Mark de Rooy Profile Topics Started Replies Created Search topics: Forum Topics Started Viewing 5 topics - 1 through 5 (of 5 total) Topic Voices Posts Last Post Front cylinder not firing – GT650 Started by: Mark de Rooy in: 🔧 Hyosung Technical Help 2 4 9 months, 1 week ago ♠️ M77 Changing switch gear – Hyosung GT650R Left / Right SW Started by: Mark de Rooy in: 😃 General Chat 2 2 1 year, 7 months ago Simon Miss and backfire under 5k only after engine warms up – 2009 GT650R Started by: Mark de Rooy in: 🔧 Hyosung Technical Help 3 55 1 year, 7 months ago Mark de Rooy Dash light problem – GT650 EFi Started by: Mark de Rooy in: 🔧 Hyosung Technical Help 2 4 1 year, 9 months ago ♠️ M77 650 gtr won’t idle and misfiring Started by: Mark de Rooy in: 😃 General Chat 3 43 1 year, 10 months ago ♠️ M77 Viewing 5 topics - 1 through 5 (of 5 total) Profile Topics Started Replies Created Search topics: Forum Topics Started Viewing 5 topics - 1 through 5 (of 5 total) Topic Voices Posts Last Post Front cylinder not firing – GT650 Started by: Mark de Rooy in: 🔧 Hyosung Technical Help 2 4 9 months, 1 week ago ♠️ M77 Changing switch gear – Hyosung GT650R Left / Right SW Started by: Mark de Rooy in: 😃 General Chat 2 2 1 year, 7 months ago Simon Miss and backfire under 5k only after engine warms up – 2009 GT650R Started by: Mark de Rooy in: 🔧 Hyosung Technical Help 3 55 1 year, 7 months ago Mark de Rooy Dash light problem – GT650 EFi Started by: Mark de Rooy in: 🔧 Hyosung Technical Help 2 4 1 year, 9 months ago ♠️ M77 650 gtr won’t idle and misfiring Started by: Mark de Rooy in: 😃 General Chat 3 43 1 year, 10 months ago ♠️ M77 Viewing 5 topics - 1 through 5 (of 5 total)