Namura Top End Repair for Yamaha 1998-2005 800 PWC Standard Bore 80mm SEE LIST
Namura Top End Repair for Yamaha 1998-2005 800 PWC Standard Bore 80mm SEE LIST
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Top End Repair Kit for Yamaha
This top end repair kit for Yamaha 800 PWC models from 1998 to 2005 includes a piston, rings, pin, and circlips at standard 80mm bore to restore compression and engine performance. OEM cross-reference numbers are available through the included compatibility list for this top end repair kit.
Overview
This top end repair kit for Yamaha 800 PWC engines provides all components needed to rebuild the upper cylinder assembly at the standard 80mm bore size. Designed for Yamaha 800 personal watercraft from 1998 through 2005, this top end repair kit restores lost compression and extends engine life without requiring cylinder boring or machining work.
Built For Performance
- Complete piston, ring, pin, and circlip set for a full top end rebuild
- Standard 80mm bore dimension eliminates the need for cylinder boring
- Namura components manufactured to match OEM specifications for reliable fit
- Restores compression and peak power output in Yamaha 800 PWC engines
- Compatible with multiple Yamaha 800 model years from 1998 to 2005
Fits These Machines
- for Yamaha 800 PWC 1998-2005 (see included list for specific model compatibility)
On-The-Job Use
- Rebuilding top end on Yamaha 800 PWC engines during scheduled maintenance intervals
- Restoring compression on personal watercraft with high operating hours or lost power
- Replacing worn piston and ring assemblies to prevent engine performance degradation
Specs At A Glance
| Part Number(s) | See list for specific cross-reference |
| Bore Size | 80mm Standard |
| Application | Yamaha 800 PWC 1998-2005 |
Good To Know
Q: Does this top end repair kit include a wrist pin and circlips? A: Yes, the kit includes the piston pin and circlips along with the piston and rings for a complete top end assembly.
Q: Can this kit be installed without removing the engine from the watercraft? A: Top end repair can typically be performed with the engine in the hull, though access requirements vary by specific model and year.
Slight variation in finish or dimensions may occur between production runs, and confirm compatibility before ordering.
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