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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Slide sticking /cgi-bin/YaBB.pl?num=1516207351 Message started by verslagen1 on 01/17/18 at 08:42:30 |
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Title: Slide sticking Post by verslagen1 on 01/17/18 at 08:42:30 This is past frustrating. Been having the same problem off and on for a couple of months progressing to on and on. I'm down to cleaning the slide every night. The slide will hard stick and limit my max speed on the flat to ~65. Last weekend I rebuilt the old carb out of the 88 and put it in with the same problem. Had a K&N in there for years and have changed that for paper (hi-flo) When I rebuilt the 88 carb, I noticed the intake rubber ducky was filthy. Last night I pulled the air filter and there was a build up of dirt on the far side under the breather port. Sorta cleaned it. Only thing left is to pull the airbox and pressure wash it. |
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Title: Re: Slide sticking Post by Dave on 01/17/18 at 08:47:22 Have you opened up the oil drain tube for the airbox and drained out the goo? |
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Title: Re: Slide sticking Post by verslagen1 on 01/17/18 at 09:00:10 Yep, wasn't much there... and there is a plug. |
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Title: Re: Slide sticking Post by badwolf on 01/17/18 at 09:35:02 This may sound simple, but, if you are having the same problem with 2 different carbs check the fuel flow and throttle & cable & routing, Something may be hanging. |
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Title: Re: Slide sticking Post by ohiomoto on 01/17/18 at 10:04:57 I replaced my slide because the coating had worn off and was very sticky. I wasn't cheap, but it made a noticeable difference. |
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Title: Re: Slide sticking Post by verslagen1 on 01/17/18 at 10:37:50 3331223C222038313922500 wrote:
CV slide is vacuum activated, so I doubt it's cable related. It acts like a stuck slide, sometimes a good bump will result in whoa nellie moment. And removing the slide is difficult because it is... stuck. On a positive note... I can pull and replace the carb in less than 30 minutes. :'( |
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Title: Re: Slide sticking Post by Gary_in_NJ on 01/17/18 at 11:10:33 Did you use the same needle on both slides? Maybe the needle is bent or out of round. |
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Title: Re: Slide sticking Post by batman on 01/17/18 at 12:12:41 I swear by OLDFELLER's air cleaner and have used it for years. the problem with the breather hose is it discharges between the air filter and the carb and at a level almost even with the carb opening .It may be worth a try to drill through the box ,an insert a short nipple to carry it beyond and maybe below the filter ,allowing the gook to drop out and only oil fumes to be sucked back threw the filter,( with a short hose and small filter of the type used when removing the air box-there's room) keeping the slide cleaner. Of's filter is loaded with veg oil ,I don't believe oil fumes would hamper it's operation. My air box has two drain positions ,one with a hose (the section between the filter and carb)and one with a small cap that could be swapped( to drain the section on the inlet side of the filter.) |
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Title: Re: Slide sticking Post by verslagen1 on 01/17/18 at 13:04:22 6F6C79606C6339350D0 wrote:
I had the K&N before OF invented it or I would have. Quote:
Not a bad idea, with the right hose and a tight fitting hole, no nipple necessary. Quote:
I knew they had 2 drain ports, didn't know they were front and back. Will check. |
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Title: Re: Slide sticking Post by batman on 01/17/18 at 14:02:31 Had to double check myself, yep ,one facing the rear of the bike drains that section. |
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Title: Re: Slide sticking Post by Dave on 01/17/18 at 14:11:02 They do have two ports cast into the plastic air box - but only one is used as a drain....the other one is capped off at the factory and isn't used. It is possible that the tube or port is blocked....and the air box does have a puddle of go inside - even though you have removed the plug and drained the tube. |
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Title: Re: Slide sticking Post by piedmontbuckeye on 01/18/18 at 07:26:13 This may be objectionable to some here, but on every carb I have had that was a CV carb, I have faithfully used LUCAS gasoline additive (I buy it by the gallon from Summit Racing- lots cheaper!) as I use it in my auto and lawn mower. It is used at a 400:1 ratio which is 3.2 oz per 10 gallons of gas so it lasts a long time. However, it has kept my carbs absolutely spotlessly clean - in all locations, AND it keeps all the moving parts lubricated. Whenever I have taken them apart after I started using the gas additive, there was a slight slippery film on the slides and even up to the diaphragms. I swear by it! On the BMW's which have been notorious for having terrible BING carbs, after using the gas additive, I never ever had even one more problem with dirtiness or issues with slide failing to properly move. |
