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The 2007-2010 Sea-Doo GTI SE 155 was the big brother of the base GTI 130 and GTI SE 130. These skis shared their platform and most features, but the former enjoyed a more powerful 155 HP engine option.
If you want to find out more about this popular Sea-Doo, this post is for you.
We at JetDrift have compiled all you need to know into this 2007-2010 Sea-Doo GTI SE 155 review!
2007-2010 Sea-Doo GTI SE 155 Review
By 2006, Sea-Doo had completely revamped its entry-level GTI family. The platform of the new GTI lineup was redesigned from scratch and housed a 4-stroke Rotax engine.
The 2006 Sea-Doo GTI lineup included four models, the base GTI 130, the GTI Rental 130, and the GTI SE 130. In 2007, this family was expanded with the more advanced GTI SE 155.
The new model came standard with a speedometer, dual mirrors, reboarding step, premium footwell mats, water temperature sensor, ski tow eye, custom seat, and a more powerful 155 HP engine option.
Let’s get down to the nitty-gritty and talk about this Sea-Doo in detail!
‘07-’10 Sea-Doo GTI SE 155 Hull and Deck
Like its smaller siblings, the GTI SE 155 was built on an entirely-new Fiber Reinforced Plastic (FRP) composite platform measuring 127 inches in length, 49 inches in width, and 45.9 inches in height.
The dry weight of the GTI SE 155 was 747 pounds. In contrast, the dry weight of the 2-stroke GTI models varied between 623 and 700 pounds depending on the model.
The new 4-stroke GTI SE 155 was not only bigger and heavier but it also returned with greater capacities.
It could carry three riders and plenty of gear with ease. Its load capacity was 602 pounds, 66 pounds more than the capacity of the 2-stroke GTI line.
Its revamped deck featured a 15.9-gallon fuel tank, standard bow storage, and a roomy glovebox. The total storage capacity of the ski was 12.4 gallons.
This GTI platform remained from 2006 through 2010 without any significant changes.
In 2011, the Canadian manufacturer released its all-new GTI line including the top-of-the-line 2011 GTI SE 155.
‘07-’10 Sea-Doo GTI SE 155 Engine and Propulsion
The engine of the 2007-2010 Sea-Doo GTI SE 155 was a 4-stroke, 1494cc, SOHC, 3-cylinder inline Rotax 4-TEC rated at 155 HP. Interestingly, the GTI SE was available with both 130 and 155 HP engine options.
This Rotax 4-TEC power source debuted in the 2002 Sea-Doo GTX 4-TEC, but found its way into many other Sea-Doo models.
From 2006 onwards Sea-Doo GTI models had exclusively been manufactured with this 4-stroke power source, and the GTI SE 155 was no exception.
The key features of the 2007-2010 Sea-Doo GTI SE 155 engine were as follows:
- 4-stroke, 3-cylinder architecture
- Engine power: 155 HP
- Naturally-aspirated, 52mm throttle body
- 12 valves (4 per cylinder) with hydraulic lifters
- Single over head camshaft (SOHC)
- Compression ratio: 10.6:1
- Water-cooled exhaust system
- Dry sump lubrication system
- Multi-port fuel injection
- Chokeless starting
- Water/air separator
- Watertight digital ignition
- RPM limiter
- Warning device
- Tips Over Protection System (T.O.P.S.)
- D-Sea-Bel sound reduction system
- Closed-loop cooling system
- Electric starter
Thanks to its 4-stroke architecture and multi-port fuel injection system, the GTI SE 155 offered a smooth power delivery along with plenty of torque.
‘07-’10 Sea-Doo GTI SE 155 Features
The ‘07-’10 Sea-Doo GTI SE 155 came with many advanced features, including:
- Multifunction Digital Information Center
- Sea-Doo learning keys
- DESS post (engine cut-off switch)
- Handlebar-mounted start/stop buttons
- Off-Power Assisted Steering (O.P.A.S.)
- Watertight, removable front storage bin
- Glovebox
- Padded handlebar cover
- Mechanical reverse
- 3-rider seat
- Rear seat latch
- Tool kit
- Dual drain plugs
- Thumb throttle lever
- Tow hook
- Mooring cleats
- Bumpers
- Elevated fuel filler
- Rear grab handle
- Foam flotation
- Sponsons
- Deck mats
Over the base GTI 130, the GTI SE 155 had some extra features, which were as follows:
- Speedometer
- Adjustable mirrors
- Premium footwell mats
- Reboarding step
- Lake water temperature sensor
- Cut and sew seat (GTI SE 155 only)
- Ski tow eye
The Multifunction Digital Information Center of the GTI SE 155 had a lot of advanced functions, including:
- Speedometer (GTI SE only)
- Lake water temp. sensor (GTI SE only)
- Tachometer
- Fuel level
- Information display
- Indicator lights
‘07-’10 Sea-Doo GTI SE 155 Performance
The GTI SE 155 was known to be an excellent beginner jet ski, and with good reason.
