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Manufacturers: MRCM , Zenoah

Full Mod Zenoah 300 PUM

$595.00
This our fully modified Zenoah 300 marine motor .
Manufacturer part number: MRCM -300PUM-FULL
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We start with a 300 Pum and build from there .

Zenoah 300 PUM marine motor - 29mm stroke x 36mm bore = 29.5cc

  • Modify the cylinder to get the correct head clearance .
  • Relieve & modify the piston .
  • Hand modify the exhaust / intake / & transfer ports .
  • Hand check all components for straightness & proper tolerences .
  • Hand fit & reassemble to our specs for your hull type .
  • Install zero drag seals .
  • Modify carb .
  • Install NGK sparkplug .
  • Dyno-test .
  • choice of carb - wt 257 / wt 1048

Plus other options .

Please allow approximately 2 weeks build time .

We start with a 300 Pum and build from there .

Zenoah 300 PUM marine motor - 29mm stroke x 36mm bore = 29.5cc

  • Modify the cylinder to get the correct head clearance .
  • Relieve & modify the piston .
  • Hand modify the exhaust / intake / & transfer ports .
  • Hand check all components for straightness & proper tolerences .
  • Hand fit & reassemble to our specs for your hull type .
  • Install zero drag seals .
  • Modify carb .
  • Install NGK sparkplug .
  • Dyno-test .
  • choice of carb - wt 257 / wt 1048

Plus other options .

Please allow approximately 2 weeks build time .

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