SUZUKI 25310-31910 Cam Drum 73-77

( Manufacturer Part Number: 25310-31910 ), ( Type: Shift Cam Drum ), ( Machine Type: Street Motorcycle ), ( Color: Silver ), ( Item Diameter: 0.125 In ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Compatible Year: 1972 ), ( Country Of Origin: Japan )

Review SUZUKI Oem 73-77 Shift Cam Drum fits GT550 GT 550

The **Suzuki 25310-31910 GT550 Cam Drum** is a meticulously engineered component designed specifically for the iconic **Suzuki GT550** models produced between **1973 and 1977**, ensuring optimal performance and reliability for these legendary motorcycles. This high-quality cam drum, part of Suzuki s original equipment (OEM) or high-fidelity reproduction line, plays a critical role in the motorcycle s valve train system by housing the camshaft and facilitating precise valve operation. Crafted from durable, heat-treated steel, the cam drum is precision-machined to exacting tolerances, guaranteeing smooth engagement with the rocker arms and pushrods while minimizing wear and friction. Its robust construction ensures longevity, even under the demanding conditions of high-performance riding or extended use, making it an essential upgrade for enthusiasts seeking to restore or enhance the mechanical integrity of their GT550. The cam drum s design is tailored to complement the motorcycle s **73-77 engine specifications**, delivering the correct camshaft positioning and valve timing necessary for peak power delivery and smooth operation. Whether used in a classic restoration project or as a replacement for a worn-out original part, this cam drum exemplifies Suzuki s commitment to engineering excellence, offering a seamless blend of durability and performance for riders who demand nothing less than perfection in their vintage machinery.

**Pros and Cons of Buying a Suzuki 25310-31910 GT550 Cam Drum (1973 1977 Models)**

### **Pros**

1. **Classic Reliability** Suzuki s GT550 engines are known for their simplicity and durability, especially in the early models. With proper maintenance, they can last for decades with minimal issues.

2. **Affordable Parts and Maintenance** Being an older model, parts like the cam drum (25310-31910) are relatively inexpensive compared to modern high-performance engines. Basic maintenance (oil changes, valve adjustments) is straightforward and cost-effective.

3. **Proven Performance** The GT550 s air-cooled, single-cylinder design is well-suited for light-duty use, such as a daily commuter bike, farm work, or weekend riding. It delivers steady power (around 25 30 hp) without complex electronics.

4. **Easy to Modify** The engine is simple enough for DIYers to perform upgrades like porting, polishing the cylinder, or installing a performance carburetor. Aftermarket support exists for tuning.

5. **Low Running Costs** Fuel efficiency is decent for its class, and since it s a basic design, repairs are rarely expensive. No advanced diagnostics or expensive sensors are required.

6. **Vintage Appeal** If you appreciate classic motorcycles, the GT550 has a nostalgic charm, especially in its original form. Restoring one can be a rewarding hobby.

7. **Minimal Electronics** Unlike modern bikes, there s no complex ECU or computer systems to fail. The ignition and carburetion are mechanical, making troubleshooting easier.

---

### **Cons**

1. **Outdated Technology** The engine lacks modern refinements like fuel injection, variable valve timing, or advanced cooling systems. This means poorer fuel economy, less power, and more maintenance compared to today s bikes.

2. **Poor Fuel Efficiency** Expect around 50 70 mpg in ideal conditions, which is decent but far behind modern standards. Gasoline consumption adds up over time.

3. **Vibration and Comfort** The single-cylinder design produces noticeable vibration, especially at higher RPMs. The ergonomics and suspension are also basic by today s standards, making long rides uncomfortable.

4. **Limited Power and Speed** The GT550 s top speed is around 60 70 mph, and acceleration is sluggish compared to modern bikes. It s not built for high-speed cruising or aggressive riding.

5. **Rust and Wear** Older bikes, especially those from the 1970s, may suffer from rust in the frame, suspension, or drivetrain. A thorough inspection is critical before purchase.

6. **Parts Availability** While basic parts are easy to find, some specialized components (e.g., OEM carburetors, specific seals) may require sourcing from vintage dealers or eBay. Not all mechanics are familiar with older Suzuki models.

7. **Legal and Insurance Issues** Some regions have restrictions on older bikes, particularly regarding emissions or safety standards. Insurance may be more expensive due to the bike s age and lack of modern safety features.

8. **Resale Value** Classic bikes hold value if well-maintained, but the GT550 is not a highly sought-after collector s item. Resale potential is limited unless it s in pristine condition.

9. **Maintenance Intensity** Despite its simplicity, the engine requires regular attention valve adjustments every few thousand miles, chain maintenance, and carburetor tuning. Neglect leads to premature wear.

10. **Limited Aftermarket Support** Compared to popular modern bikes (e.g., Honda CBR, Yamaha MT), the GT550 has a smaller aftermarket. Finding enthusiasts or forums for troubleshooting can be harder.

---

### **Conclusion**

The Suzuki GT550 (1973 1977) with the **25310-31910 cam drum** is a **great choice for someone who values simplicity, affordability, and a nostalgic riding experience**. It s ideal for:

- **Budget-conscious riders** who want a low-cost, low-maintenance bike.

- **DIY enthusiasts** who enjoy working on their own machine.

- **Light-duty use** (commuting, farm work, casual riding).

- **Collectors or restorers** who appreciate classic motorcycles.

- Riders seeking modern comfort, power, or speed.

- Those who prioritize fuel efficiency or long-distance touring.

- People who want minimal maintenance or advanced features.

