
Learn what is needed by this great PWC.
The Kawasaki Ultra 150 that was originally a very unpredictable
jet ski became a tamed one with a few bolt on modifications. As we all know, the ultra 150 jet ski, was made a high performance rocket from factory and it took the speed title as the fastest stock personal watercraft produced and sold at that time. The handling modifications that follow made a big difference in sharp turning and the kind of water that you can ride in at full speed. They were and are well worth their cost and the effort involved.
There are many types of modifications already developed for the ultra 150 and the only

limitations are, usually, the high price they will cost you. I have known of ultras that went over, a verified, 80 mph on radar or gps devices but, it took big $ in doing the modifications to get there. I know of a guy, Daren, that got his ultra 150, to run stable and reliable, up to 81.1 mph and then, he sold it because he had reached the hulls speed limit. That was his claim and I believed him since he documented the complete modification process, video taped the speed runs, and it can be viewed at a couple of related forums online. Some of the many types of modifications that you can do to PWC should include; handling, performance, safety, comfort and cosmetics. You could do them for recreational or circuit racing purposes. Most people that get involved with recreational performance modifications are going for raw top speed gains in order to beat somebody at their water hole. Circuit racers, on the other hand, are looking more for acceleration and handling combined with top speed.
Modifications cost will vary depending on "used versus new" and how good and lucky you get when looking for aftermarket parts. The best prices can be found searching on online at ebay and the many PWC forums that include classifieds sections, these seems to be the cheapest way. Be aware of the risk involved when buying online. I'm not related with any shop so, I can't control what the aftermarket parts will be selling for!
Handling Modifications:
Shreadmaster riding plate
R&D Aquavein intake grate
Set of Beach House Sponson
Extended Steering Nozzle
or just an Extension ring
Recreational Level 1 Performance Modifications:
Cylinder Heads Modification: 42 CC R&D Red Heads
Carburetors Modification: Skiworx CV Carbs Mod
Exhaust Modification: Skiworx Stinger Modification
Impeller Modification: Solas Dynafly16/20 - Balanced
Jet Pump Mod: Shimmed and Blue Printed Jet Pump
Above + extra addition to my 2000 Ultra 150
Buckshot BRM50s Carburetors
PROK flame arrestors
R&D Intake manifolds
Front Triple Pissers
Mukini fuel pump
Fuel Primer kit
Higher Performance Mods available:
Extrude Hone Headpipe and Exhaust manifold
GroupK NOVI 48mm Carbs with TPS mount, no fuel pumps
Triple Pipes Exhaust
Mod from Factory PipesR&D M-16 Complete Intake Reeds
Complete UMI Steering System
Safety, comfort and looks mods:
APdesigns
Jettrim seat cover
Hydro-Turf l Splash Guard
Rule 500 GPH Bilge Pump
Garmin eTrex GPS device
Hydro-Turf
Floor Mats
Duck bills Drain Plugs
Tiny Tach


Which is the fastest PWC? 
Well, nobody knows yet which one will be the faster jet ski in town but, no matters what brand of jet ski you ride, be it a Yamaha GPR, a Seadoo RXP or a Kawasaki Ultra 250X, nor if you live in the east, west coast or another country, I still like to wish all racing and recreational PWC enthusiasts lots of luck with their next modification and jet ski racing battle. God bless you all... Papoloko!
View my 2000 Kawasaki Ultra 150
jet ski 68.7 gps mph videoArticle Rights Reserved by Papoloko at
Ultra150s.com