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87 savage carb problems "Help"!! (Read 23 times)
ALRICH
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Re: 87 savage carb problems "Help"!!
Reply #15 - 09/10/07 at 06:42:12
 
Alright pulled carb completely apart.  And have found nothing that would make it stick.  enrichment valve diaphram looked alittle questionable.  I have an new one so I will go ahead and replace it.  Needle jet wasnt clogged up at all.  Diaphragm assemble in the top also look questionable.  It does slide up and down when in the carb but is alittle slow to come back down.  I was thinking maybe the spring isnt any good anymore??
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Re: 87 savage carb problems "Help"!!
Reply #16 - 09/10/07 at 08:11:02
 
that diaphram and silde need to be really clean - not even a fingerprint - as well as the slide bore - if your careful you can stretch out the spring a little to give more down force - you say the top of the diaphram looks questionable? as in some holes or cracks?
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ALRICH
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Re: 87 savage carb problems "Help"!!
Reply #17 - 09/10/07 at 08:35:11
 
The diaphram just looks kind of winkled like it is old.  Also the slide has a bunch of black stuff all over it  I will try to clean it off the best I can.  also the slide has some scoring marks all the way around it.
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Re: 87 savage carb problems "Help"!!
Reply #18 - 09/10/07 at 08:47:27
 
There's your problem, get that black stuff off of there.

600 paper works great.
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ALRICH
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Re: 87 savage carb problems "Help"!!
Reply #19 - 09/10/07 at 08:53:50
 
will go get some 600 grit this afternoon thanks for the help I hope it works.   Do you have any idea what that black stuff is??  Maybe old gas??
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Re: 87 savage carb problems "Help"!!
Reply #20 - 09/10/07 at 10:11:17
 
varnish and dirt.

When I 1st saw mine I thought it was dry lube it was so consistent I thought it was supposed to be there.  After I cleaned it I gained 2-3 mpg.  And maybe this is when I also started noticing clutch slip.  So a little snappier responding throttle.   Grin
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ALRICH
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Re: 87 savage carb problems "Help"!!
Reply #21 - 09/10/07 at 12:40:22
 
Well I completly cleaned and dismantled carb put it back togather and it is still not wanting to run.  When I first put the carb back on it it fired right up with the choke and ran like a new bike.  But then it wouldnt stay running.  After trying to start it a couple times with choke again it just would not start.  Anyone think I should start looking at the coil or some other eletrical problem??  There is no way it could be the carb there isnt any dirt in it it is so clean I could eat off it.
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Re: 87 savage carb problems "Help"!!
Reply #22 - 09/10/07 at 12:45:09
 
I'm probably not much help, but did you take a peek at the petcork? Maybe the filter part is all clogged up? What's the spark plug looking like? You probably already checked those things, but in case you didn't I thought that those might be possible reasons.
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ALRICH
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Re: 87 savage carb problems "Help"!!
Reply #23 - 09/10/07 at 13:45:55
 
I bought that pet thingy brand new and the tank had been cleaned out.  It has really got me stumped.
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Re: 87 savage carb problems "Help"!!
Reply #24 - 09/10/07 at 15:35:22
 
I assume that the airfilter is new too?
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Re: 87 savage carb problems "Help"!!
Reply #25 - 09/10/07 at 19:43:57
 
Remember that the carb basically has three fuel circuits.  Low speed, mid and high.  For the low, the pilot jet and air mixture screw (pilot screw, low speed mixture screw ....pick one).  Then for mid-range the needle comes into play.  After that is the main jet.

So, if you can idle with the choke on but not without it, that means you need more fuel at low speed.  I would adjust low speed mix screw in both directions to find out where the "too lean" and "too rich" points are.  If you can't get to the too rich point, then either there is small amount of unseen dirt (Holes are small, doesn't take much) or the mod's done before you got the bike require more fuel (because it's getting more air now) and you need a bigger pilot jet.

Next, sounds like it bogs when you hit the throttle.  Well, that is the hard one to diagnost.  If it is just above idle then it's the needle circuit (diagphram/slide assembly thingy). IF you are bogging down due to too much fuel, the spark plug will be getting black.  If you are bogging down from lack of fuel, spark plug will be clean(er).  Lack of fuel would be a modification of the white spacer.  Too much fuel I think is diagphram (never had to play with this so the forum may need step in here).

If you get the bike rolling but bogs when you hit the throttle to get into traffiic, then would be in main jet circuit.  Puff's of black smoke when rev'ing are an indication of too rich.  Too lean would manifest itself in multiple ways (blue'ing pipes, back firing (w/ no smoke).  Spark plug again is your eyes as to what is going on inside the chamber.  

Hope this helps you look at the correct circuit to concentrate on.

I would first get the bike to idle without the choke.
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Re: 87 savage carb problems "Help"!
Reply #26 - 09/10/07 at 21:52:51
 
Isn`t that black stuff on the slide a teflon coating??????

B
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ALRICH
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Re: 87 savage carb problems "Help"!!
Reply #27 - 09/11/07 at 02:19:11
 
Air filter is also new
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ALRICH
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Re: 87 savage carb problems "Help"!!
Reply #28 - 09/11/07 at 02:30:13
 
I think I found my problem finally.  Las night when I was trying to get it running.  I decided to drain some gas out of the petcock to see if it smelled like bad gas or anything.  Well I found there to be water in it.   So I drained the tank and carb.  Went got some more gas from the same station that I got the las gas from not even thinking about it.

When I filled it up the bike ran without the choke for about 2 minutes then starting bogging down again.  Ass soon as I opened the float bowl again there was more water in the tank.  So I will try some differnt gas today.  But that has got to be it.  Hell it cant run on water.
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Re: 87 savage carb problems "Help"!!
Reply #29 - 09/11/07 at 05:01:01
 
ALRICH wrote on 12/31/69 at 16:00:09:
I think I found my problem finally.  Las night when I was trying to get it running.  I decided to drain some gas out of the petcock to see if it smelled like bad gas or anything.  Well I found there to be water in it.   So I drained the tank and carb.  Went got some more gas from the same station that I got the las gas from not even thinking about it.

When I filled it up the bike ran without the choke for about 2 minutes then starting bogging down again.  Ass soon as I opened the float bowl again there was more water in the tank.  So I will try some differnt gas today.  But that has got to be it.  Hell it cant run on water.  

That sounds reasonable to me!
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