|
SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> petcock? fuel line? cold weather? /cgi-bin/YaBB.pl?num=1258260197 Message started by Rocco on 11/14/09 at 20:43:17 |
|
Title: petcock? fuel line? cold weather? Post by Rocco on 11/14/09 at 20:43:17 SO! i rode yesterday and everything was amazing! i started her up 2day and she died b4 hitting the end of the block, turned up the idle, seemed to be ok. but it kept diein or wantin to die at a stop...so i turned the petcock to res for giggles and it didn't happen again. i waited til i got home b4 i put it back to "on" sat in the driveway for a minute or so and it idled fine. can i just leave it on res and watch my mileage VERY carefully? i'll probably replace the one line from the carb to the tank(on the right side, already replaced the one on the left side). is it the petcock? is it expensive or difficult to swap to the raptor? OR can i just leave it in res??? i'm sure this has been answered many times over, but i love hearing the new and improved advice!! |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/14/09 at 21:34:22 You're runnin' out a gas, ya' big dummy!... ;D Seriously,... a typical petcock problem is cured by blocking off the vac line and running on Prime... or a vac line leak, by just running on prime... Going to reserve,... could mean that your On postion fuel tap is clogged and needs cleaning, or... You're runnin' out a gas, ya' big dummy!... ;D ;D ;D ;D I only say that, 'cause you're too far away to smack me... ;) BTW,... a Raptor petcock is about $20 + $10 shipping... very sexy for a metal thing... |
|
Title: Re: petcock? fuel line? cold weather? Post by Oldfeller on 11/15/09 at 03:46:24 Rocco, Drain it, then take your tank off and pull the petcock. The screen on your petcock is likely blocked off with varnish -- some carb cleaner can work wonders to make your stock vac petcock behave a lot better. Or, I second the Raptor replacement idea -- the only downside to them is having to remember to turn your gas off every time you stop. |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 11/15/09 at 05:44:42 lol serowbot, you're too cool for me to smack!!! i thought it was low on gas too but i just filled up the night before!! ok, i'll replace that line, i'm goin riding 2day with some friends hopefully i can get through this lol and then as soon as i can i'll pull the tank! and i'm glad the petcock isn't expensive!!! |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/15/09 at 06:48:00 You'll have to drain the tank,... and when you pull the petcock (two bolts), you'll have to gently bend the pick-up tubes to get them out of the tank, if you do it with the tank on the bike... but it is possible.. Spray that screen clean, then blow through from the bottom to make sure it's clear... ;) |
|
Title: Re: petcock? fuel line? cold weather? Post by justin_o_guy2 on 11/15/09 at 08:03:06 Pulling the rear hold down bolts & lifting the rear of the tank might make pulling the petcock a little easier, |
|
Title: Re: petcock? fuel line? cold weather? Post by Sarge on 11/15/09 at 09:48:46 While you are examining the petc0ck, be sure to check the four screws holding the diaphragm cover on. A couple of mine loosened up and caused a vacuum leak. Sarge :) |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 11/15/09 at 14:06:05 awesome! thanks guys! i went riding 2day with my friends, 100 miles total but she ran perfect! like a scalded dog actually...not one problem with the petcock in the on position....maybe she was mad @ me!! i'll still clean the screen and replace the line though!! http://photos-a.ak.fbcdn.net/hphotos-ak-snc3/hs002.snc3/10960_1079378564570_1829467793_162000_66982_n.jpg |
|
Title: Re: petcock? fuel line? cold weather? Post by BurnPgh on 11/16/09 at 00:04:17 oh wow! Another Harley. How unexpected. You're shooting from the wrong side my friend. |
|
Title: Re: petcock? fuel line? cold weather? Post by Routy on 11/16/09 at 06:44:43 Sorry guys, but I think you're barking up a tree where the problem ain't !........or maybe its, ...."the wrong tree" ? Its the same as blaming a fuel filter, for low or intermedieate speed problems. As w/ any carbed engine,....anytime the engine runs fine at higher speed speed, don't blame any part of the "main fuel delivery system" for idle or low speed problems ! That fact will never change,.....sorry. |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/16/09 at 07:32:37 If the reserve tap fixes it,... the on tap has to be the problem.... Make sense?... |
