Author Topic: 1st gear engage lurch  (Read 3872 times)

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Offline jgstudios

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1st gear engage lurch
« on: December 05, 2008, 05:48:00 pm »
Hi everyone.  I know I've seen this before on previous posts, but I can't find it, so...I see this most prominently when the bike is cold.  That is, when I first start out in the morning.  I let the bike warm up a bit in Neutral, then when I'm ready and I shift from Neutral into 1st with clutch FULLY engaged, there is a rather strong lurch forward.  on one occasion it was enough to kill the engine, but mostly it's just something I have to do as gingerly as possible.  Once I've ridden the bike a bit, it becomes less noticeable when I restart and begin riding during the course of the day.  What is the solution to this one please?  

Offline Brett0769

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1st gear engage lurch
« Reply #1 on: December 05, 2008, 06:03:00 pm »
What kind of oil are you using?  
'06 C10  Brett Hatfield  AMA# 1019197  COG# 8229 (CDA# 0267)    <a href="http://www.flickr.com/photos/brett0769/2793453582/" title="Trip Home by Brett0769, on Flickr"><img src="http://farm4.static.flickr.com/3223/2793453582_bba89ca959_t.jpg" width="100" height="75" alt="Trip Home" />[/url]

Online smithr1

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1st gear engage lurch
« Reply #2 on: December 05, 2008, 06:25:00 pm »
Old oil or letting the bike sit till clutch plates get real dry can both make this worse.  I work the clutch a few times before I engage and hold brake when dropping it in and has not been that bad.  There may be other ways to make it better but every Conk I have seen lurches more then I feel it should every time you drop it in.  ----------------------------------  I will answer any question.  It is up to you to figure out if I should have.    <p align="left">My Photos<br
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Offline jgstudios

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1st gear engage lurch
« Reply #3 on: December 05, 2008, 07:07:00 pm »
Don't know.  I've had this bike a little over a month.  PO may have garaged it for several months, or year or more before selling it to me.      Should I replace or just top off?  What kind of oil do I use, and how much?  

Offline S Smith

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1st gear engage lurch
« Reply #4 on: December 05, 2008, 07:42:00 pm »
This is a normal condition with this bike. If you squeeze the brake prior to shifting to first you should avoid any surprising lurches.     --  Steve Smith, COG #3184  COG Northeast Area Director, AMA, MSF RC  (somewhere in south central CT)     If you're not living on the edge, you're taking up too much space.
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Offline oldsawfiler

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1st gear engage lurch
« Reply #5 on: December 05, 2008, 08:27:00 pm »
if you havn't changed the oil yet,  any good oil designed for mcs will do just get 10-40  that should help      1990 Aint she a pretty Tomato (the bike ofcourse)  wedshots albums   http://community.webshots.com/user/sawfiler64/albums/most-recent
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Offline Steve in Sunny Fla

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1st gear engage lurch
« Reply #6 on: December 05, 2008, 09:40:00 pm »
 WHAT? you bought a bike and WITHOUT knowing it's the particulars of the last service  you started riding it? And then ask if you should just top it - without knowing how long it's been in there? Are you mad? good GOD man, Service your bike! steve   Shleper of the 7th gear unit and performance exhaust cam sprockets.       My bike - "SHOODABEN" - 1109cc's of what an 04 concours "shoodaben"!
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Online smithr1

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1st gear engage lurch
« Reply #7 on: December 05, 2008, 10:01:00 pm »
Now now  play nice.  Yes you need to know that your bike is ready to roll.  Even if the last owner said he did something do you trust him?  I would either take it for a full tune up and a wallet emptying or go to the Maintenance Links section and start reading.  If not a member then can't get there.  As for what oil.  There is a link in there also with all you wanted to know about oil.  Everyone has a opinion.  I use Rotella full synthetic.   ----------------------------------  I will answer any question.  It is up to you to figure out if I should have.    <p align="left">My Photos<br
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Offline Rev Ryder

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1st gear engage lurch
« Reply #8 on: December 05, 2008, 10:02:00 pm »
YIKES!!! STEVIE'S FREAKIN' AGAIN.  Quick get him a can o' Blendzall or Klotz or Guiness or sumpin!  ;)      
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Offline Steve in Sunny Fla

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1st gear engage lurch
« Reply #9 on: December 05, 2008, 10:08:00 pm »
 Hah! y'all kill me! Seriously though, I tend to believe in knowing your bike. there's enough things that can go wrong when motortcycling - an owner induced accident or stranding should be avoided at all cost.     If y'all wanna hear about an owner induced stranding / almost killing - someday I'll tell you about riding out a locked bevel drive on a suzi gs1000 @ 70 mph. THAT was a close one! stuff like that only needs to happen once to teach you about maintenance issues...Steve   Shleper of the 7th gear unit and performance exhaust cam sprockets.       My bike - "SHOODABEN" - 1109cc's of what an 04 concours "shoodaben"!
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Offline Gil F.

