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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> That plug covering the mixture screw...( on carb) /cgi-bin/YaBB.pl?num=1386521581 Message started by Bluesman on 12/08/13 at 08:53:01 |
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Title: That plug covering the mixture screw...( on carb) Post by Bluesman on 12/08/13 at 08:53:01 ..on our bike , it has some kinda slot- not deep enough for a screwdriver, but still a slot. Ar we looking in the correct place? How deep can you drill before you interfere with or screw(!) up the innards? And if we go metric..what size of drill, and what size of screw....and is a slide hammer required, or will just "yanking" the screw work? |
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Title: Re: That plug covering the mixture screw...( on ca Post by Serowbot on 12/08/13 at 08:57:48 http://suzukisavage.com/cgi-bin/YaBB.pl?num=1221818822 Very little space behind the plug... I wouldn't count on more than 1/8"... Be gentle, be careful... drill at a very slow rpm... I've never needed a puller,... the drill bit usually catches it and pulls it out...;)... |
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Title: Re: That plug covering the mixture screw...( on ca Post by oldNslow on 12/08/13 at 09:15:41 Quote:
There is no slot in the plug. Are you sure it's not already out and you are looking at the screw? The slot in the screw is very shallow and narrow. http://suzukisavage.com/cgi-bin/YaBB.pl?num=1221818822 |
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Title: Re: That plug covering the mixture screw...( on ca Post by justin_o_guy2 on 12/08/13 at 09:17:32 If you see a slot, its not the plug,,,That thing is smooth. |
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Title: Re: That plug covering the mixture screw...( on ca Post by verslagen1 on 12/08/13 at 09:20:52 617E787F62655464546C7E72390B0 wrote:
most I've seen have a dimple in the middle (for drilling) |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/08/13 at 10:25:06 Hang on, will get a pic up in the next 15 mins. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/08/13 at 10:39:45 Take a look at this.... http://www.svartvittfoto.se/plug.jpg |
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Title: Re: That plug covering the mixture screw...( on ca Post by Serowbot on 12/08/13 at 10:52:18 Yup, that's it... looks like someone tried to dremel a slot in it?... :-?... |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/08/13 at 10:56:48 Naw. It was untouched by humans, the marks are from yours stupid trying to adjust it. Now...this is the plug that needs a careful shallow drilling? And underneath, there is a mixture screw? Jeez, I gotta love my trusted Amal carbs on the Triumph chop..no hidden features there :-) |
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Title: Re: That plug covering the mixture screw...( on ca Post by verslagen1 on 12/08/13 at 11:05:53 those plugs are usually flush. and I'm seeing a relief around the edge of the "plug" if you had a left handed drill, now's the time to use it, just in case it is the screw. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/08/13 at 11:11:36 I do have a lefty drilling machine....but no left-handed drill bits. Thanks for the heads-up...should I mention that this is a EU model, import from Germany? Would that make any difference/sense? |
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Title: Re: That plug covering the mixture screw...( on ca Post by old_rider on 12/08/13 at 11:56:41 Take yer screwdriver, stick it in the slot... and give the end of the driver a few little taps (I mean lite little taps) with a hammer... maybe you can break it loose. Maybe a little penetrating oil also wouldn't hurt before ya try that. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/08/13 at 12:03:04 Hm. You both actually think that might be an unplugged mixture screw? WouldnŽt that be a "first ever"? OK, I will tap it carefully tomorrow. |
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Title: Re: That plug covering the mixture screw...( on ca Post by old_rider on 12/08/13 at 12:17:11 It looks to be too far out to be a screw..... but it could be a non OEM jet screw someone had to use to make the bike run correctly until they got the proper one in. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/08/13 at 12:26:47 Wondering..just why would anyone bother to take out the "original" plug & screw, and sub the whole thing with some homebrew stuff? |
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Title: Re: That plug covering the mixture screw...( on ca Post by old_rider on 12/08/13 at 12:31:43 My thoughts are , why would they slot the plug??? it doesn't screw out, it has no threads. If it were an OEM screw, it wouldn't even be seated in that position and would be leaking fuel from the threads. Might be they could not find an OEM one at the time and to get buy used an off brand. |