|
Title: Re: petcock? fuel line? cold weather? Post by Routy on 11/16/09 at 07:40:31 If it really fixes it, then you would have to be right. But did you put any logical common sense thinking into my statement before posting ? I can only tell it like has been proven ever since carbed engines existed. I mean, if a carb is getting enough fuel to run WOT, how could it not be getting enough to go slow,.....or idle. But then, I'd bet you would have known that w/o me tellin it ;) |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 11/16/09 at 08:25:04 i'm lost! and i took a bunch of pics, posted that one cuz i figured u guys remembered what my beast looked like!!lol ok, so what are we saying here? what should i do to fix the problem?? |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/16/09 at 08:30:44 Yup,.. and Yup,... I do get your point,... but if going to reserve fixed it.... there's no other option... otherwise,... I'd guess different.. |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/16/09 at 08:37:10 Rocco,... It still stands true, that if your bike runs fine on reserve, it has to be a plugged pick-up screen on the petcock... But, if you are mistaken, and the problem can occur on reserve too... it is more likely a carb problem like Routy says... clogged pilot jet, sticky slide, low idle.... Let us know, if you notice anything else... |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 11/16/09 at 08:55:59 thank u sir! you are the man!! i don't think it's the carb, as we just put the pilot in it not too long ago..not saying it couldn't be but i haven't touched the petcock ever. it ran awesome yesterday so i have no idea, maybe she was mad @ me lol i'm def goin to replace that line, clean the screen(hopefully it's not too complicated lol) and while the tank is off change the plug for the heck of it. btw how fast should i be @ idle? is it supposed to be going "a hundred miles per hour" lol!!!! |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/16/09 at 09:38:25 Without a tach,.. it's real hard to be definitive... But, it's better for the engine idle to be a little high than low... that insures good oil flow... So,.. you don't want to be as low as you can go, to sound cool... It shouldn't be lopey or bogging... Harley guys are famous for setting the idle real low to sound cool... Mine changes with the weather, so I turn it up at lights some time... I think it's supposed to be 1000 to 1100 rpm... ??? Repeat after me... Budabudabudaubudaubudaubuda.... Perfect... ;) |
|
Title: Re: petcock? fuel line? cold weather? Post by Routy on 11/16/09 at 10:53:58 I really think you are being throwed a curve because it is an intermittent problem. I think I would be suspecting the carb itself. I really think that the vacum operated shutoff is a good feature, and I would hate to see you do away w/ it, and then have that not be the real problem either. From what I have learned here is that the only problem the vacum shut off ever gives is a deteriorated hose, or the diaphram itself. Thats not hard to trouble shoot and repair. Good luck. 4B767A7A76190 wrote:
|
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/16/09 at 11:20:11 Routy,... the hose is easy, just replace it... a torn diaphragm,... not so easy,... they don't sell it... So, you have to buy a whole new petcock.. $70.00 + shipping... I know,... sucks... Booga!.... :-? Quote:
You like as long as it works,.... once it gives you hell,... Not so much.... |
|
Title: Re: petcock? fuel line? cold weather? Post by Routy on 11/16/09 at 13:41:30 Right,....that changes that story a bit for sure. Thanks |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 11/18/09 at 10:39:11 went out again 2day, probably take her to work..everything is fine and dandy....was she just mad @ me? lol |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/18/09 at 15:35:13 Maybe,..whadya' say to her?... :-? |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 11/18/09 at 22:11:24 lol i spent time cleaning mine and my girl's cars....maybe she was jealous!! so my dew can fell out of the muffler and that is making a weird noise, and i can swear the valves are getting louder BUT i have a hopeful hope lol it's cold here, like 70 and lower @ night, which is ALOT colder then she's used to. she doesn't backfire @ all now that it's cold and she isn't as loud. colder air is easier to move and she does feel peppier....SO maybe she's always made these noises and i'm just now able to hear them. i haven't checked the valves, i've only got 9000 miles on her, i am just scared to death to check the valves....is there a step by step for this? i played with the air bleed screw and the stalling problem is solved, but now i get kind of a "pulse" at idle.... i have no idea what is causing these, or if they are even new problems......all i know is that i don't like it when we don't get along!! |
