|
SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> S40 stalling while shifting down /cgi-bin/YaBB.pl?num=1404323379 Message started by MH on 07/02/14 at 10:49:39 |
|
Title: S40 stalling while shifting down Post by MH on 07/02/14 at 10:49:39 Hello guys - I am new to the forum and also recently got my first bike S40 (2011, 5K miles). I am having a problem while downshifting from 3 to 2. Bike stalls while the clutch is still engaged. I am not sure why - is it my driving style? I have ordered a new AIR FILTER that I am putting today. Previous one looks like was never changed or cleaned. I have a feeling the idle speed is too low. Bike dont stall at idle after initial warm-up but I feel the revs at idle are low. Is this causing the stall as well when I am downshifting? Thanks. |
|
Title: Re: S40 stalling while shifting down Post by Serowbot on 07/02/14 at 11:09:34 797C677A6B666F7D6B6B6C0E0 wrote:
Yes,.. and raise it up, right away... Too low an idle speed will destroy cam bearings... oil pump needs 1,000rpm to make adequate oil pressure... |
|
Title: Re: S40 stalling while shifting down Post by YoungSavage on 07/02/14 at 11:10:43 Raise that idle! Remember around 1,000 to 1,100 rpm. Could also help to clean the carb and the tev. When I did all three of these the bike ran great. |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/02/14 at 11:54:10 Thanks guys for a quick response. I dont want to sound dumb but how do you figure out the RPM. Bike doesn't have a tachometer. If I get a tachometer where to hook-up? One more Q: The manual says before you adjust the idle speed, start the bike (if cold) at 2000 RPM for 10 mins. I dont have much exp with bikes but should I be ever concerned with the overheating of an air-cooled engine if kept running and not driving? want to get some word on this as well from experts. |
|
Title: Re: S40 stalling while shifting down Post by oldNslow on 07/02/14 at 12:08:56 Quote:
If the bike will run down a level street at 8 -10 mph in first gear with the throttle completely closed and the clutch lever released the idle speed is pretty close to where it needs to be. A little too high is better than too low. |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/02/14 at 20:24:55 0E30313D2F33325C0 wrote:
New Air Filter in and I tried your tip, first gear, throttle fully closed and bike starts a bit as i release the clutch but if i release it fully i can feel it will stall. |
|
Title: Re: S40 stalling while shifting down Post by verslagen1 on 07/02/14 at 20:35:50 6663786574797062747473110 wrote:
New Air Filter in and I tried your tip, first gear, throttle fully closed and bike starts a bit as i release the clutch but if i release it fully i can feel it will stall. [/quote] you should get it going then let it idle down. |
|
Title: Re: S40 stalling while shifting down Post by Bluesman on 07/03/14 at 02:29:07 Check at 1:12 in this video. That idle speed is reasonable, in my book. http://www.youtube.com/watch?v=Qw-bg3gHEHU |
|
Title: Re: S40 stalling while shifting down Post by jcstokes on 07/03/14 at 03:16:52 Cheap analogue tachs are aviadable from people like JP Cycles and Catalyst Cycles in the States, these people have websites you can google them. Regardless of the colour of you bike, get a white face black dial one. |
|
Title: Re: S40 stalling while shifting down Post by oldNslow on 07/03/14 at 05:10:29 Quote:
Get the bike rolling first, just like you were going for a ride. Then close the throttle. If you just release the clutch while stopped with the engine idling it is going to stall. |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/03/14 at 08:30:39 http://www.youtube.com/watch?v=Qw-bg3gHEHU Looking at the video I think I need to increase idle. I also happen to see a brand new S40 being sold to a customer yesterday and noticed the revs where high at idle than mine. Let me try this first. One more thing guys and I am not sure if this is interconnected... The bike fires up all fine in just few second from cold with/without choke. But once it warms up and this stall issue happens to me (as described during downshift) starting it again takes a bit longer cranking up. Is there any issue with the spark plug? I ca check the battery voltage as well. But let me know. Bike has 5K miles only and is 2011 model. |
|
Title: Re: S40 stalling while shifting down Post by Serowbot on 07/03/14 at 09:05:11 Raise the idle... NOW!... Figure out the other possible problems once you have a safe idle speed... You are hurting your engine every minute that you run the idle too low... The issue may go away once you have a safe idle,.. or it may not... You need to get the idle up first and foremost... No more checking or wondering,.. jes' do it... ;)... Knurled knob by the choke,.. turn it clockwise... |
|
Title: Re: S40 stalling while shifting down Post by justin_o_guy2 on 07/03/14 at 09:58:26 It's OKAY to be wrong on the high side. LOW is Fatal for the motor. |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/03/14 at 10:06:24 Let me get the idle up today ASAP once I get home in few hours...yeah a bit high side is better. Worry about tachometer s**** later... :-/ |
