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Old 01-19-2010, 10:14 AM   #1 (permalink)
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Replace Seat on 86 Phazer

Help! We bought a couple used sleds and one is an 86 Phazer. The seat is falling off and the plywood is old. How do you go about taking the seat off and replacing the plywood? I don't want to spend 100+ on a new seat, just need it to be attached to the sled. We use it mainly for short rides and pulling kids. thanks!
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Old 01-19-2010, 10:35 AM   #2 (permalink)
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There is a stud coming down from the seat into the tunnel about a foot in from the rear of it. Remove the nyloc nut, lift up an inch & slide the seat back a foot or till you can disconnect the tail lights wire. Then it's free to come off. I found a 1988 Venture seat for my 1988 Phazer.
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Old 01-19-2010, 10:42 AM   #3 (permalink)
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phazer seat

Thanks! Yeah, what happened is the seat cover is tearing all over the place and then my son's on the sled and the back part just falls off-the compartment part. The bottom of the comparment has bolts and pieces of plywood attached to it. So what's my best option besides spending 150 on a new seat? Is there a way i can put some new plywood on and re-attach it? thanks!
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Old 01-19-2010, 10:53 AM   #4 (permalink)
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New marine grade plywood and take the old seat top an auto upholsterer (or do it yourself)
and have a new cover made.
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Old 01-19-2010, 11:07 AM   #5 (permalink)
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phazer seat

When reading my questions, please keep in mind that i am living proof that there are no such thing as stupid questions, just stupid people asking questions. With that in mind: so if i unscrew the bolts near the front of the sled, the whole seat is off. then i put the plywood back on the sled and attach with new bolts through the 2 holes in front and the two holes through the compartment?
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Old 01-19-2010, 11:09 AM   #6 (permalink)
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Correct.
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Old 01-19-2010, 11:22 AM   #7 (permalink)
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phazer seat

Thanks again! One more question: what type/size of bolts/screws would you recommend? the ones on there are pretty well shot. i just want to be able to attach it and not worry about it falling off--again!
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Old 01-19-2010, 11:55 AM   #8 (permalink)
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Use a large flat washer under the tunnel.
Otherwise same size bolts.
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1980 AC Pantera (donor engine to the 90 wildcat)


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Old 01-19-2010, 07:22 PM   #9 (permalink)
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not to throw any confusion on this, but the yamaha seats i have worked on in the past actually had a platic piece at the front, and another at the rear that was attached to the plywood via rivets with flat washers. the front piece of plastic formed to the tank and the rear made the trunk. the plywould separates the plastic and allows an anchor point for the seat cover as well as the foam. plastic recieves staples as well. i always used 1/4" plywood for replacement, although i think factory was 3/16". skip the expensive marine grade and prime with a oil base exterior primer, or any weather resistant sealer. it will last a long time. rivets would be a 3/16" diameter with a 1/2" grab.
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Old 01-19-2010, 07:38 PM   #10 (permalink)
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phazer seat

Yep, that's what I am seeing. So here's the issue: the front part of the seat is in good shape, but the vinyl is missing near the back, so the compartment just fell off the sled. when i looked at it, there was obviously plywood/rivots in place, but i'm guessing they came loose and that's why the comparment fell off. If I just bolt the compartment back on thru the tunnel, do you think that would work? then with the middle area where i just have foam, when i put some vinyl over it, what do i staple it to? as you can tell, i am not going to spend 150 to get a new seat cover; it's an old sled but runs very well, i'm just trying to make sure the compartment area with the taillight is operable and also see if i can put some makeshift vinyl/tape on the rest but not sure where to staple it. thanks a million.
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Old 01-19-2010, 08:07 PM   #11 (permalink)
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the plywood actually gives the seat it structure and lateral integrity. if you were to skip the plywood, what will happen is the seat will want to slide side to side while riding and in my opinion would create a safety hazard. the plywood is easily obtained, usually cut to size, from your local lumberyard or home center, for under $10. all you have to do is seal it wth anything, concentrating on the edges. get a can of 3M77 spray adhesive and a staple gun and do it right. hardest part is salvaging enough of the delaminating plywood to get an accurate size and duplicate the rivet placement.
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Old 01-20-2010, 08:34 AM   #12 (permalink)
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phazer seat

Yeah, i see your point. So i would basically glue the plywood onto the sled and then staple the vinyl onto the plywood?
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Old 01-20-2010, 12:45 PM   #13 (permalink)
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This is going from memory but I think this is accurate: You need to attach the front and back plastic parts to the new plywood so you end up with one piece/structure made up of all those parts, then place the foam onto that structure, and then stretch the vinyl over the whole thing and staple to the underside of the plastic/wood piece, then rebolt to the sled.
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Old 01-20-2010, 01:13 PM   #14 (permalink)
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phazer seat

Yeah, that makes sense. I'll try all that and if it doesn't work well, i'll go to plan b. Thanks for the input!
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