2007-2008 Sea-Doo RXP 155 Specs and Review [Video]
The Sea-Doo RXP 155 was a lesser-known sibling of the extremely popular supercharged RXP 215. These machines shared the same platform and most features, but the RXP 155 came with a non-supercharged, 155 HP engine option.
If you want to learn all about this entry-level performance Sea-Doo, this post is for you.
We at JetDrift have compiled all you need to know into this Sea-Doo RXP 155 review!
Sea-Doo RXP 155 Review
Sea-Doo revealed its high-performance RXP line for 2004. This series replaced the outdated, 2-stroke XP DI, which was still being marketed in that season.
During the following years, the RXP line underwent five different generations, including:
- 2004 – 2010: RXP 215
- 2007 – 2008: RXP 155
- 2008 – 2011: RXP-X 255
- 2012 – 2015: RXP-X 260
- 2016 – RXP-X 300
The first member was the supercharged RXP 215, which debuted in 2004.
Three years later, the RXP line was expanded with the more affordable 2007 RXP 155.
Unlike its supercharged and intercooled brother, this ski was powered by a naturally-aspirated engine option.
Both the 155 and 215 utilized the same base engine, but the latter was equipped with an intercooled supercharger. The RXP 215 produced an amazing 215 HP thanks to these performance parts.
In contrast – as the name suggests – the non-supercharged engine of the RXP 155 was rated for 155 HP.
The key features of this naturally-aspirated Rotax 1503 were as follows:
- 1494cc, 3 cylinder in-line
- Induction type: naturally-aspirated
- 12 valves (4 valves per cylinder)
- Single overhead camshaft (SOHC)
- Dry sump oil injection system
- Closed-loop cooling system
- NGK DCPR8E spark plugs (x3)
- Electric starter
Engine power was delivered to a Bombardier Formula jet pump featuring a stainless-steel, 4-blade impeller.
Besides their engine options, the key differences between these two models included:
|Specs||RXP 155||RXP 215|
|Performance||155 HP||215 HP|
|Weight||750 lbs||792 lbs|
Surprisingly, both of these machines shared the same color scheme. Only a little decal on the side of the top deck told you which engine was under the hood.
Thanks to its more basic engine and fewer features, the RXP 155 weighed only 750 pounds. In contrast, the dry weight of the RXP 215 was a whopping 792 pounds.
It also lacked the innovative Variable Trim System (VTS), which came on the 215 as standard.
Aside from these differences, the RXP 155 was basically identical to the 215. They shared the same RXP body, measuring 120.9 inches in length, 48 inches in width, and 46.6 inches in height.
The platform was built on a revamped GTI hull, utilizing redesigned chines and front spray deflectors. The RXPs also came with a widened intake to feed the pump with more water.
Unlike the hull, the top deck was designed from scratch.
It housed a 2-rider seat, but the RXP was intended for solo rides.
There was also an optional number plate cover marketed for this model. It could be mounted on the rear portion of the seat, converting the RXP into a race-inspired, one-seater machine.
Regarding controls, Mode/Set buttons and the Start/Stop button were mounted on the left handlebar.
One of the downsides of this craft was the uncomfortable thumb-throttle on the left handlebar. Unlike today’s trigger levers, this lever was tiring to use as it was mounted in an awkward position.
The RXP 155 was also equipped with several convenience features, including the O.P.A.S. fins, manual reverse, and fender cleats.
To be more precise, the features of the 2007 Sea-Doo RXP 155 were as follows:
- Handlebar-mounted start/stop button
- Handlebar-mounted function buttons
- Large front storage
- Glove box
- Rear storage basket
- One-piece seat with seat strap
- Electric start
- Safety lanyard
- 2 gauges (speedometer, tachometer)
- Info display
- Mooring cleats
- Off-Power Assisted Steering (O.P.A.S.)
- Overheating warning device
- Bow and stern eyes
- Ski tow eye
- Bilge drain plugs
- Flushing connector
- Side vanes
- Rear grab handle
- Manual reverse
- Tool kit
- DESS security system
Its well-designed dash had an analog speedometer, an analog tachometer, and a 19-function info display. The latter came with many useful functions, including:
- Digital Tachometer: Indicates the revolution per minute (RPM) of the engine.
- Digital Speedometer: Indicates the speed of the watercraft in miles per hour (MPH) and kilometers per hour (km/h).
- Depth Gauge (if so equipped): It continuously displays the water depth under the hull within 0 to 50 meters (0 to 170 feet).
- Compass: Displays the cardinal points to indicate the orientation of the watercraft.
- Average Speed: The information center approximately calculates and displays the average speed (AV KM/H or AV MPH) of the watercraft since the last engine start.
- Distance: (KM or MILES) The information center approximately calculates the distance based on the operation time and the watercraft speed and displays the result in kilometers (KM) or miles (MILES).
- Hourmeter: Displays the time in hours of the watercraft usage (HOUR).
- Water Temperature: Displays the water temperature of the water surface (L TEMP) in degrees Celsius (C) or Fahrenheit (F).
