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    End of My Rope...Fuel Problem

    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...
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    76 Roughneck Rebuild

    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.
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    71 Thunderbolt 800 Tilt and Trim Cylinder Bracket Removal Issue

    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...
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    Motorwell Boot Measurement

    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...
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    Motorwell Boot Measurement

    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...
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    1976 Fiberglass Roughneck Transom Iissue

    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...
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    71 Thunderbolt 800 Tilt & Trim rewire Question

    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...
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    Thunderbolt 800 Choke Question

    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...
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    Thunderbolt 800 Carb Rebuild Issues

    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...
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    Thunderbolt 800 Carb Re-kit Question

    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...
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    71 Thunderbolt 800 - Fire in the Hole - Finally

    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...
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    71 Thunderbolt 800 - The Plot Thickens - Distributor Travel and Throttle Issue

    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...
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    OK, So Everyone Needs a Good Laugh Once-In-A-While...

    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...
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    Now I Understand "Lucky Me"!

    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...
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    Thunderbolt 800; Best Manual

    I have a 1971Thunderbolt 800 and have read a number of posts saying that the manual they had for their motor was not covering what was needed. What would be the Best Manual or Manuals to get for my motor to cover the widest range of things with the best detail? Thanks.:confused:
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    Help with parts location and distributor travel

    I have two parts here that I can't seem to locate where they attach they are a part of the control cable linkage setup if I am correct. I have looked at diagrams but they just show the exploded view of parts and I have no pics of their location. They are # 50 and # 51 in the exploded parts...
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    I've Wanted One Of These All My Life

    For many years I would be driving down the road and see one of these 70's era bass boats and think Wow, I wish I had one of these. Finally I had the chance and jumped on it. Probably, considered by some, not the brightest thing I have ever done but it started the fulfillment of a dream. It...
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    Thunderbolt 800 Wiring Harness

    All the wiring in my old harness has cracked and brittle insulation so I went to order a new wiring harness from here on iboats and found this: 80 800 4 1970 3051041-3059820 414-2770 80 800 4 1971 3144219-3192962 414-2770 In an earlier thread I was told that my Serial#, 3052262, was a 1971...
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    Thunderbolt 800 Control Cable Issues

    I received my new control cables today and went to put them on but I need a diagram of how they attach at the enging and will probably need one for the control head as well. Where should I look to find something like this?
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    Thunderbolt Distributor Part

    I have been unsuccessful in finding the pictured part for my thunderbolt 800 distributor except in a distributor kit not for my engine. Can these parts be purchased separately and if so where? I need 2 ea.:)
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