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Message started by zx6chris on 03/01/11 at 08:52:19

Title: Running problem
Post by zx6chris on 03/01/11 at 08:52:19

Hi all hope you can help me my 87 savage is not running right she has not been run for over 7 years so iv put a new battery new plug  fresh fuel cleaned the carb out cos the small jet was blocked  she will fire up but will not rev all she dose is cut out I also have 3 small black pipes on the carb that don't go any where  any help would be great cheers Chris

Title: Re: Running problem
Post by Serowbot on 03/01/11 at 09:07:07

Two are carb vents,.... they connect to nothing, but loop up above the carb into the frame tube, under the tank.
The one on the throttle side goes to the back of the petcock,... it directs vacuum to open the fuel flow in on and reserve position..

vents...
http://i600.photobucket.com/albums/tt82/serowbot/vents001.jpg?t=1298998830

vacuum...
http://i600.photobucket.com/albums/tt82/serowbot/vents003.jpg?t=1298998830

Test your petcock... it's probably bad from sitting so long...
Here's how...
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429/1

Title: Re: Running problem
Post by zx6chris on 03/01/11 at 13:18:51


505B545E5B49553A0 wrote:
I can't even put more throttle. It
Stalls out or acts likes is going to stall like if the carbs were getting flooded. Correct me if I'm wrong is hard to find the words to explain my situation since English is my second language.



this is the same as mine the bike ran fine 7 years a go and was just left in my dads garage and now it wont rev up nothing has been ajusted just the bottom taken off to clean out the old petrol

Title: Re: Running problem
Post by verslagen1 on 03/01/11 at 13:27:21


3436782D263C273D4E0 wrote:
[quote author=505B545E5B49553A0 link=1298998340/0#5 date=1299005627]I can't even put more throttle. It
Stalls out or acts likes is going to stall like if the carbs were getting flooded. Correct me if I'm wrong is hard to find the words to explain my situation since English is my second language.


this is the same as mine the bike ran fine 7 years a go and was just left in my dads garage and now it wont rev up nothing has been ajusted just the bottom taken off to clean out the old petrol [/quote]

Fixing yours is simple, clean the carb.

You might try seafoam, drain the gas out, and fill with seafoam.  Leave at least overnite, drain and pour into the gas tank.  petcock to prime and start her up.

Title: Re: Running problem
Post by Max_Morley on 03/01/11 at 13:30:10

Sounds to me like the diaphram that actually admits the air and fuel when the throttle plates are opened is not opening. Stuck plunger or bad diaphram. Remember on a CV (constant velocity) carb the throttle plates a simply a request for engine acceleration, acceleration is controlled by the vacuum signal operating on the plunger that is sealed by the diaphram. Raising the plunger admits more air and fuel to speed up the engine. When you crack the throttle plates only some air is admitted leaning the engine to the die point. Max

Title: Re: Running problem
Post by zx6chris on 03/01/11 at 13:33:10


6C40597E6C4E534D4458210 wrote:
Sounds to me like the diaphram that actually admits the air and fuel when the throttle plates are opened is not opening. Stuck plunger or bad diaphram. Remember on a CV (constant velocity) carb the throttle plates a simply a request for engine acceleration, acceleration is controlled by the vacuum signal operating on the plunger that is sealed by the diaphram. Raising the plunger admits more air and fuel to speed up the engine. When you crack the throttle plates only some air is admitted leaning the engine to the die point. Max



you say that the punger only move a few mm i thought it was ment to do that

Title: Re: Running problem
Post by bill67 on 03/01/11 at 15:06:45


213225243B3630323966570 wrote:
[quote author=3436782D263C273D4E0 link=1298998340/0#11 date=1299014331][quote author=505B545E5B49553A0 link=1298998340/0#5 date=1299005627]I can't even put more throttle. It
Stalls out or acts likes is going to stall like if the carbs were getting flooded. Correct me if I'm wrong is hard to find the words to explain my situation since English is my second language.


this is the same as mine the bike ran fine 7 years a go and was just left in my dads garage and now it wont rev up nothing has been ajusted just the bottom taken off to clean out the old petrol [/quote]

Fixing yours is simple, clean the carb.

You might try seafoam, drain the gas out, and fill with seafoam.  Leave at least overnite, drain and pour into the gas tank.  petcock to prime and start her up.
[/quote]
You don't want to drain all the sea foam out,Try to start the motor to get the sea foam up in the carb. Just setting in the bowl isn't going to do to much.