- Exterior Temperature (if so equipped): Displays the exterior air temperature (E TEMP) in degrees Celsius (C) or Fahrenheit (F).
- Trip Hour Meter: (TRIPMTR) Allows to measure an interval of time in hours and minutes (hh:mm).
It’s safe to say that the RXP 155 offered very similar handling to its supercharged brother.
The ski was much lighter than 3-seater models, resulting in excellent cornering abilities and better performance. You could throw this craft around very easily, thanks to its smaller body. The downside of the size was that the RXP was quite unstable on rough waters.
The riding position was engineered for performance over comfort, ensuring a more athletic attitude. To this end, the handlebar was lowered while the position of the rider was moved forward.
Both recreational riders and racers appreciated its aggressive turning abilities and handling.
As far as engine power, the RXP 155 got a lot of criticism due to its low-performance engine.
Unlike its supercharged equivalent, it could only reach a top speed of 58-60 mph on good days. Also, it offered a much slower acceleration.
Despite this, the 155 wasn’t significantly cheaper. In 2007, Sea-Doo offered the RXP 155 for $9,999, while the RXP 215 came with the price tag of $11,199.
As you might assume, the latter was far more popular and dominated the 2-seater performance market.
Although the RXP 155 could have been a good addition to the fleet, it never became popular.
Eventually, due to the poor sales figures, the manufacturer discontinued the RXP 155 after two short years of production.
Sea-Doo RXP 155 Problems
Although it was considered an innovative watercraft in its time, the RXP 155 had some definite drawbacks.
Let’s take a close look at each!
Riders agreed that the major problem with the RXP 155 was poor engine performance.
Let’s face it, the naturally-aspirated Rotax 1503 did a great job in smaller recreation skis and in touring 3-seater models, but it was simply underpowered for a “musclecraft.”
Also, its pump was made of plastic rather than durable aluminum.
On the other hand, this simple power source proved to be more durable and reliable, and it didn’t require periodic supercharger rebuilds.
It also had a much better GPH and ran on cheaper gas, so filling up the 155 cost less than the 255.
Lack of Trim System (VTS)
Another huge disadvantage of the RXP 155 was that it lacked the variable trim system (VTS).
Trim is a nice addition on any jet ski, so the absence of this feature scared many buyers away from this model.
RXP 155 OPAS Issues
Although the Off-Throttle Assisted Steering (O.P.A.S.) was a revolutionary idea, it wasn’t perfect.
The most common complaint against this system was that it automatically activated on rough waters, causing an undesired “bumpy” riding experience.
Since this system was controlled by pump pressure, the fluctuating pressure on choppy waters often fouled its sensors.
Because of this, many riders removed the O.P.A.S. rudders from their Sea-Doos.
2007 Sea-Doo RXP 155 Specs Chart
For your convenience, we’ve compiled the 2007 Sea-Doo RXP 155 specifications into these charts!
2007 Sea-Doo RXP 155 Dimensions
|2007 Sea-Doo RXP 155||Dimensions and Capacities|
|Number of passengers||2 (refer to load limit)|
|Overall length||307 cm (120.9 in)|
|Overall width||122 cm (48 in)|
|Overall height||104 cm (46.6 in)|
|Weight (dry)||340 kg (750 lb)|
|Load limit||181 kg (399 lb)|
|Fuel tank (including reserve)||60 L (15.9 U.S. gal)|
|Cooling system (coolant)||5.5 L (5 U.S. qt) total|
|Engine oil||3 L (2.7 U.S. qt) oil change w/filter - 4.5 L (4.1 U.S. qt) total|
2007 Sea-Doo RXP 155 Engine Specs
|2007 Sea-Doo RXP 155||Engine Specs|
|Engine type||BOMBARDIER-Rotax 1503, 4-stroke, SOHC (Single Over Head Camshaft) liquid-cooled|
|Number of cylinder||3 in-line|
|Number of valve||12 valves (4 per cylinder) with hydraulic lifters (no adjustment)|
|Exhaust system||Water cooled / water injected with regulator|
|Induction type||Naturally aspirated with 52 mm throttle body|
|Displacement||1494 cm3 (91.2 in3)|
|RPM Limiter Operation @||7650 RPM|
|Bore||100 mm (3.9 in)|
|Stroke||63.4 mm (2-1/2 in)|
|Cooling Type||Liquid cooled. Closed circuit. (see also exhaust system)|
|Coolant||Ethylene-glycol 50%/50% antifreeze/water. Coolant containing corrosion inhibitors for internal combustion aluminum engines|
|Lubrication type||Dry sump (2 oil pumps). Replaceable oil filter. Water-cooled oil cooler.|
2007 Sea-Doo RXP 155 Liquids
|2007 Sea-Doo RXP 155||Liquids|
|Fuel type||Recommended: Premium unleaded gasoline - Inside North America: 90 (R + M)/2, Outside North America: 95 RON for optimum performance - Minimum: Regular unleaded gasoline - Inside North America: 87 (R + M /2) Outside North America: 91 RON|
|Coolant||Ethylene-glycol 50%/50% antifreeze/water. Coolant containing corrosion inhibitors for internal combustion aluminum engines|
2007 Sea-Doo RXP 155 Propulsion
|2007 Sea-Doo RXP 155||Propulsion|
|Propulsion system||Sea-Doo Direct Drive|
|Jet pump||Composite/aluminum, axial flow, single stage. large hub with 10-vane stator|
|Transmission||Direct drive, forward/neutral/reverse|
|Minimum required water level for jet pump||90 cm (3 ft) underneath the lowest rear portion of the hull|
2007 Sea-Doo RXP 155 Electrical Features
|2007 Sea-Doo RXP 155||Electrical Features|
|Magneto generator output||360 W @ 6000 RPM|
|Ignition system type||Digital inductive type|
|Ignition timing||Not adjustable|
|Spark plug - Make and type||NGK, DCPR8E. Quantity: 3|
|Spark plug - Gap||0.75 mm (.030 in)|
|Starting system||Electric starter|
|Battery||12 V, 30 Ah, Electrolyte type|
These charts are for informational purposes only! For exact specifications, please refer to the factory manual.
