K&N Air filter GV125

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This topic has 2 replies, 2 voices, and was last updated 4 years, 12 months ago by Alan McLean.

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- Oct 31, 2021 at 10:24 AM #6527
  
  Alan McLean
  Participant
  
  Hi, everyone. Since making the changes to my GV125 (main jets, plug cap’s and coil’s) the bike is running well but feels like the breathing is restricted. Has anyone fitted a K&N or similar air filter to the GV125?
- Nov 3, 2021 at 5:25 PM #6544
  
  ♠️ M77
  Keymaster
  
  Can you show us when you get a chance what the center of the spark plugs look like ?
  
  K&N doesn’t exist for the GV125, however, the panel filter & airbox flows enough air to power a 250cc. I wouldn’t worry too much here. The GV250 carby uses the same airbox. GV250 EFi Injected & Carby use the same air filter as the 125GV Carby.
  
  Lets see the analysis of your plugs i’ll determine what’s going on in the piston chambers.
- Nov 4, 2021 at 9:42 AM #6554
  
  Alan McLean
  Participant
  
  Very valid points Marcel regarding the 250 airbox and filter, I will pull the plugs when I get a chance and send a pic of both front and rear.👍
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FORUM ARCHIVE: Boards are now read-only as archives. For bike service manual downloads, parts shop, or to read more about the forum changes, tap here to read more....

This topic has 2 replies, 2 voices, and was last updated 4 years, 12 months ago by Alan McLean.

Viewing 2 reply threads

Author

Posts
- Oct 31, 2021 at 10:24 AM #6527
  
  Alan McLean
  Participant
  
  Hi, everyone. Since making the changes to my GV125 (main jets, plug cap’s and coil’s) the bike is running well but feels like the breathing is restricted. Has anyone fitted a K&N or similar air filter to the GV125?
- Nov 3, 2021 at 5:25 PM #6544
  
  ♠️ M77
  Keymaster
  
  Can you show us when you get a chance what the center of the spark plugs look like ?
  
  K&N doesn’t exist for the GV125, however, the panel filter & airbox flows enough air to power a 250cc. I wouldn’t worry too much here. The GV250 carby uses the same airbox. GV250 EFi Injected & Carby use the same air filter as the 125GV Carby.
  
  Lets see the analysis of your plugs i’ll determine what’s going on in the piston chambers.
- Nov 4, 2021 at 9:42 AM #6554
  
  Alan McLean
  Participant
  
  Very valid points Marcel regarding the 250 airbox and filter, I will pull the plugs when I get a chance and send a pic of both front and rear.👍
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