|
Title: Re: petcock? fuel line? cold weather? Post by Yonuh Adisi on 11/18/09 at 23:23:25 1F222E2E224D0 wrote:
Valve adjustment instructions http://suzukisavage.com/cgi-bin/YaBB.pl?num=1255580802 |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 11/19/09 at 08:51:31 supposed to check valves every 4k,... I go 6k... but at 9k.... CHECK THEM VALVES!..... >:( ;D ;D ;D First time will seem hard,... but, after you get it,... it's just a half hour routine.. ;) |
|
Title: Re: petcock? fuel line? cold weather? Post by justin_o_guy2 on 11/19/09 at 12:07:30 When mine was new, it needed valves adjusted more often. As Ive learned to set them to closer tolerances( Just my thinking here), the cam doesnt slam the adjusters down on the valves AND, all the parts involved have set to each other & done some wrok hardening. Mine doesnt need adjusted every 3 to 5 K miles now. |
|
Title: Re: petcock? fuel line? cold weather? Post by Routy on 11/19/09 at 13:09:55 What is the experience here,....do the valves tend to tighten or loosen over time ? Mine has 4600 on it, doubt they have been checked. If they tend to tighten, theres really no way of knowing w/o checking. But if they tend to loosen, I believe I would hear them. As they are now, they (the engine) sounds reasonably quiet. |
|
Title: Re: petcock? fuel line? cold weather? Post by serenity3743 on 11/19/09 at 13:23:15 7F706A716D6B787A727C6B190 wrote:
If you can "feel" a little slack in the rockers when you move them with your fingers (with the inspection covers off), AND you don't hear them clacking when the motor is running, you're likely to be good. |
|
Title: Re: petcock? fuel line? cold weather? Post by justin_o_guy2 on 11/19/09 at 18:43:07 Every time Ive checked them theyve been looser than when I set them. The little adjusters smack on the valves & theyre pointy. Thats why I adjust as tight as I can & still stay in spec. That way, the cam doesnt get such a running start to smash them against the valves. |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 11/19/09 at 23:31:31 i replaced the other fuel line, it had a small crack in it, maybe the culprit!! the new one is WAY thicker then the old so i couldn't fit the "slinky thingy" around it....oh well i turned the air mix screw, it was out like 5 turns lol i believe i have it somewhere around 2 maybe 2.5 right now, and she sounds good. my friend turned my idle down, and said the valves sound fine. we went to bike night and got drenched to and from.....my header wrap was smoking and some guy @ a light goes "you're on fire" to which i replied "thank u!" ;D |
|
Title: Re: petcock? fuel line? cold weather? Post by Routy on 11/20/09 at 04:38:09 4D5254534E4978487840525E15270 wrote:
Thanks. And good logical thinking. Like most times in a valve train, where theres noise, there's friction, and where there's friction there's wear :( Not hard to remember the pushrod solid lifter days,....always adjusting |
|
Title: Re: petcock? fuel line? cold weather? Post by Digger on 12/17/09 at 20:49:58 5B544E55494F5C5E56584F3D0 wrote:
Unless you're talking about a vacuum operated petcock that is leaking fuel into the intake manifold and causing a rich condition. Higher engine speeds will tend to mask the condition due to the fact that intake vacuum goes down and, thus, less fuel gets sucked into the intake. |
|
Title: Re: petcock? fuel line? cold weather? Post by Routy on 12/19/09 at 06:26:33 79545A5A584F3D0 wrote:
Unless you're talking about a vacuum operated petcock that is leaking fuel into the intake manifold and causing a rich condition. Higher engine speeds will tend to mask the condition due to the fact that intake vacuum goes down and, thus, less fuel gets sucked into the intake.[/quote] Very probable. But I ain't figured out how that counterdicts my statement, or if it was meant to :-? |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 12/19/09 at 09:15:30 What Digger is saying, is when the vacuum diaphragm leaks,... the symptoms are most apparent at high vacuum conditions... which is at idle and low speed steady cruise... At Wide open throttle, vacuum is close to zero, and so, very little gas is sucked down the vacuum line directly into the intake... so no symptom at full throttle... Let off the gas,... vacuum goes way high and gas is drawn down the vacuum tube, and the bike stumbles rich... Full throttle,... no symptoms Low speed and idle,... stumbling, dying, backfires... ;) |
