 1 Engine Hatch 2 Exhaust 1 Exhaust 2 Fuel Fuel Tank Generator Graphic Tool Gunwale Mat Hull Deck Ecardeals America Inc. We sell superb quality Yamaha performance spark plugs. 1998 Yamaha WaveRunner GP800 Parts. In such case, parts shall be replaced with the manufacturers replacement item at no charge. Increasing the compression of pwcs has always been an easy way to get a good overall performance increases. If you dont have mechanical skills, you may run into difficulties if you have to adjust the carburetor or fix other parts. Such a modification is performed by Novi Performance (makers of racing carbs). We will then evaluate your design, estimate the cost of the project, and forecast the completion date. Yamaha dealers have a service bulletin that outlines how to make this simple, but effective, modification on the older 98 hulls. The material of this plating is so tough that it can stand up to the forces of several piston scoring episodes with virtually no damage to the bore at all. 2000 Yamaha GP800 (GP800Y) Original Equipment Manufacturer Parts at Yamaha Sports Plaza. Unfortunately, the 2-stroke GPs have been out of production for a long time. Panier 0 Produit Produits (vide) As we complete our testing with the dual-pipe platforms, we will be posting that information to a separate document. We are now rebuilding cylinder heads for vintage motorcycles. We have compiled the key specs and most important facts into this Yamaha GP800 review! Subscribe to get the latest! (plus fabriqu) - Yamaha ref: 90601195UD00 (90601-195UD-00) au meilleur prix, livraison rapide garantie.