If you re buying one, **inspect it thoroughly** for rust, engine condition, and mechanical soundness. A well-maintained GT550 can be a fun, reliable companion, but its limitations should be understood before purchase.

---

### **Recommendation**

- You re okay with its limitations and enjoy the simplicity of an older bike.

- You plan to use it for light, occasional riding rather than daily commuting or high-mileage use.

- You re prepared to perform basic maintenance yourself or have access to a mechanic familiar with vintage Suzukis.

- You appreciate its vintage charm and don t mind trading off modern conveniences for affordability.

- You need a bike for frequent long-distance riding or high-speed travel.

- You want a bike with modern features like fuel injection, suspension tuning, or advanced ergonomics.

- You re unwilling to invest time in upkeep or don t have access to parts/mechanics for older models.

- You re looking for a high-resale-value or performance-oriented machine.

For a balance between classic appeal and modern practicality, consider a **restored or lightly used GT550 with a clean title and service records**. If you re open to spending slightly more, a **modern retro-style bike** (e.g., a Yamaha XS650 or Honda CB500) might offer better comfort and reliability without sacrificing too much vintage charm.

Details:

THIS ITEM WAS TAKEN OFF OF A 1974 GT550. GT550 1973: 1974: 1975: 1976: 1977.

part #: 2531031910 prices

• $29.99-$59.99

specifications cyclevintagee:

• for models: Gt550, Gt, 550
• for makes: Suzuki
• mpn: 25310-31910
• type: Shift Cam Drum
• machine type: Street Motorcycle
• color: Silver
• item diameter: 0.125 In
• universal fitment: No
• vintage part: Yes
• compatible year: 1972
• country of origin: Japan

returns cyclevintagee:

• policy: Returns Accepted
• time: 30 Days
• paid by: Buyer

general cyclevintagee:

• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories
• condition: Used

seller cyclevintagee:

• rating: 100.0%
• city: Middleburg, Florida
• # reviews: 13215

shipping cyclevintagee:

• service: FedEx Ground Economy, USPS Ground Advantage, UPS Ground Saver, USPS Priority Mail
• type: Calculated
• transit: 4-10 Days
• cost: $10.70
• class: Economy, Standard, Expedited
• carrier: FedEx, USPS, UPS

payments cyclevintagee:

• wallet: Apple-pay
• credit card: Diners-club
• other

offer cyclevintagee:

• sold: 0
• quantity: 1
• options: Ship-to-home
• started: March 3, 2026
• availability: In Stock

Suzuki 25310-31910 Is Similar To:

• 00044-01270 Nos Suzuki Oem Air Box Boot (27.4% similar) Original suzuki part...(August 2nd, 2018)
• 01111-05108 Suzuki Nos Oem Engine Bolts Qty Tc (29.4% similar) Not looking at the pictures, reading. As this stops us from selling the item to someone else who needs. Suzuki nos oem engine bolts qty 2 Tc part 05108THIS is for a new. What you see in the pictures is get, nothing more less. They will not look like new parts. 1 mile south of town on M-19. Please ...(April 16th, 2018)
• 02112-05107 08321-01057 08322-01057 Suzuki New Genuine Oem Screws Lock And Flat Washers (23.8% similar) For all 6 pieces free shipping. They are, new genuine oem suzuki 5X10 screws, lock and flat washers...(June 15th, 2018)
• 03221-03088 Suzuki Nos Oem Screw (31.8% similar) Nos oem suzuki screw bolt questions. Call billy at tired iron classics...(October 2nd, 2017)
• 08123-62027 Oem Suzuki Nos Rm80 (23% similar) Nos oem suzuki RM80 RM100 RM250 RM400 rear wheel bearing...(August 11th, 2017)
• 08331-41478 08331-41479 Suzuki Qty New Oem Circlip (25.9% similar) Please research this part number to make sure is correct for your model and year before buying or purchasing. This listing is for qty 5 new oem suzuki cir clip superseded by 41479EVEN though your model may be in the title, don't assume part fits year. This part may also fit other model's than what I...(December 2nd, 2018)
• 09150-06014 09150-06010 Suzuki Nos Oem (22.9% similar) The pictures are of real item for sale. They can show some shelf wear, dusty, but are new and unused. Shipping: we mostly use USPS, but sometimes FedEx and ups for heavier packages. Robles or issues. About the item: this is a new nos part. All parts are new old stock...(January 27th, 2019)
• 09180-15046 Suzuki New Oem Gs250 (34.1% similar) This part may also fit other model's than what I have listed in the title. Please research the part number to make sure this is correct for your model and year before buying or purchasing. Not all years use the same part number...(October 30th, 2017)
• 09180-20025 09180-20076 Suzuki New Oem (22.9% similar) Not all years use the same part number. This part may also fit other model's than what I have listed in the title. Please research the part number to make sure this is correct for your model and year before buying or purchasing. Superseded even though your model may be in the listing title, don't ...(November 3rd, 2017)
• 09262-20003 Suzuki Oem Lt250r S32-2 (35.2% similar) Each item is sold as. If your application is not listed as fitting, do purchase it. You get 1-NEW crank bearing 20X47X09. Parts come in every day. After you purchase an item, it is yours. The shipping price is based on weight and measurements of box. S32-S 1968 -RIGHT side crank. Suzuki LT250R ...(October 16th, 2017)
• 09263-26014 Suzuki New Oem Bearing (31.1% similar) This part may also fit other model's than what I have listed in the title. This listing is for one 1 new oem suzuki bearing 26014EVEN though your model may be in the title, don't assume part fits year. Not all years use the same part number. Please research this part number to make sure is correct ...(October 13th, 2018)