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Title: Re: Slide sticking Post by verslagen1 on 01/18/18 at 08:10:43 So, after a long night wrenching, cleaning the airbox, r&r all in the way of said airbox, cleaning the slide, day 1 has started off well. The cagers are happily terrorized from the #1 lane. We'll see how it goes. |
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Title: Re: Slide sticking Post by norm92de on 01/18/18 at 15:12:17 FWIW, Stripping two stroke carbs -you know what they are don't you :)- I always found them to be in pristine condition, I think because of the petroil. I have used a tiny drop of oil in various 4 stroke bikes thinking it would help the carb. My reservation is that it might foul the cylinder to some extent? It seems like a good idea? Gas seems to me to be a poor lubricant. What's the consensus? :-/ |
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Title: Re: Slide sticking Post by norm92de on 01/18/18 at 15:13:49 P.S. I have never liked CV carbs. :'( |
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Title: Re: Slide sticking Post by piedmontbuckeye on 01/19/18 at 05:48:09 57564B54000B5D5C390 wrote:
I don't like them either!! Supposed to give smoother throttle movement. Back in the real old days, on my first BMW ('68 R50) were two Bing carbs that the body was aluminum and so was the slide!! Those two don't slide! They were a pain to balance as one would stick and then the other! So..I machined solid brass slides. Worked much better! |
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Title: Re: Slide sticking Post by Gary_in_NJ on 01/19/18 at 06:58:58 piedmontbuckeye & norm I think you guys might be on to something, that a little lubricant in the fuel could help the needle slide better. In fact, it might be good for carb health in general. I have some MMO that I can ad a cap full to each tank. While I don't have the problem, I just may give it a try to keep from having the problem. |
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Title: Re: Slide sticking Post by verslagen1 on 01/19/18 at 08:08:55 Last night it stuck going home, and after cleaning and polishing, it stuck again this morn. I'll be getting the lucas treatment ASAP. |
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Title: Re: Slide sticking Post by stewmills on 01/19/18 at 08:51:15 I would suspect the slide as well or the carb itself, one of the two (or both) being dirty and causing the sticking. You said it was hard to get out so it sounds like it is in fact sticking in the carb. However, don't ignore paying some attention to the diaphragm. If you ride a lot ai wouldn't think yours has permanent creases in it, but if something sits long enough in one position it sorta gets a memory for that position and wants to stay there or go back there, etc. I'm not sure what the longevity of the diaphragm is before it gets old and stiff, but any chance yours is just hitting a point in sliding up where the stiffness in the diaphragm is not able to be overcome by the vacuum, and the little bumps are just enough to jog it past that point? Just a random thought...I have no personal experiences or knowledge to substantiate this. |
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Title: Re: Slide sticking Post by norm92de on 01/19/18 at 08:59:28 That 400/1 ratio works out very close to 1oz per tankful which is about what I have used in my S40. I use ordinary motor oil. As I mentioned I'm not sure of the long term effects but I am willing to bet it doesn't hurt the inside of the gas tank. Never had any rust on my two stroke tanks. :) |
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Title: Re: Slide sticking Post by batman on 01/19/18 at 15:10:45 I don't understand the "dirt" your finding in the carb, is it possible that the breather hose from the motor is disintegrating from old age ? I've heard it said rubber and oil don't mix, and it gets pretty hot out there in Hollywood :) |
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Title: Re: Slide sticking Post by piedmontbuckeye on 01/20/18 at 07:00:29 756671706F6264666D32030 wrote:
I am not sure if the small bottle LUCAS sells is the same as the LUCAS stuff I buy in the gallon jug, but I swear by the gallon jug stuff. Every time I have taken apart any of my fuel system (hoses, carbs, etc.) there has always been a little coating of lube - and I never got that from anything else. That's even with the 400:1 ratio! I figure it also keeps the inside of my tank and the fuel petcock lubed as well. In my car, I get about 4 miles per gallon better mileage on trips than the rating that came with the car. Over 40 MPG. I don't have objective proof , but .....?? |
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Title: Re: Slide sticking Post by verslagen1 on 01/24/18 at 22:08:11 I think I got it licked. New air filter, still did it. Air box cleaned, still did it. Carb clean, still did it. New breather hose, still did it. WTH? what's left? something you poor SOB's don't have... carbon canister. Pulled the slide and I noticed a black streak coming from the port. So I pulled the hose and plugged the port. Day 1 no issues... we'll see how it goes. |
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Title: Re: Slide sticking Post by batman on 01/24/18 at 22:21:25 Who said it never rains in California ? I bet your "breathing easy" now that you found your problem, ::) (ever thought about drilling the gas cap and getting rid of that junk, or do you need it for inspection ?) |