This tame ski had a reputation for great maneuverability, a predictable attitude, and good reliability.
Thanks to its 4-stroke, 155 HP engine, the ‘07-’10 Sea-Doo GTI SE 155 could hit about 55 mph in stock condition.
‘07-’10 Sea-Doo GTI SE 155 Problems
In a nutshell, the most common problems of the ‘07-’10 Sea-Doo GTI SE 155 were as follows:
- Awkward thumb throttle
- OPAS malfunctions
- Lack of a brake system
It’s safe to say that one of the biggest flaws of the ’07-‘10 GTI SE 155 was its awkward thumb throttle lever.
Unlike modern finger throttle levers, this outdated configuration offered less precise handling and caused massive hand fatigue on longer tours.Another problem with the GTI SE 155 was its deflective OPAS system, which would come into operation when it shouldn’t. Fortunately, it was relatively easy to remove.
It’s also good to know that this ski came without a brake system, since Sea-Doo’s iBR brake and reverse system was only available on the flagship skis from late 2008.
2007 Sea-Doo GTI SE 155 Specs Charts
For your convenience, we’ve compiled the key specs of the 2007 Sea-Doo GTI SE 155 into these charts:
2007 Sea-Doo GTI SE 155 Engine Specs
| Engine Specs | 2007 Sea-Doo GTI SE 155 |
|---|---|
| Type | 155 hp Rotax® 4-TEC®, Single Over Head Camshaft (SOHC), liquid cooled |
| Number of cylinder | 3 in line |
| Number of valve | 12 valves (4 per cylinder) with hydraulic lifters (no adjustment) |
| Displacement | 1494 cc (91.2 cu. in) |
| Induction type | Naturally aspirated with 52 mm throttle body |
| Bore | 100 mm (3.9 in) |
| Stroke | 63.4 mm (2-1/2 in) |
| Compression ratio | 10.6:1 |
| Lubrication Type | Dry sump (2 oil pumps). Replaceable oil filter. Water-cooled oil cooler |
| Lubrication Oil type | Refer to LIQUIDS section |
| Exhaust system | Water cooled/water injected. Direct flow from propulsion unit |
| Rev limiter setting | 7650 RPM |
2007 Sea-Doo GTI SE 155 Cooling System
| Cooling System | 2007 Sea-Doo GTI SE 155 |
|---|---|
| Type | Liquid cooled. Closed circuit |
| Coolant | Ethylene-glycol 50% - 50% , antifreeze/demineralized water. Coolant containing corrosion inhibitors for internal combustion aluminum engines |
2007 Sea-Doo GTI SE 155 Electrical System
| Electrical System | 2007 Sea-Doo GTI SE 155 |
|---|---|
| Magneto generator output | 360 W @ 6000 RPM |
| Ignition system type | Digital inductive type |
| Ignition timing | Not adjustable |
| Spark plug - Make and type | NGK, DCPR8E |
| Spark plug - Gap | 0.75 mm (.030 in) |
| Spark plug - Quantity | 3 |
| Starting system | Electric starter |
| Battery | 12 V, 30 Ah. Electrolyte type |
| Fuses | Refer to MAINTENANCE |
2007 Sea-Doo GTI SE 155 Recommended Fuel
| Recommended Fuel | 2007 Sea-Doo GTI SE 155 |
|---|---|
| Type - for optimum performance | Premium unleaded gasoline |
| Minimum octane number - for optimum performance | Inside North America: (91 (R + M)/2) Outside North America: 95 RON |
| Type - minimum allowed | Regular unleaded gasoline |
| Minimum octane number - minimum allowed | Inside North America: (87 (R + M)/2) Outside North America: 92 RON |
2007 Sea-Doo GTI SE 155 Propulsion System
| Propulsion system | 2007 Sea-Doo GTI SE 155 |
|---|---|
| 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 |
| Impeller | Stainless steel |
| O.P.A.S. system | Yes |
| Minimum required water level for jet pump | 90 cm (3 ft) underneath the lowest rear portion of hull |
2007 Sea-Doo GTI SE 155 Dimensions and Capacities
| Dimensions and capacities | 2007 Sea-Doo GTI SE 155 |
|---|---|
| Number of passengers (Refer to load limit) | 3 |
| Overall length | 322.5 cm (127 in) |
| Overall width | 124.5 cm (49 in) |
| Overall height | 113 cm (44.4 in) |
| Weight (dry) | 340 kg (747 lb) |
| Load limit (passengers + luggage) | 273 kg (602 lb) |
| Engine oil | 3 L (2.7 U.S. qt) oil change w/filter, 4.5 L (4.1 U.S. qt) total |
| Cooling system (coolant) | 5.5 L (5 U.S. qt) total |
| Fuel tank (including reserve) | 60 L (15.9 U.S. gal) |
| Fuel tank reserve (from low level signal) | 15 L (4 U.S. gal) |
These charts are for informational purposes only! For exact specifications, please refer to the factory manual.
