Yamaha Starbike Forum banner

1 - 10 of 10 Posts

·
Registered
Joined
·
12 Posts
Discussion Starter #1
So I was reading up about modifying the stock seat, and I have an idea of the shape I'm going after, but I'm stuck on one aspect. I do not have an air stapler, nor access to one! I don't want to have to buy an expensive tool just to do a cheap modification, as it would be more cost effective to just buy a new seat in that case. My question is, can I use anything else besides staples to fasten the material back? Short screws with washers? Holes with string (twine, yarn, leather binding?), ANYTHING else? I know I can rent something, and if that's the route, but I don't even own an air compressor. Some enlightenment from all the knowledgeable would go a long way in the decision I need to make! Cheers.
 

·
Registered
Joined
·
6,696 Posts
I pulled the cover off the stock seat on my VS650, carved the foam down to make a tail bone channel in the middle, added some foam to the front to stop me from sliding forwards everytime I hit a bump

then put the original cover back on.

I used very short sheet metal screws with washers on them. The base of the seat is pretty thick plastic. Cant remember if I used #4 or #6 screws - used maybe half as many as the number of staples.

It is rough on the wrist putting all those screws into the plastic, but it worked out well. Seat was much more comfortable after the mods.

Have you found the motorcycle DIY seat mod website? Home

carving the foam down with a 4 1/2" angle grinder sounds insane, and it works amazingly well - as long as you only wipe the foam in the "pulling" direction, and dont push the edge of the wheel into the foam.

Practice on some closed cell foam before you touch the seat with it. And do it outside.
 

·
Registered
Joined
·
12 Posts
Discussion Starter #3
Awesome! I was concerned the screws may affect the vinyl by tearing it, but sounds great. I won't be using an angle grinder, I will be using a hacksaw blade and some sandpaper, then glueing some carpet underlay to the top, as to make a dual density seat of sorts (650ccnd mod). Glad I got such a quick reply, as I have almost all morning to complete this mod. This afternoon is supposed to be sunny and warm, and wouldn't mind getting out and testing my new bars and seat together.
 

·
Registered
Joined
·
6,696 Posts
practice with your cutting blade and sandpaper on scrap foam then.

I tried cutting foam with a box cutter, and it was pretty crappy.

the angle grinder is like spreading soft frosting with a warm knife.

If you have a dremil tool then a sanding drum might work.

If you are worried about the washers on the covering material, get oversized washers - they call them fender washers.
 

·
Registered
Joined
·
12 Posts
Discussion Starter #5
Haha thanks, I’m well versed when it comes to construction materials and fasteners. I started my carpentry when I was first able to use a table saw, and have been taught traditional methods for many years. I’m good with metal work as well, just don’t have all the necessary tools associated, and the knowledge for seat modification is lacking as this would be the first time. I appreciate all the help though, as this is my first mod of this kind.
 

·
Registered
Joined
·
6,696 Posts
I was anxious when I decided to tear into my seat. I could not ride for more than half an hour without my butt going numb.

I figured if I screw the seat up I will have to get another one, and if I dont modify my seat I will have to get another one anyway... so there was no way to lose.
 

·
Registered
Joined
·
176 Posts
I was anxious when I decided to tear into my seat.
I'm interested as well. Please take some pic as to where you remove or add padding.
 

·
Registered
Joined
·
6,696 Posts

·
Super Moderator
Joined
·
3,307 Posts
Just a note, I'm looking into modding my seats as well and I also don't have an air stapler or access to one. But I've found electric ones at Canadian Tire (for us Canucks) for $25 or $30 bucks. I'm sure they can be had even cheaper stateside. They're obviously not top of the line, but I don't mind spending that much for a tool that I'll probably only use a couple of times. But if screws work, hey, that's even cheaper. Just thought I'd mention it.
 

·
Registered
Joined
·
12 Posts
Discussion Starter #10
Sorry guys, but I didn't take any pictures...seat mod went good, although I think I took too much off haha. Oh well, will have to do for now until I buy a new seat. I left 2 inches of foam all around, and added high quality carpet underlay to the top before putting the cover back on. Because of such a large amount of foam taken off, the cover didn't quite stretch to fit, but I put it all back togther anyway with #6x3/8 screws and washers. LOTS of them, every inch and a half or so...provides a lot more back support, but hindsight is 20/20 and should have left a little more foam, maybe another half inch or so. Will buy new seat in the future.
Note to others thinking of the mid...buy a cheap motorcycle seat to practice on! Overall, the seat is more comfortable than before shaving it down due to the added back support, and the dual density because of adding the underlay, just a little too low.
 
1 - 10 of 10 Posts
Top