|
Title: Re: S40 stalling while shifting down Post by BalingWire on 07/03/14 at 10:07:31 Spinal Tap your bike! Turn it up to 11 hundred. Spinal Tap - "These go to eleven...." http://www.youtube.com/watch?v=4xgx4k83zzc [media]http://www.youtube.com/watch?v=4xgx4k83zzc[/media] ;D |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/03/14 at 18:22:03 Guys - OK - raised the idle speed ... The bike definitely sounded a lot better and it initially behaved a lot better at stops with no stalls while I shifted down from 3 to 2 gear and in some cases to 1 while i come to a stop. After couple of laps around the block - the same thing started to happen again. This time while I was coming on either 3 or 2 gear and pressed the clutch while I was downshifting and engine speed as at idle it stalled again. Now what? :'( |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/03/14 at 18:47:01 Checked the battery as well just now and it reads a good 12.66v as well. Should I be concerned with the spark plug now? |
|
Title: Re: S40 stalling while shifting down Post by justin_o_guy2 on 07/03/14 at 20:06:24 If. It's dying,raise the idle till it's obviously too high. Is the gas old? Are ya letting the gas slap shut? How does it act on restarting? |
|
Title: Re: S40 stalling while shifting down Post by kennemarv1 on 07/03/14 at 20:15:06 Had the same problem with my 2011. Got a Raptor, raised idle, adjusted fuel/air, no more problem (got the bike in February and did all this within the first 2 weeks, runs great). |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/03/14 at 21:03:55 2C3335322F2819291921333F74460 wrote:
Idle is UP now, gas is new. I dont believe I am shutting the gas too fast. But as I engage the clutch (2 or 3 gear doesnt matter) and release the throttle, the stall happens, especially like when I do a downshift. |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/03/14 at 22:12:36 I tried once more at 9PM... idle same at the previously adjusted higher RPM. Now when u start the engine barely keep up...it is stalling even while parked. When i give a bit throttle it hesitates but if i leave throttle it dies again. |
|
Title: Re: S40 stalling while shifting down Post by Serowbot on 07/03/14 at 22:35:06 Test yer' petcock... http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429/1 ...very common Savage problem... |
|
Title: Re: S40 stalling while shifting down Post by MH on 07/13/14 at 17:35:35 OK guys back after few days. I have done few things: 1. Raised the idle speed 2. Giving enough time on choke to warm-up (2 mins) 3. After that extra 1-2 mins on idle without choke before i get rolling Today after doing all of the above I started rolling (fuel valve ON position) after 3-4 miles on 3-4 gear. hit a red light and while downshifting bike stalled again. Sucks!!! I started again with a bit more throttle and again after 1 mile on a red light, same thing happened. Parked the bike on the right, moved the valve to RES (tank was 100% full when I started) and cruised again without any problem for 2 hours. Called the guy where I got the bike and he said it may be the clutch cable. Thoughts? I am planning to do the drill again with fuel valve ON and see if it happens again and if it is a non-issue on the RES. Opinions? |
|
Title: Re: S40 stalling while shifting down Post by verslagen1 on 07/13/14 at 19:17:56 4D5B4C51495C514A3E0 wrote:
:-? |
|
Title: Re: S40 stalling while shifting down Post by Steve H on 07/14/14 at 03:24:43 Sounds like a petcock problem. Test your petcock. |
|
Title: Re: S40 stalling while shifting down Post by luckylouie82 on 07/27/14 at 22:28:20 I know Im arriving late to the party, but I was having the same issues as you. Didn't want to beleive a faulty petcock was the issue, but it appears to be. Here is an easy test: If all your other adjustments are spot on. ride the bike on prime...you won't hurt anything, and see if you stall out. What is happening is the vacuum can't keep up with fuel demand when rpms fall, that's why it ran a little better when you raised idle. Try, and if it runs better on prime, then you have your answer. Just remember to flip back to on position after ride or you can flood the carbs. |
|
Title: Re: S40 stalling while shifting down Post by Seaweednh on 07/28/14 at 07:08:21 If you haven't done it yet, change the petcock. And no, it's not the clutch cable? The first day I had my bike out the bike would cut out as I rolled off the throttle. I switched it over to prime and drove it in prime for days without a problem. My petcock corrected itself but I did swap it over to a raptor. Now I enjoy the fact that I not only that it won't repeat a flare up but I can now take the tank of with ease to do general service. |
|
SuzukiSavage.com » Powered by YaBB 2.2! YaBB © 2000-2007. All Rights Reserved. |