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1st gear engage lurch
« Reply #10 on: December 05, 2008, 10:58:00 pm »
Mine has always lurched when I put into first gear. I have tried diffrent oil and during the course of regular PM I have changed the fluid and blead the clutch system with no change. Now I just hold the front brake when I put into gear. Be careful if you are parked on a slippery surface; I had the rear end kick over and almost dump me once when I was on wet grass.  
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Offline James_Leach_TN

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1st gear engage lurch
« Reply #11 on: December 12, 2008, 01:25:00 am »
The trick to reduce the lurch when engaging first gear is to pull in the clutch lever and then blip the throttle.  This will seperate the clutch discs which have become stuck together when the oil drains out of the clutch when the engine is off.  Let the engine come back to idle and then engage first gear.  I usually blip the throttle a couple of times, mostly cause I like to listen to the engine respond and make sure it's ready to go.  
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Offline 2linby

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1st gear engage lurch
« Reply #12 on: December 12, 2008, 01:57:00 am »
And here I thought this was going to turn into an oil war not a P/M maintenance one! HA!    Though seriously you should have done a pre-check before taking posession.  I bought an old Honda CB900C from a guy and my "test ride" was made really "interesting" when the throttle cable froze and  held the engine at about 8 grand in second gear.  Luckily I was only a couple hundred yards away from his place so I just pulled in the clutch, hit the engine cut off switch and coasted back. He was visibly upset and very apologetic.  I got the bike really cheap too as he thought there was something very seriously wrong with it!  My lesson was learned.  AKA "2linby" That's 2-lin-by folks!  Northwest Area Director  COG #5539  AMA #927779  IBA #15034  TEAM OREGON MC Instructor    http://community.webshots.com/user/2linby  http://tinyurl.com/njas8 (IBA BunBurner Gold Trip)  http://tinyurl.com/lwelx (Alaska trip)
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Offline Stealth Connie

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1st gear engage lurch
« Reply #13 on: December 29, 2008, 08:15:00 pm »
Are you taking it off choke first. Shifting into 1st around 1k RPM's seems to do the trick for me. If I have the choke on (1.5-2K RPM), mine will grab hard!  
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Offline rneal55555_NH

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1st gear engage lurch
« Reply #14 on: December 30, 2008, 01:19:00 am »
While your changing the oil it sure couldn't hurt to change the brake and clutch fluid and then bleed them all.    A tiny amount of air in the clutch hyd system can also ,make the lurch worse than normal  Russ Neal  North Stonington, Ct  Originally from Willsboro, NY  04 Connie  99 Yamaha Venture  IBA # 32003  Venturers.org # 1774
Russ Neal  Milton, NH  Originally from Willsboro, NY  04 Connie  99 Yamaha Venture  IBA # 32003  Venturers.org # 1774

Offline duffy

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1st gear engage lurch
« Reply #15 on: January 03, 2009, 11:11:00 am »
Well, what "I" do:  Prior to starting the engine is to shift into 3rd or 4th gear, and holding the clutch in, just rock the bike back and forth a few times to unstick the clutch plates.  Then, just shift back to neutral, and start as usual.   I DO normally hold the front brake firmly while shifting into 1st for the first time of the day anyway.  "MY" lurch can be pretty rough if I don't follow this procedure.  
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Offline mleo

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1st gear engage lurch
« Reply #16 on: January 04, 2009, 12:46:00 am »
   I put this post in the wrong place ealier today so here goes again.    Anyway I have a 2006 Connie and after I did the first oil change my bike would lurch when I put it into first upon start up when cold. When I looked in my clymer manual the trouble shooting section said that if you over fill with oil it will lurch. So I drained the oil and instead of putting in the ammount the manual said to put in I used the sight glass and filled it to the upper mark. I have to tell you I was a little nervious because it was almost a qt less than recommended. But when I started it up it sounded good and rode fine. The lurch is gone thats around 12,000 miles ago.   Mark   Bellingham,WA    

Offline Jaxrider

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1st gear engage lurch
« Reply #17 on: January 04, 2009, 07:35:00 pm »
Synthetic oil helps to reduce this - I used Rotella syn and it helped this a lot.   David in Jax, FL   COG# 7898 CDA #   2002 ZZR-1200 "Magic Carpet"  2004 Suzuki Intruder 1500 LC "Luxury Couch"
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Offline Yuma

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1st gear engage lurch
« Reply #18 on: January 04, 2009, 11:47:00 pm »
The only fix for this I have found is to bump the bike a little and move the wheel. Work the clutch some also. I get the lurch also and I have ran synthetic oil since 1200 miles (over 38k now)  This seem to be the nature of this beast.   :confuse:    As for filling the oil up to the top of the sight glass is OK if you have checked it after it HAS WARMED up and then sat for a few minutes.....  Summer in Yuma is not hell, but hell is a local call :-)  2006 Connie http://community.webshots.com/user/Lateck?vhost=community
Summer in Yuma is not hell, but hell is a local call :-)  2006 Connie, RIP 03/17/09 http://community.webshots.com/user/Lateck?vhost=community