|
Title: Re: petcock? fuel line? cold weather? Post by RidgeRunner13 on 12/19/09 at 10:39:27 And even if everything is functioning properly, the vacuum controlled petcock can cause you to run lean under high load conditions. If you are running 65-70 into a 30 mph headwind, you're pretty much wot with little vacuum left to keep the petcock open. I checked this with a gauge teed in & taped to my gas tank. I always run in prime & at the first sign of a drip from the carb, I replace the needle & seat. Seven years + & I've never had a problem. I do think I'll get a raptor petcock though because at the price it's easier than modding the oem. 8-) |
|
Title: Re: petcock? fuel line? cold weather? Post by Routy on 12/19/09 at 17:17:14 2E382F322A3F32295D0 wrote:
Yes I understand all of that, and not a problem, except that my post was included in the quote as if his post counterdicted mine, which is doesn't and I guess was not meant to. Mine only pertained to the several posts here that believed a plugged petcock screen, or fuel filter could be causing a low speed lean or fuel starvation problem, while running fine at higher speeds. |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 12/19/09 at 21:03:44 hmmm makes sense! she stalled again 2nite bad, but i had the idle low, and it was about 40 degrees colder then it usually is! i cleaned the petcock screen(red rocket popsicle thingy) but i'm not sure if this was a weather problem or what! |
|
Title: Re: petcock? fuel line? cold weather? Post by MMRanch on 12/23/09 at 21:29:05 I'M HAVING A SIMULAR PROBLEM SINCE COOL WEATHER SET IN. I THINK ITS DUE TO THE ALCHOL IN THE GAS BECOUSE I ALLREADY HAVE A RAPTURE SHUT-OFF VALVE AND HAVE DOUBLE CHECK THE TIED OFF VACUME LINE ( BOTH ENDS). AFTER I STOP MOVING AND THE ENGINE IDLES FOR A FEW MINUTES WITHOUT AIR FLOW COOLING , THINGS RETURN TO NORMAL. ANYONE ELSE THINK FUEL IS THE PROBLEM ??? |
|
Title: Re: petcock? fuel line? cold weather? Post by Serowbot on 12/23/09 at 21:58:42 If you can shut off the rapture,... I'd sure appreciate it... :-? Quote:
are you sure you get this concept?... If you have a "Raptor" petcock,...there's only one place to cap off... that would be,.. blocking the air tap on the carb... is that done?... if not, you will suck air and run lean... |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 12/24/09 at 15:20:13 i lowered the idle, and she's running good 2day, the starter made a funny noise a couple of times but didn't do it again. my friend is gonna check for air leaks, and eventually i'll do a raptor. just glad i have backup on here !! ;D |
|
Title: Re: petcock? fuel line? cold weather? Post by justin_o_guy2 on 12/24/09 at 21:32:24 What kinda RPM you suppose its idling at, now that you lowered it a bit? |
|
Title: Re: petcock? fuel line? cold weather? Post by MMRanch on 12/25/09 at 23:03:02 Your right Serowbot "One end capped" I stand corected. Bike still sputters on 10% alchol and cool weather. |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 12/27/09 at 12:50:15 uuuum well, instead of a machine gun it's kind of badum...badum...badum instead of budumbudumbudumbudum i know that is no help, but before it didn't sound like she slowed down when i was @ a stop, now it does, and she growls alot more when she's lower idle(which i like) =] |
|
Title: Re: petcock? fuel line? cold weather? Post by Digger on 01/04/10 at 19:17:05 27283229353320222A2433410 wrote:
