1994 - 2006
YAMAHA TT R 250
Iridium spark plug
| DENSO
DENSO
Fits to:
YAMAHA TT-R 250 [1997 - 2006]
YAMAHA TT-R 250 [1994 - 2003]
Specifications
| Manufacturer | DENSO |
|---|---|
| Heat range | 27 |
| Model | Iridium Power |
| Terminal configuration | threaded Stud |
| Thread size | 10 mm |
| Style | IU27A |
| Type | Resistor Type |
| Units | Each |
| Center electrode type | Fine Wire |
| Electrode tip material | Iridium |
| Center electrode projection | Non-Projected |
| Thread reach | 19,1 mm (3/4") |
| Hex size | 16 mm (5/8") |
| Spark gap | 0,9 mm (0.035") |
| Ground electrode shape | Angled |
| Electrical resistance | 5k Ohms |
| Spark gap imperial | 0.035" |
| Spark gap metric | 0.9 mm |
Product description
Six times harder than platinum, iridium withstands temperatures up to 4,000°F Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves 360° laser welding of electrode provides a seal that resists wear even in the worst conditions Ground electrode features a tapered cut and U-groove that form a large volume area for the flame's center