Sea-Doo RXP 155 for Sale
If you are considering purchasing one, you probably want to know where to find a Sea-Doo RXP 155 for sale. As this model vanished from the market in 2008, it’s already a collectible item, so finding one is not an easy task!
We recommend that you start your research on dedicated Sea-Doo forums and Facebook fan groups. Aside from some good deals, you may find some valuable info there about this ski.
Besides these sources, you may also find some used Sea-Doo RXP 155s for sale on Craigslist, PWC Trader, and other dedicated jet ski swap sites.
As a takeaway, we’ve answered the most common questions about the 2007-2008 Sea-Doo RXP 155!
What is a Sea-Doo RXP 155?
The Sea-Doo RXP 155 was a “budget” high-performance Sea-Doo. It shared its platform and most features with the supercharged RXP 215, but it was marketed with a less powerful, naturally-aspirated engine option.
What Year did Sea-Doo Make the RXP 155?
Sea-Doo marketed the RXP 155 for only two short years, from 2007 through 2008.
How Many People Could Ride a Sea-Doo RXP 155?
The Sea-Doo RXP 155 was rated for two riders, but it was more of a solo machine.
What Size Storage Compartment Did a Sea-Doo RXP 155 Have?
The Sea-Doo RXP 155 featured front storage, a glove box, and an under-seat storage tray with a total storage capacity of 10.7 gallons.
Was the Sea-Doo RXP 155 Supercharged?
No, the RXP 155 was powered by a naturally-aspirated Rotax engine.
What Size was the Sea-Doo RXP 155?
The Sea-Doo RXP 155 was 120.9 inches long, 48 inches wide, and 46.6 inches high.
How Much Did a Sea-Doo RXP 155 Weigh?
The dry weight of the Sea-Doo RXP 155 was 752 pounds.
What Kind of Engine Did the Sea-Doo RXP 155 Have?
The Sea-Doo RXP 155 engine was a supercharged and intercooled 4-stroke Bombardier-ROTAX 1503. This 1493cc, SOHC triple featured a closed-loop cooling system and a Multipoint Fuel Injection system.
How Much Horsepower Did a 2007-2008 Sea-Doo RXP 155 Have?
The Sea-Doo RXP 155 provided 155 HP at 7,650 RPM.
Did the Sea-Doo RXP 155 Have Reverse?
Yes, the Sea-Doo RXP 155 was equipped with manual reverse.
How Much Weight Could a Sea-Doo RXP 155 Hold?
The total weight capacity of the Sea-Doo RXP 155 was 399 pounds.
How Much Fuel Did a Sea-Doo RXP 155 Hold?
The Sea-Doo RXP 155 utilized a 15.9-gallon (60 L) fuel tank.
How Many cc was a Sea-Doo RXP 155?
The Sea-Doo RXP 155 featured a 1492 cc triple engine.
Was a Sea-Doo RXP 155 a 4-Stroke Ski?
Yes, the Sea-Doo RXP 155 utilized a 4-stroke engine.
How Much Fuel Did a Sea-Doo RXP 155 Use?
The fuel consumption of the Sea-Doo RXP 155 was about 11.4 GPH at WOT.
Could the Sea-Doo RXP 155 Tow a Skier or a Wakeboarder?
No, the Sea-Doo RXP 155 was rated for two riders, so it was not recommended for tow sports.
How Fast Did a 2007-2008 Sea-Doo RXP 155 Go?
The top speed of a 2004-2010 Sea-Doo RXP 155 was 58-60 mph under ideal conditions.
How Much is a 2007-2008 Sea-Doo RXP 155 Worth?
It’s hard to tell the exact price of a first-generation Sea-Doo RXP 155, as it strongly depends on its year, condition, and location. But as a rule of thumb, the prices typically range from $3,000 up to $7,000.
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