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Title: Re: That plug covering the mixture screw...( on ca Post by oldNslow on 12/08/13 at 14:10:19 I've seen small, screwdriver slotted, brass pipe plugs that look a lot the what's in your photo. Can you see any threads on the bit of plug that is sticking out ? The bore that the plug is pressed into is not threaded so if that's what it is I've got no idea why someone would put one in there. If your bike runs ok right now think carefully about your next move. Replacement carbs are fairly expensive. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/11/13 at 03:33:11 So far, I decided to leave this one alone. I have noticed differences between US carbs and EU carbs in another aspect - the float bowl drain is different - so I keep thinking the EU Savages came here with maybe a fixed ratio thingy that was pressed/glued in place to satisfy EU regulations. Until I hear from someone with a EU bike who took the step and drilled it...IŽm leaving it. The mixture looks reasonable anyway, judging by the plug color. BTW...I have now seen TWO carbs, with the slot in the slotted "plug" in exactly the same position.. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Dave on 12/11/13 at 04:19:24 You might be onto something. Maybe they did adjust the carbs and epoxy the screw in place? It does look like maybe there is a little bit of grey goo around that screw. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/11/13 at 04:45:13 Yep, IŽll have a closer look at the second carb (a -97, and much cleaner) with a loupe/magnifying glass later today to check for glue traces. |
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Title: Re: That plug covering the mixture screw...( on ca Post by verslagen1 on 12/11/13 at 07:50:38 49677E6E78666A650B0 wrote:
I have 2 bikes, 1 has the drain the other doesn't. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/11/13 at 14:42:20 The ones I have seen (EU) have a downward 10mm hex bolt only. No sideways screw and separate drain outlet. This makes me think Eu carbs are different. That makes me cautious about the US drillable plug vs possible EU fixed mixture glued plug issue. |
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Title: Re: That plug covering the mixture screw...( on ca Post by S-P on 12/11/13 at 16:11:04 That would make sense if they didn't have to meet the California emissions standards. The carbs could be different. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Steve H on 12/11/13 at 16:32:16 My 87 didn't have a plug over the mixture screw when I got it. I can't say if the PO took it out or there wasn't one. Many engines from the 80's other than cars didn't have plugs over the adjusters. Now, they just cut the jet to the exact size it needs to run "right" and put it in on most things. There's not even a screw or cover. |
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Title: Re: That plug covering the mixture screw...( on ca Post by Dave on 12/12/13 at 03:26:48 4E550C0F0E090B043D0 wrote:
That has been going on in the small engine business for many years. Carbs with no adjustments - the jets are built right into the carb and they take their best stab at jetting them to fit all elevations. It sure can make for some bad running engines. A fellow in this building bought a pair of the little Doodle Bug minibikes for his sons. He brought them to me to look over as one did not run well. I spent a long time working on the bad running one - they have Chinese engines on them and no carb adjustments. I never could get the problematic one to run right. I believe the carb was just too lean. I tried raising the fuel level in the carb by adjusting the float and it ran a tad better - but never as good as the other bike. If the carb had an adjustement screw....it would have been easy-peasy! |
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Title: Re: That plug covering the mixture screw...( on ca Post by swedishbiker on 12/12/13 at 05:27:59 My 1993 Savage carb looks same as in the picture. |
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Title: Re: That plug covering the mixture screw...( on ca Post by old_rider on 12/12/13 at 06:15:42 Took a pic of the wife's, best I could with the cell phone... see how the jet is a ways back inside? Well, when I find another savage around here I'll take a snap of the carb on it... http://i1047.photobucket.com/albums/b471/Orphistle/IMAG0713.jpg |
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Title: Re: That plug covering the mixture screw...( on ca Post by Steddy58 on 12/12/13 at 06:38:28 Hi, I'm in the UK and the mixture screw on mine looks like the one on Bluesmans carb, the one on old riders looks like it may have had the plug taken out. As Dave pointed out there does seem to be something like a glue residue around the screw and in the slot,perhaps someone did alter it to achieve the correct emissions and then epoxied it over, speaking from experience if its running ok leave well alone,or you'll end up like mine ( in bits in me mams garage) :) |
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Title: Re: That plug covering the mixture screw...( on ca Post by Bluesman on 12/12/13 at 15:34:25 Well, looks like the "remove the plug and adjust away" tip is not universal after all. Good thing we noticed the differences. IŽm going to contact a scrapper to see if I can get a cheapo EU Savage carb to dissect. Until then - beware. |
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