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  1. Grom doesn’t pull in 4th gear after Koso camshaft install

    Grom Performance
    Hello, Im new here and I apologize if this has been asked and answered already but I recently installed a Koso cam on my grom and 4th gear kinda sputters and doesn’t pull. Also all gears are slower in lower rpms until I hit over 6-7k. I know my timing isn’t off I checked and rechecked over and...
  2. fuel controller advice

    Grom Talk
    Ive been researching the forum for weeks and have not found a comfortable solution to my problem. I would like to max out the potential with the stock bore. I already have a Two brothers exhaust, and chimera intake. In the near future I will be adding a Yoshimura performance cam and Finbro 125...
  3. WTB Finbro Performance Engine parts

    Parts for Sale / Wanted
    Currently on my shopping list for the new season is the following: (Prices are for new parts) -Finbro Built 125cc head $150 -Finbro ECM $150 -Finnro Race piston $100 -Finbro camshaft $100 If anybody has these parts or similar, I am interested.
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