SuzukiSavage.com - 2006 S40 small jerks when keep my throttle steady

Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: 2006 S40 small jerks when keep my throttle ste Reply #30 - 03/23/17 at 18:52:36 eau de sauvage wrote on 03/23/17 at 18:48:29: Ha! fair enough. I'm at sea level. Mind you it was nearly 3 turns out so I went for a bigger pilot anyway. LOL! Every bike is different. What works perfectly for one person may not do anything for someone else.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: 2006 S40 small jerks when keep my throttle ste Reply #31 - 03/23/17 at 19:21:53 Start out by closing the screw. Count the turns in. Seat it gently, You'll need to drop the idle speed to be able to catch the engine respond to the adjustment. Ride and warm it up. I did the adjustment at stop lights.
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Ruttly

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Re: 2006 S40 small jerks when keep my throttle ste
Reply #32 - 03/23/17 at 20:37:42

Check all the vacuum hose at carb , tank , charcoal canister for being loose or cracking. Also check rubber intake manifold between head & carb. Start engine spray some carb cleaner around it and along the hoses , you will hear the change in idle when you find a leak , do it outdoors and try not to spray it on painted areas , just on hoses & manifold

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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: 2006 S40 small jerks when keep my throttle ste Reply #33 - 03/24/17 at 10:41:17 It seems a shame that Afan has been a member for nearly 4 years and hasn't even attemped to adjust the air screw,or mod the carb for his elevation, and just wants it running good so he can sell it !
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Afan

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Re: 2006 S40 small jerks when keep my throttle ste
Reply #34 - 03/24/17 at 11:26:36

batman wrote on 03/24/17 at 10:41:17:

It seems a shame that Afan has been a member for nearly 4 years and hasn't even attemped to adjust the air screw,or mod the carb for his elevation, and just wants it running good so he can sell it !

It's true.
In my defense, if I may, this is my first bike, no bike-knowledge before. I learned a lot. But less than year after I bought it I got a 60 mile commuting job and I bought a bigger bike so I can take an Interstate to get to my office. Also, after three 200+ miles trips with S40 around Iowa I found that my tail bone is not in good relationship with the seat. But it was fixable I think. I bought tank bag and sissy bar bags... I was getting ready for longer trips. But, as I said, I bought other bike...
I'm sorry if I hurt anybody's feelings... Embarrassed

And I'm very thankful for all your help, I really appreciate it.

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Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: 2006 S40 small jerks when keep my throttle ste Reply #35 - 03/24/17 at 17:33:38 Once you sell the Savage, stick around. You'll want it back!
Back to top	There's no problem that a full tank of gas and a sunny day can't fix! 2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor IP Logged

Afan Full Member Offline SuzukiSavage.com Rocks! Posts: 156 Des Moines, IA Gender:	Re: 2006 S40 small jerks when keep my throttle ste Reply #36 - 03/24/17 at 17:59:16 Kris01 wrote on 03/24/17 at 17:33:38: Once you sell the Savage, stick around. You'll want it back!
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eau de sauvage Serious Thumper Offline Posts: 2565 Queensland Gender:	Re: 2006 S40 small jerks when keep my throttle ste Reply #37 - 03/24/17 at 19:54:07 Kris01 wrote on 03/23/17 at 18:52:36: Every bike is different... Mine isn't. ;¬) https://youtu.be/KHbzSif78qQ?t=32s
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Afan

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Re: 2006 S40 small jerks when keep my throttle ste
Reply #38 - 03/25/17 at 15:51:51

eau de sauvage wrote on 03/23/17 at 18:38:47:

Yep that is the screw you need to adjust. FFIW, I recently rejetted a larger pilot for a new muffler, BUT before I did that simply adjusting that air/fuel mix completely eliminated the surging problems. While the S40 is jetted lean, you do not need to rejet to eliminate the surging, just setting the air/fuel screw correctly will fix your current problem.

If I may, again...

It looks like it doesn't work well. My air/fuel screw was on 2 1/4 turns. I turned up to 4 turns (from the full closed position) and the difference was really tiny (maybe it was my brain?!?!). I was turning in 1/4 turns and was waiting for 15-20 sec to see/hear any difference.
I turned back one turn so it's now 3 or 3 1/4 turns. I did just short test ride around the block because it was rain but didn't feel big difference. It was better, sure. But not sooo better as when I pull the choke. Sad

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Ruttly Serious Thumper Offline Thumpers Rule Posts: 5109 Manteca , CA Gender:	Re: 2006 S40 small jerks when keep my throttle ste Reply #39 - 03/25/17 at 19:54:21 IN most cases , going beyond 3 turns out does nothing. All the adjustment is in the first 3 turns. However when you adjusting it make sure engine is at full operating temperature and choke is off. Did you check for vacuum leaks ?
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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: 2006 S40 small jerks when keep my throttle ste Reply #40 - 03/26/17 at 13:27:45 I believe his surging is do to the needing the white spacer mod and maybe a larger idle jet being his elevation is a bit less than 800ft.
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Afan

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Re: 2006 S40 small jerks when keep my throttle ste
Reply #41 - 03/26/17 at 15:41:21

Ruttly wrote on 03/23/17 at 20:37:42:

... Start engine spray some carb cleaner around it and along the hoses , you will hear the change in idle when you find a leak , do it outdoors and try not to spray it on painted areas , just on hoses & manifold

Done. This is what I found. Only one spot when sprayed caused the change in idle.
https://youtu.be/-CCUxjjDQho

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batman

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Re: 2006 S40 small jerks when keep my throttle ste
Reply #42 - 03/26/17 at 18:02:39

Afan that appears to be the outboard end of the throttle shaft ,I' d remove that c clip and see if there isn't a seal under it ,like an O ring,that you can replace as the air is being suck in and leaning out the fuel mix.I admit I've never had mine out so I don't know what you'll find.oops! just looked in the clymers book, clip ,washer,seal.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: 2006 S40 small jerks when keep my throttle ste Reply #43 - 03/26/17 at 18:55:46 Let it sniff a few drops of transmission fluid. If that doesn't help, either fix it right or try a seal leak stopper.
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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: 2006 S40 small jerks when keep my throttle ste Reply #44 - 03/26/17 at 23:42:08 If the seal is bad try an O ring,maybe a little vasoline for lube.
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