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General Category >> Rubber Side Down! >> seat raise and carb spring clipping mod questions
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Message started by Josh C on 11/09/11 at 10:25:26

Title: seat raise and carb spring clipping mod questions
Post by Josh C on 11/09/11 at 10:25:26

I was perusing the tech docs section and decided to do a couple mods since I've got some free time.

First is the seat raise mod, where you add spacers and longer bolts where they bolt at the bottom of the gas tank. My question about this is if I add like a 3/4 or 1 inch to the height in the front, do I have to add some support for the sides of the seat at the bike frame. right now there's some rubber contact points on the sides of the seat. If i raise the front an inch they won't touch without the seat doing some bending. The person who originally posted the mod over there didn't mention sides supports but some responders did. Is it ok or maybe even preferred by some for the seat to bend or is it gonna break?

And number two is clipping spring #35 that's used to control the air cut valve diaphram so it's not so stiff to allow more free movement. supposed to cut the backfire on decel and afterfire pretty well. I just wanted to make sure before I get to clipping which spring we're talking about here. When I looked at a carb diagram it was saying #35 was the screw at the idle adjustment screw. I was under the impression that they were talking about the screw inside of the casing shown in the image I've attached. Tell me if I'm wrong before I cut something wrong.

Thanks guys.
p/s how do I just put an image in the post rather than attach one?

Title: Re: seat raise and carb spring clipping mod questi
Post by babyhog on 11/09/11 at 10:36:43

Can't answer your tech questions as I haven't done those mods, but here's the answer to your picture question:

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1240899665

(its in the Tech section too - at the top)

Title: Re: seat raise and carb spring clipping mod questi
Post by Serowbot on 11/09/11 at 10:45:12

An inch, I don't think will bend too much... I spacered mine more like two inches, and added a little support at the seat curve... 2" is great, but the higher you go, the more the back seat bolts get out of alignment...
So, that got a little modding. too...

Haven't done the decel spring mod,.. but if you're cutting a screw,... you're doing it wrong... ;D...

It's the spring behind number 15... (TIP,... don't cut much,.. and put the cut side to the outside, against the plate, not the diaphragm..)
http://i600.photobucket.com/albums/tt82/serowbot/rerun/Mikuni_101web.jpg

Title: Re: seat raise and carb spring clipping mod questi
Post by Josh C on 11/09/11 at 10:56:06

alright i give up on trying to get that picture up here. It's saying it's like 21,000 kb for some reason. If you look at the right side of the carb it's the little casing held on by 3 screws. I meant cutting a spring. Is it the spring inside that little deal?

josh

Title: Re: seat raise and carb spring clipping mod questi
Post by Josh C on 11/09/11 at 10:58:49

ok yeah that's the spring i was thinking. Also, I'm a carb noob, but i can just take this off without doing anything else right? I'd think so since it's just the AIR cut off valve, but I don't want fuel to like spray out and then everything burst into flames or anything.

Title: Re: seat raise and carb spring clipping mod questi
Post by Serowbot on 11/09/11 at 11:01:14

No problem,... fuel sits below the float... Yer' safe...

Don't strip screws,.. and don't cut too much... You can always cut more, but you can't put more back...
;)...

Title: Re: seat raise and carb spring clipping mod questi
Post by verslagen1 on 11/09/11 at 11:22:46

6A6163616D7062000 wrote:

Before running off and doing a mod to the carb, make sure it's clean. A lot of things can be fixed with just a thorough cleaning.

Second, the flip side to that mod is adding a washer. I would do that 1st before cutting to make sure that's the direction to go and it's easier to reverse if it's not the right mod.

Title: Re: seat raise and carb spring clipping mod questi
Post by Josh C on 11/09/11 at 11:50:53

where exactly am I adding a washer? Are you talking about the white washer mod or is this something different. Also, the clipping the spring mod is that clipping 10mm of metal like half or less of a single spiral or clipping 10mm of height if the spring was standing up, like maybe a couple spirals? I won't clip anything yet, i'll wait and get some feedback here, but again, what's this washer thing?

Josh

Title: Re: seat raise and carb spring clipping mod questi
Post by verslagen1 on 11/09/11 at 12:05:35

read backfire fix 2

Title: Re: seat raise and carb spring clipping mod questi
Post by Josh C on 11/09/11 at 12:26:50

i think i found what you're talking about. "backfiring TEV fix2"

I'm not 100% where they're talking about adding a washer, but it's on the spring side of the diaphram, essentially lengthening the spring by the washer thickness. opposite of the spring cutting method. How do I know which I need to do? The bike doesn't die on decel or anything, doesn't even feel that rough, just backfires. Is the washer method for people having trouble with the bike dying and spring method for people with backfiring?

Title: Re: seat raise and carb spring clipping mod questi
Post by Bubba on 11/09/11 at 12:29:33

I long time ago I got a spring from someone on here (t had less tension built into it, came from an outboard I think) anyway, I replace the air enrichment spring (the one you're talking about) and at least in my case it ran like garbage. Sure there was no backfire but it smoked like a diesel and had no power left.
I put back the original which of course had not been cut. I was glad I hadn't cut it...just sayin'

Title: Re: seat raise and carb spring clipping mod questi
Post by verslagen1 on 11/09/11 at 13:53:07

6D6664666A7765070 wrote:

While I feel that you got it right... doing the mod that's reversable before doing the one that's not seems like the safest way to go.

Title: Re: seat raise and carb spring clipping mod questi
Post by arteacher on 11/09/11 at 13:56:59

Putting the washer in worked better for me.

Title: Re: seat raise and carb spring clipping mod questi
Post by Josh C on 11/09/11 at 14:37:38

Well I stuck a washer in there. How thick a washer are people starting with? I'll give it a good long ride tomorrow and see how it is. If that doesn't do the trick I guess I'll start snipping the spring

Title: Re: seat raise and carb spring clipping mod questi
Post by arteacher on 11/09/11 at 16:24:26

I just put in a standard 5/16 washer. I have no idea how thick it is.

Title: Re: seat raise and carb spring clipping mod questi
Post by John_D FSO on 11/10/11 at 05:17:17

As to the seat, 1" is no problem, especially if you let the seat set in the sun on a warm day, or this time of year, let it set inside to warm up. I raised mine that much initially, and was still able to bolt the side bolts up. Gave it some extra curve, but was fairly comfy. I ended up going a little more, but never had pics of that, and no longer have the bike, so can't take more. Here's the 1" though:

http://i626.photobucket.com/albums/tt347/redneck72102/Bike%20Pics/Bike%20Mods/IM000238.jpg

http://i626.photobucket.com/albums/tt347/redneck72102/Bike%20Pics/Bike%20Mods/IM000236.jpg

Here you can see it picks the front up nicely. This pic was for a "work in progress" for the muffler swap:

http://i626.photobucket.com/albums/tt347/redneck72102/Bike%20Pics/Bike%20Mods/IM000262.jpg

Title: Re: seat raise and carb spring clipping mod questi
Post by Josh C on 11/12/11 at 10:22:48

well, did both of these. Raised the seat about an inch using some rubber stoppers (#4) from lowes with some cup washers on either side of 'em that i pulled off some longboard bushings i had. Seat is more comfortable but not like night and day. Think it could stand to go a little higher.

Put in a washer rather than clipping. GOOD ADVICE! Thanks for stopping me from cutting since I clearly needed to go the other direction. Bike's running perfect. No backfires on decel once it's warm, no putter every time i let off the gas. And, it still afterfires when I shut it off, which I liked and which had actually gone away when I turned out the fuel/air screw a tad. Glad it's back, I got the best of both worlds.

Josh