Title: Re: Running problem
Post by zx6chris on 03/01/11 at 15:22:33

How far up should the black plunger go

Title: Re: Running problem
Post by verslagen1 on 03/01/11 at 15:27:35


292B65303B213A20530 wrote:
How far up should the black plunger go

You mean the slide?  It's vacuum controlled, but I would think it should go up enough to give full bore open.

Title: Re: Running problem
Post by zx6chris on 03/01/11 at 23:46:18

Yeah that's what I thought mine don't move that much

Title: Re: Running problem
Post by verslagen1 on 03/02/11 at 07:03:53


4F4D03565D475C46350 wrote:
Yeah that's what I thought mine don't move that much

Some of the euro states put a sleeve in there somewhere to limit HP.
Maybe you got one.

Title: Re: Running problem
Post by zx6chris on 03/02/11 at 08:37:50

Well I got the plunger to move it was a bit stuck and the needle was covered in crud but with that all cleaned off she still won't rev up it's like there is to much air Being drawn in

Title: Re: Running problem
Post by verslagen1 on 03/02/11 at 08:51:57

That slide has to be clean, even fingerprints will hang it up.
And occassionally, that spring gets cockeyed.
Take the top off and check the rubber too.

Title: Re: Running problem
Post by jandaso on 03/02/11 at 10:42:10


2E3D2A2B34393F3D3669580 wrote:
[quote author=292B65303B213A20530 link=1298998340/15#16 date=1299021753]How far up should the black plunger go

You mean the slide?  It's vacuum controlled, but I would think it should go up enough to give full bore open.[/quote]

Thanks! I'm just hoping lancer can get better soon so I can strat ordering some goodies. 8-)

Title: Re: Running problem
Post by Max_Morley on 03/02/11 at 15:06:10

No the plunger with the needle on it moves closer to 30mm from idle to wfo at max RPM. Max

Title: Re: Running problem
Post by zx6chris on 03/03/11 at 09:19:45

she still not reving up iv checked every thing and still cuts out you cant even move the throtel with out her cutting out its really do ing my head in now

Title: Re: Running problem
Post by Serowbot on 03/03/11 at 09:59:06

This is confusing,.. dealing with two peoples problems in one post...

Being that this is zx6's thread, let me get this straight...

Dies when you give it throttle?...
You cleaned the jets,... did you remove them to clean?...
You are using Mikuni jets?...
Did you connect the vacuum line from the right-side carb to the rear of the petcock?...
Did you test the petcock?...

If so,.. you need to take the carb completely apart again and clean all the passages, make sure the slide is spotless and moves freely, make sure the jets are clean, and the brass washer is under the main jet...



Title: Re: Running problem
Post by zx6chris on 03/03/11 at 12:03:23


6C7A6D70687D706B1F0 wrote:
This is confusing,.. dealing with two peoples problems in one post...

Being that this is zx6's thread, let me get this straight...

Dies when you give it throttle?...
You cleaned the jets,... did you remove them to clean?...
You are using Mikuni jets?...
Did you connect the vacuum line from the right-side carb to the rear of the petcock?...
Did you test the petcock?...

If so,.. you need to take the carb completely apart again and clean all the passages, make sure the slide is spotless and moves freely, make sure the jets are clean, and the brass washer is under the main jet...



yes both jets were taken out and cleaned and replaced with the small brass washer the small jet was blocked

it was a mikuni carb and for as long as i can remenber it has not been conected to the pet thingy and i had it running fine as is righrt now
nothing has been touched on the bike for over 7 years and she ran fine before

Title: Re: Running problem
Post by Serowbot on 03/03/11 at 14:56:12


3F3D73262D372C36450 wrote:
for as long as i can remenber it has not been conected to the pet thingy and i had it running fine as is righrt now
nothing has been touched on the bike for over 7 years and she ran fine before

If the vacuum line is not connected to the petcock... the vacuum port on the carb must be capped off... if that port is open to air, you will have a huge air leak into the intake manifold...
Connect it,... or cap it... very important!...

You must be running on the prime setting all the time now,... correct?...
This will allow constant flow from the petcock to the carb...
Without the vacuum line connected, the run/on position and reserve will not flow fuel, unless the petcock is broken...