Unless you're talking about a vacuum operated petcock that is leaking fuel into the intake manifold and causing a rich condition. Higher engine speeds will tend to mask the condition due to the fact that intake vacuum goes down and, thus, less fuel gets sucked into the intake.[/quote] Very probable. But I ain't figured out how that counterdicts my statement, or if it was meant to :-? [/quote] Sorry, but I DID mean to disagree with your point as stated in the quote. I was considering the petcock as part of the fuel delivery system. The petcock DOES have a failure mode that will manifest itself as poor low rpm engine operation, leaving high rpm operations relatively unaffected. However, I saw a few posts ago that you were referring to a fuel delivery blockage problem in your statement. If that was the case then, yes, I agree with your statement. Ride safe! ;) |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 01/07/10 at 08:02:02 so my friend thinks i may have an air leak somewhere between the carb and engine(the only place for an air leak right?) but i'm still not sure, he's gonna see if he can find it. if not maybe i'll just throw a raptor petcock on there IF someone has one and would be so kind as to TELL ME HOW TO DO IT lol then i shouldn't have a problem. what happens if u 4get to turn the petcock off and it sits over night? |
|
Title: Re: petcock? fuel line? cold weather? Post by justin_o_guy2 on 01/07/10 at 11:25:48 Squirt some WD40 around in the potential leak area. The idle will change. |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 01/09/10 at 10:40:06 that's what he was saying! the idle sometimes like to go up and down a little while @ a light....hmmmm i'm going to laugh if i put a raptor on there, and i never have to worry again ! |
|
Title: Re: petcock? fuel line? cold weather? Post by Digger on 01/10/10 at 20:17:31 417C70707C130 wrote:
Short answer (assumes OEM petcock): 1. If the petcock is good and the needle valve is good, no problem. 2. If the petcock is good and the needle valve is bad, no problem. 3. If the petcock is bad and the needle valve is good, no problem. 4. If the petcock is bad and the needle valve is bad, problem. If the petcock is a non-vacuum design (e.g. the Raptor petcock): 1. If the needle valve is good, no problem. 2. If the needle valve is bad, problem. Clear as mud? |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 01/11/10 at 08:01:21 hahaha thank u sir!! i think i got it! so what goes wrong with the stock petcock? it doesn't hold the vacuum @ idle? |
|
Title: Re: petcock? fuel line? cold weather? Post by justin_o_guy2 on 01/11/10 at 09:34:43 Diaphragm splits/cracks. |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 01/11/10 at 11:31:28 oooooooooooooooooooh! ok cool, well then it happening only sometimes is the weird part!! |
|
Title: Re: petcock? fuel line? cold weather? Post by Digger on 01/11/10 at 20:48:55 0C313D3D315E0 wrote:
Rocco, I had a petcock problem that was intermittent: http://suzukisavage.com/cgi-bin/YaBB.pl?num=1152108113/0 All bets are off if the petcock diaphragm starts acting up! |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 01/12/10 at 19:12:50 thanks! ok, so u took off the vacuum line, can i just run it in res and leave it like that? or should i leave it on prime and turn it to res on shutoff, i just wanna be totally clear ! i wouldn't mind that @ all, as i don't wanna buy a raptor just yet. if i can run it as mentioned above i'm down for that, if not maybe i'll convert it to a manual...as soon as i figure out how lol |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 01/14/10 at 07:45:14 ran her in prime all night, and not a problem! a bike not stalling @ idle...what a concept!! do i have to switch it back to "on" when it sits? or do i leave it in pri???? so now i am sure it's the vacuum, i'm goin to convert it to manual, hopefully soon because i want to paint my head covers =] |
|
Title: Re: petcock? fuel line? cold weather? Post by justin_o_guy2 on 01/14/10 at 07:57:03 If you leave it in prime & the carb float/valve doesnt shut off, youve got a problem, |
|
Title: Re: petcock? fuel line? cold weather? Post by Rocco on 01/14/10 at 12:54:50 thats during shutoff right? i can ride it in prime? lol |
|
Title: Re: petcock? fuel line? cold weather? Post by Yonuh Adisi on 01/14/10 at 13:53:55 536E62626E010 wrote:
Yes, but pay close attention to your mileage, because in Prime you have no reserve. |
|
Title: Re: petcock? fuel line? cold weather? Post by Digger on 01/14/10 at 21:03:46 Rocco, I rode for years with a bad petcock before I replaced it with a Raptor. Before I started the bike (see signature) for the first ride of the day, I set the petcock lever to PRI. I left it on PRI while I was riding the bike. If I parked it at a store or something , I just left it on PRI. When I parked the bike in the garage after the ride, I set the petcock lever to ON. I was aware that I no longer had the Reserve feature to protect me. Worked for me! |
|
SuzukiSavage.com » Powered by YaBB 2.2! YaBB © 2000-2007. All Rights Reserved. |