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Description
Take your performance to new heights with a Jet Kit for your vehicles. Increase power and improve performance throughout the entire RPM range, while improving throttle response and smoothness. These Jet Kits take the guesswork out of tuning your vehicles.
Whether you’re rolling with a stock vehicles or you’ve made some modifications, our Jet Kit will optimize your air/fuel ratio to eliminate rough spots and help you take control of your vehicles’s power. You can go with a Stage 1 Jet Kit to give your stock engine a 5% boost of horsepower or send it all the way up to Stage 3 if you’ve already made major modifications to your vehicles.
STAGE 1 DETAILS
Perfect for vehicles with a stock engine using the stock airbox, air filter, and pipes. Stage 1 Jet Kits are engineered to improve throttle response and deliver approximately 5% more horsepower than stock. These kits are fully adjustable to allow the use of well-designed aftermarket pipes and stock replacement air filters, like K&N.
STAGE 2 DETAILS
If you’ve made slight modifications to your vehicles, but still crave more performance, a Stage 2 Jet Kit is the solution. With a Stage 2 Jet Kit, you could see power gains of approximately 8%. This kit is intended for vehicles with stock or mildly tuned engines using a well - designed aftermarket pipe with a modified airbox and a stock replacement air filter.
FEATURES
- 5-8% power range.
- Fully adjustable.
- Increases power and drivability.
- For carbureted vehicles only.
Technical Specifications
- MFG. Part Number 3243
Vehicle Information
Yamaha XS1100 Motorcycle - Street (1978-1981)
The Yamaha XS1100, produced from 1978 to 1981, was a powerful air-cooled, DOHC inline four-cylinder motorcycle. Renowned for its robust 1101 cc engine, it consistently delivered 95 hp and 90 Nm of torque, establishing itself as a formidable touring and performance machine of its era. It was offered in various trims, including the Standard model, the custom-styled Special, and the distinctive black and gold Midnight Special. A European Sport model with improved suspension was also available in 1981. While the core engine design remained, a notable revision occurred in 1980. To meet evolving emission standards, the compression ratio was slightly lowered, and valve sizes were adjusted, along with carburetor jetting. The kick starter was also removed. Although Yamaha maintained official performance figures, period tests suggested a slight reduction in output for 1980-1981 models. The 1981 European Sport model further introduced suspension improvements, including air-assist forks and four-way damping rear units. FAQ:
Q: Is this product compatible with my Yamaha XS1100?
A: To ensure perfect compatibility, please use the year and model selector at the top of the page. This will filter products specifically designed for your motorcycle.
Maintenance
| Component | Interval | Details |
| Engine Oil | Initial: 1,000 km or 1 month. Thereafter: every 5,000 km or 6 months. | Always warm up the engine before draining the oil. |
| Oil Filter | Initial: 1,000 km or 1 month. Thereafter: every 10,000 km or 12 months. | |
| Spark Plugs | Initial inspection/cleaning: 1,000 km or 1 month. Initial replacement: after 13,000 km. Thereafter, inspection/cleaning: every 5,000 km or 6 months. | |
| Air Filter | Clean or replace as needed. | Dry-type element. Do not run the engine without the air cleaner element installed to prevent excessive piston and/or cylinder wear. |