I am new to the site and need help! I have a 1985 DT65 on a 19' Carolina Skiff that I just purchased. Cranks and idles perfect (since I rebuilt the carbs), runs fine without being under load but boggs down under load. I have tried everything and have read several post's on this site and it sounds like i've checked most things...
What seems wierd to me is that I can let my buddy drive the boat with the cowl off and use the choke flaps to cut the air intake by 50% and the motor picks up and runs great! It will run for as long as you desire working the throttle up and down (1000-3000 rpms). As long as the motor stays above 1000 rpm's you can get back into it and it runs great. I can put back into neutral and shift into gear, fine....trolls great. Advance the throttle and it wants to die. Use the flaps to shut the air in half and it picks up. I then open the flaps all the way and off we go again! Why will the motor run so good full throttle and trolling but won't get-up and go without restricting the air??
Thanks for any help!
What seems wierd to me is that I can let my buddy drive the boat with the cowl off and use the choke flaps to cut the air intake by 50% and the motor picks up and runs great! It will run for as long as you desire working the throttle up and down (1000-3000 rpms). As long as the motor stays above 1000 rpm's you can get back into it and it runs great. I can put back into neutral and shift into gear, fine....trolls great. Advance the throttle and it wants to die. Use the flaps to shut the air in half and it picks up. I then open the flaps all the way and off we go again! Why will the motor run so good full throttle and trolling but won't get-up and go without restricting the air??
Thanks for any help!