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Title: Re: Slide sticking Post by piedmontbuckeye on 01/25/18 at 06:18:42 Mine doesn't have a canister! |
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Title: Re: Slide sticking Post by Dave on 01/25/18 at 06:38:44 776E62636A6869736572646C627E62070 wrote:
Your bike was not sold in California! |
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Title: Re: Slide sticking Post by piedmontbuckeye on 01/25/18 at 07:09:29 58636E7968647F79626A67780B0 wrote:
Your bike was not sold in California![/quote] I figured that, but was just stating because his dilemma would not have been thought of by me due to my not having a canister! |
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Title: Re: Slide sticking Post by verslagen1 on 01/25/18 at 07:18:48 6261746D616E3438000 wrote:
beast is, I'll make a puke can someday. |
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Title: Re: Slide sticking Post by Dave on 01/25/18 at 07:22:29 4A535F5E5755544E584F59515F435F3A0 wrote:
Oh....now I get it! :-? In reading through the thread......it was not obvious to me where the goo could be coming from. Like you - I wasn't imagining a canister on the bike that would become a vacuum operated "goo dispenser". |
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Title: Re: Slide sticking Post by verslagen1 on 01/25/18 at 07:37:54 I have a new gas can... I hate it. It's one of those spill proof cans and has a spout that you depress to open. It's too big and just barely fits in the opening. I can't use it to refill the other cans either. The spout is too short too and it overfills the tank right up to the bottom of the splash shield. I'm guessing this has caused more gas to migrate into the canister. |
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Title: Re: Slide sticking Post by Gary_in_NJ on 01/25/18 at 08:56:24 I've converted all of my gas and diesel cans to this spout: http://ezpourspout.com/ About $10 on amazon |
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Title: Re: Slide sticking Post by norm92de on 01/25/18 at 09:01:00 Sounds like The Socialist Republic of California strikes again. After all they are only trying to protect us. Altruism lives! :) |
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Title: Re: Slide sticking Post by stewmills on 01/25/18 at 09:08:38 213225243B3630323966570 wrote:
I got a few new cans recently to store gas during bad weather. Hated the new spouts. I took them apart and busted out the no-spill flapper valve and spring, then put it back together in the "depressed" position and ran a few runs of electrical tape around the base to hold the two sliding pieces together and prevent spillage between these two sliding parts, and now I like 'em! Just have to make sure not to lose the spout caps so dirt and debris don't get down in there sitting up for periods of time. Worst case, an old plastic vitamin bottle large enough to cover the spout works too. |
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Title: Re: Slide sticking Post by verslagen1 on 01/25/18 at 09:26:42 I don't know why they've designed these no spill spout to work the way they do. Who fills the tank to 2" below the lip. I got a HF jerry can with it and it works great, just have to get it started then get it deeper into the tank and it auto stops at a good level. I've since verslagened the spout. It's a racing jug so the standard caps don't fit. I have another jug and the cap has 3/4 pipe threads, short nipple, ball valve, another nipple. Turn the valve and it fills to the preferred level. |
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Title: Re: Slide sticking Post by Dave on 01/25/18 at 09:33:20 Yea....and the thing that bothers me is that for some reason they sell the "CARB" gas cans everywhere.....even if we don't live in California. I use gas "jugs" that have screw on lids with big hoses on top. http://www.jegs.com/i/JEGS/555/80211/10002/-1?CAWELAID=1710745929&CAGPSPN=pla&CAAGID=39714413703&CATCI=pla-171299435831&CATARGETID=230006180039220981&cadevice=c&gclid=CjwKCAiAnabTBRA6EiwAemvBd1_mdTOK1VakItGKiWEOveiKVurJk54-qF4l4r6f5aR5HAIX3v948BoCKRcQAvD_BwE |
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Title: Re: Slide sticking Post by verslagen1 on 01/25/18 at 09:56:00 http://www.jegs.com/images/photos/500/555/555-80221.jpg This is the one I got, like I said the nozzle fits in the tank tightly and does fill fast, but causes gas to spray out too. Didn't do it the 1st couple of times I used it, can't figure out why. I'm using the other cap now with a valve. |
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Title: Re: Slide sticking Post by Búho Madrigal on 02/09/18 at 08:09:04 Hi, I also think it was a bad idea to put that way the breather hose of the engine, because the air filter gets contaminated with oil and the air cleaner box gets stained all arround. have you found any solution to this problem? |
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Title: Re: Slide sticking Post by verslagen1 on 02/09/18 at 09:15:01 It was suggested to extend the breather tube to the back chamber. But you'd need to do more than that to prevent splatter. A tube to extend to the back and down. Maybe a scrubbie to collect oil. You'd also need to switch drain tube to the back port. BTW: haven't had any problems after disconnecting the carbon can. |
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