FORUM RULES UPDATED - The forum rules have been updated to continue to provide a friendly and safe environment for our member community. Please take a moment to review the updated rules and our terms of use and privacy policy. Click here for Forum Rules which has links to the 'terms of use' and 'privacy policy'.
Hello all, I just bought a 2005 Glastron GX-205 with a 5.0L Volvo Penta engine. When I tested out the boat it ran good on water and would go 35mph no problem. Just took it out this past weekend and it won’t go fast all anymore. Just stays at 10pm at full throttle. A couple times it would go full...