Takeaways
As a takeaway, we’ve answered the most common questions about the ‘07-’10 Sea-Doo GTI SE 155:
What is a ‘07-’10 Sea-Doo GTI SE 155?
The 2007-2010 Sea-Doo GTI 155 was the high-end model of the entry-level GTI line.
When did the Sea-Doo GTI SE 155 Come Out?
The Sea-Doo GTI SE 155 debuted in 2007.
What Size was a ‘07-’10 Sea-Doo GTI SE 155?
The ‘07-’10 Sea-Doo GTI SE 155 measured 127 inches in length, 49 inches in width, and 45.9 inches in height.
How Much Did a ‘07-’10 Sea-Doo GTI SE 155 Weigh?
The dry weight of the ‘07-’10 Sea-Doo GTI SE 155 was 747 pounds.
How Many People Could Ride on a ‘07-’10 Sea-Doo GTI SE 155?
The ‘07-’10 Sea-Doo GTI was rated for three riders.
What Kind of Engine was in the ‘07-’10 Sea-Doo GTI SE 155?
The ‘07-’10 Sea-Doo GTI SE 155 was powered by a 4-stroke, 1494cc, SOHC, Rotax 4-TEC engine.
Was the ‘07-’10 Sea-Doo GTI SE 155 Supercharged?
The ‘07-’10 Sea-Doo GTI SE 155 utilized a naturally-aspirated engine configuration.
Was the ‘07-’10 Sea-Doo GTI SE 155 a 4-Stroke?
The ‘07-’10 Sea-Doo GTI SE 155 was powered by a 4-stroke engine.
How Much Horsepower Did a ‘07-’10 Sea-Doo GTI SE 155 Have?
The ‘07-’10 Sea-Doo GTI SE 155 produced 155 HP in stock condition.
How Much Fuel Did a ‘07-’10 Sea-Doo GTI SE 155 Hold?
The ‘07-’10 Sea-Doo GTI SE 155 was equipped with a 15.9-gallon fuel tank.
How Much Oil Did a ‘07-’10 Sea-Doo GTI SE 133 Hold?
The ‘07-’10 Sea-Doo GTI SE 155 required 2.7 US quarts of oil with filter and 4.1 U.S. quarts total.
How Much Weight Could a ‘07-’10 Sea-Doo GTI SE 155 Hold?
The total weight capacity of the ‘07-’10 Sea-Doo GTI SE 155 was 602 pounds.
How Much Gear Could a ‘07-’10 Sea-Doo GTI SE 155 Carry?
The total storage capacity of the ‘07-’10 Sea-Doo GTI SE 155 was 12.4 gallons.
How Fast Did a ‘07-’10 Sea-Doo GTI SE 155 Go?
The top speed of a ‘07-’10 Sea-Doo GTI SE 155 was about 55 mph under ideal conditions.
Could the ‘07-’10 Sea-Doo GTI SE 155 Tow a Skier or a Wakeboarder?
Due to its three-seater configuration, the Sea-Doo GTI SE 155 could legally tow a wakeboarder or skier.
Did the ‘07-’10 Sea-Doo GTI SE 155 Have a Reverse?
The ‘07-’10 Sea-Doo GTI SE 155 came standard with a mechanical reverse system.
Did the ‘07-’10 Sea-Doo GTI SE 155 Have a Brake?
The ‘07-’10 Sea-Doo GTI SE 155 was manufactured without a brake system.
How Much Does a ‘07-’10 Sea-Doo GTI SE 155 Cost?
The asking price of a used ‘07-’10 Sea-Doo GTI SE 155 varies between $3,000 and $7,000 depending on the year and its condition.
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