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Part 01 • CG 89 225cc with 70.5mm zayima piston ... Part 03 (Cylinder head preparation) • CG 89 head preparation with 225c... Part 04 (Auxiliary breather through the oil dipstick) • Auxiliary breather through the oil dipstick ... Part 05 (Increasing the crankcase breather) • Increasing the engine breather, to re... Part 06 (Cases sandblasting) • Sandblasting the CG 225 engine... Part 07 (Rate calculation and finished engine) • Finished engine, 70mm zayima piston ... Part 08 (Engine adaptation to the frame) • Adaptation of the 150 engine in the CG 89, t... Raffle 01 DORE exhaust or 1,200 in pix 👇👇👇👇👇 https://rifa.digital/s/escapamento-do... You can find everything in our store on Mercado Livre or Mercado Shops 👇👇👇 https://www.soundmotors.com.br/ SOUND & MOTORS store on Mercado Livre 👇👇👇 https://lista.mercadolivre.com.br/_Cu... My Instagram 👇👇👇 https://www.instagram.com/reel/Cv0qEw... #RelievedValves #valves #enginepreparation #preparation