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Intake and exhaust valve set by Duells for russian K-750 M72 motorcycles
| Manufacturer: | Duells |
|---|---|
| Manufacturer id: | 306158 |
- made on the model of the original
- higher quality goods
- non-magnetic
- exhaust valve length: 137 mm
- stem diameter: 9.00 mm
- plug diameter: 38 mm
- intake valve length: 137 mm
- stem diameter: 9.00 mm
- plug diameter: 38 mm
Duell Bike-Center Oy, Niittyhaankatu 20, 33720, Tampere, FI, [email protected]
Product reviews
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The valves make a good impression. I use them in an M72. The dimensions correspond to the original parts, except for the stem diameter, which is 9mm and a touch more. Not quite half a mark on the micrometer. Very good when used in running cylinders. If the valves are to be fitted new in the factory, the guides may need to be reamed a little. Not a problem in my case, as K-Line guides are fitted in the cylinders anyway and these have to be reamed to size in any case. I particularly like the constriction just before the valve plate. This prevents carbon deposits from jamming the valve. With the original valves, I otherwise drilled out the guides at the bottom.
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