- New
TWIN AIR Fast Fit Exhaust Plugs Pack 2&4 Stroke
€73.90
Tax Included
A part of the exhaust power valve, the system that gives a two-stroke low-end torque and top-end power.
TWIN AIR offers this power valve. Many two-stroke engines have an exhaust power valve: a blade that changes the height of the exhaust port according to revs.
Why replace this part?
The benefits:
- An engine that pulls low down and up top again.
- Replace a worn, sticking or broken part.
- Precise valve operation at all revs.
Why choose TWIN AIR?
Twin Air invented the dual-layer foam filter in 1972 and is original equipment for more than 30 manufacturers: fine filtration, washable and reusable.
When should you replace this part?
A scored or oval cylinder, or one with damaged plating, loses compression and wears the piston quickly. Measure the bore at every top-end rebuild: beyond the wear limit the cylinder must be replaced or resleeved.
Specifications and fitting tips
- Manufacturer part number: 177711NN
Cross-Mania tip: Check the diameter of the supplied or required piston and replace the top-end gaskets. A big bore may require carburation or fuel-injection adjustment.
Compatibility
Universal part: check the dimensions given before ordering.
177711NN
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Specific References
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A part of the exhaust power valve, the system that gives a two-stroke low-end torque and top-end power.
TWIN AIR Fast Fit Exhaust Plugs Pack 2&4 Stroke
€73.90
Tax Included