Title: Re: Running problem
Post by zx6chris on 03/04/11 at 10:44:25

That's cool I'll give That a go tomorrow see how she runs cheers every one for all the help and advice

Title: Re: Running problem
Post by zx6chris on 03/05/11 at 14:32:33


2F392E332B3E33285C0 wrote:
[quote author=3F3D73262D372C36450 link=1298998340/15#17 date=1299182603] for as long as i can remenber it has not been conected to the pet thingy and i had it running fine as is righrt now
nothing has been touched on the bike for over 7 years and she ran fine before

If the vacuum line is not connected to the petcock... the vacuum port on the carb must be capped off... if that port is open to air, you will have a huge air leak into the intake manifold...
Connect it,... or cap it... very important!...

You must be running on the prime setting all the time now,... correct?...
This will allow constant flow from the petcock to the carb...
Without the vacuum line connected, the run/on position and reserve will not flow fuel, unless the petcock is broken...
[/quote]


iv tried all that and still not reving up thinking of just getting a new carb and a new petcock

Title: Re: Running problem
Post by Serowbot on 03/05/11 at 16:13:54

... a step at a time will save you money... A Raptor petcock is only about $25.00,.. a new carb is hundreds...

If you try, step by step, the petcock test in the tech section, it will tell you if that can be the problem.  Do each step of the test,.. no shortcuts here...
A bad one can make you flood/rich or starve for fuel, depending on what gives out.
Once you know, you can decide to buy a new one or not, and then it may be fixed, or you will have ruled the petcock out as the problem.
No need to buy a new carb unless something is physically broke, like a thread stripped out or a part of the casting broke off.
It's completely rebuildable and quite simple to do.

On an older bike like this, you don't want to sink too much money in the wrong places.  An 87' is only worth about $1,000 running.  You can easily sink that much in there in new parts and still not have a running bike, if you go about it wrong....
Money spent that doesn't fix the problem could be better spent on neato goodies for your ride... ;)...



I've just been working on an 02' that has been sitting fir three years...
... and found a leaking petcock, (fixed with an o-ring, $1.00), stuck float, (cleaned it), clogged jets, (cleaned), missadjusted decomp lever, (adjusted), stretched camchain,(repaired with a Verslavy mod $60.00)), and dead battery,(replaced $50.00)...
So, what I'm saying is, it may be more than one thing, but there's lots of help here...
Putting out too much money on new parts may frustrate you into giving up.
Unless you are filthy rich?... :-?...
but I doubt that, or you'd pay shop a zillion to do the job.. ;D...

So, I recommend the petcock test first... do every step... Then post the results...
We'll get you fixed up.   :)...

Linky here...
How to check your petcock,.... (http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429/1)

Title: Re: Running problem
Post by verslagen1 on 03/05/11 at 19:10:04

Just as sero said (more or less)... you can throw money at it or you can fix it.

before you do anything else... clean the carb.  There's a very good post in the tech section, do it.

Title: Re: Running problem
Post by zx6chris on 03/08/11 at 11:39:58

I think it need a new carb I took off to day an was taking the top off to get at the diafram and on the last screw it rounded off so I got a bigger screw driver bit and tapped a bit to hard on I'd put a crack in the bottom of where the diafram sits >:( and still never got the screw out so mission failed will try again tomorrow  

Title: Re: Running problem
Post by zx6chris on 03/09/11 at 15:22:14

can some one find me the link on how to service the pet thingy please as i cant find it any where cheers

Title: Re: Running problem
Post by Serowbot on 03/09/11 at 16:11:29

 Test your Petcock,.. don't just turn it to Prime.. (http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429/1)

 Petcock repair kit (http://suzukisavage.com/cgi-bin/YaBB.pl?num=1268804471/1)

 Convert petc0ck to MANUAL operation ON/OFF/RES (http://suzukisavage.com/cgi-bin/YaBB.pl?num=1113631600/1)

Title: Re: Running problem
Post by zx6chris on 03/12/11 at 12:25:44

the revs are slowly picking up but the it stalls again and the no revs at all again

Title: Re: Running problem
Post by zx6chris on 06/09/11 at 14:31:25

update time.......................... SHE IS ALIVE at last its runnig as it should be it turned out to be the main needle had some crap on it and was stopping it lifting and now its all clean and runns like a dream

i just thought id put some pics up of her as she is now
http://i488.photobucket.com/albums/rr247/6veccdx/019-2.jpg
http://i488.photobucket.com/albums/rr247/6veccdx/018-2.jpg
http://i488.photobucket.com/albums/rr247/6veccdx/020-2.jpg
as u can see she not in the best fo shape and it is 23 years old and spent a year on the north sea coast of holland

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