1971 Thunderbolt 800, third year working on it. New Fuel tank; new lines all the way from tank to carbs; fuel pump rebuild; carb rebuild with new floats and jets. I get plenty of gas to carbs but not to cylinders, all four plugs dry . When I manually put fuel in cylinders it starts right up...
After what seems like foreve,r I have almost finished my project boat being used primarily for Jug fishing. Flooor replacement, Transom rebuild, Durabak deck and cap treatment and jug carrier. Thought I'd show this. Egine has to be mounted yet but Ya'll have helped much so here goes.
I am unable to remove the bracket at the Long tie bolt pictured in these photos and figure 8 of the origional service manual under Installing Hydraulic Cylinders on page 671. The bolt has no head but rather nuts on each end. They have been removed. The long Nylock screw has been removed. I...
I am still in need of this information and haven't been able to find anything on it can someone help please. Thanks
I am replacing my motorwell boot and I am unsure of how measurements are plotted. My old boot is 5 1/2" in diameter at the flange of the boot (OD). My boot hole in the...
I am replacing my motorwell boot and I am unsure of how measurements are plotted. My old boot is 5 1/2" in diameter at the flange of the boot. My boot hole in the motorwell is 4" When I read the replacement boot sizes they do not specify if outside diameter or hole diameter. Can anyone here...
After pulling the motor on my Roughneck I found some issues and would like some advice as to how I can handle it. Here is the first thing I found when I removed the motor mount bolts...
...when I saw this I had some major concerns about the integrity of the transom. Then I probed the bolt...
I have encountered some bad wiring on the tilt and trim for my Thunderbolt 800. My question is has anyone replaced this wiring before and if so, any advice? I believe there is a plate that I can remove to get to the wiring but I'm not certain. I checked my original Service Manual but it covers...
Re: I've Wanted One Of These All My Life
My last post was more than a month ago but I haven't been idle. I have been working on the power for this boat as reflected here on the Mercury section of the forum listed under Thunderbolt 800 topics. I have also worked a little on the boat itself by...
After the carb re-kit, I got her all buttoned up and took her to the boat ramp to test her running. It took a few minutes of cranking to get her started but she did and she raced so I shut her off. After a few tries we manually worked the choke and she ran great but when letting the choke go...
I'm in the middle of re-kitting my Thunderbolt 800 Carbs and have encountered a problem. Whoever worked on these carbs previously must have used gasket seal on everything. The gasket seal material was found inside and out on these carbs. That really isn't the problem however. The real issue...
I need to re-kit my two Thunderbolt 800 Carbs but I was told by someone here that they are very tricky and I should just take it in to have it done. I have re-kitted auto carbs years ago and would like to save the dollars of having a boat mechanic do it. Is what this guy said true or is it...
Finally, tonight she fired up. It wasn't perfect but SWEET was the sound. Now some carb work and then adjustments and she should be lake bound. You all have been so kind as to help me out from the very start and I hope you feel some satisfaction in the small success of this as well . I...
It has been a while since last posting and in that time I have replaced the ignition system with the CDI kit that included Switchbox, coil and distributor and trigger. Adding to that all the stuff I did before, there has been quite a bit of work done. My distributor still only travels about...
I think of this as my Cove Boat. Since I live on a pretty nice fishing cove with an area of thick stumps I needed something small to just get away from it all. This is a Pelican Paddle boat stripped of it's paddles and equipped to do some fishing and Jugging in the cove. It has a 40# thrust...
Continuing the Switch box saga from: http://forums.iboats.com/showthread.php?t=462933 I pulled the switch box today and found the following P/N: 337-4411. Then I researched the CDI Replacement and wouldn't just know, I have to have a full kit at over $400.00.:eek: Yep, "Lucky Me" . I don't...
