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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Stalls while riding +30 mph (x2) /cgi-bin/YaBB.pl?num=1547768021 Message started by CriticalPeach on 01/17/19 at 15:33:41 |
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Title: Stalls while riding +30 mph (x2) Post by CriticalPeach on 01/17/19 at 15:33:41 I recently purchased a 2007 s40 boulevard (~9k miles. a few days after riding i took her out for dinner and on my way back, while riding at +30 mph it stalled out. It had trouble starting and I had to pull the choke out and figured it was a combination of the cold/low gas (though I only had to fill up 1.5 gallons of the 2.8 gallon tank). Fast forward 2 weeks and its about 55 degrees out and slightly misty/drizzle (barely anything) and the same thing happens. I had trouble starting it again as it wouldnt turn over. I left the choke out and started it and it got going. i filled up 1.8 gallons of fuel ( only drove like 80-90 miles since i filled up my tank) and made it home alright. I'm wondering if its: (1) spark plug is bad (2) petcock valve should be replaced with the raptor (3) weather related (4) clean the carb (i have seafoam, so i don't want to break it down yet without at least trying cleansing) (5) possibly any other issue. side note: air filter is new. Thanks in advance! |
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Title: Re: Stalls while riding +30 mph (x2) Post by justin_o_guy2 on 01/17/19 at 16:48:01 Easiest start. petcock valve should be replaced with the raptor If that's not it Probably need to clean the carb. I'm Seriously doubting it's the plug. One really good clue is Run it on prime. If it runs that way It's the Petcock. There is a thread on troubleshooting the Petcock I don't know how to find it, but it's in Technical |
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Title: Re: Stalls while riding +30 mph (x2) Post by Gary_in_NJ on 01/17/19 at 16:49:28 My vote is number 2. If it was a dirty carb it likely wouldn't idle or accelerate smoothly. |
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Title: Re: Stalls while riding +30 mph (x2) Post by CriticalPeach on 01/17/19 at 19:44:03 Is it possible that I'm underloading the engine? the owner's manual says to be in 4th at 30 and 5th shortly after. i think that may also be an issue. I'm going to replace the raptor, i just need to find a container that can house the fuel as well as a funnel. i have the replacement, rubber plugs and zip ties. |
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Title: Re: Stalls while riding +30 mph (x2) Post by justin_o_guy2 on 01/17/19 at 20:24:54 4th at 30 Naaah, not till at least forty. That's lugging it at thirty. Fifty, minimum, in fifth. Uphill, into the wind, heavy loads, raise the SharePoint |
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Title: Re: Stalls while riding +30 mph (x2) Post by CriticalPeach on 01/17/19 at 20:28:26 But if I stall out at that speed, it shouldn't be hard to restart the engine right? Like it would explain me stalling, but it doesn't explain why its hard to get it running again. Sharepoint? |
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Title: Re: Stalls while riding +30 mph (x2) Post by verslagen1 on 01/17/19 at 22:00:35 It's the same story as a million other newb's. Hey I was riding along and it quit and wouldn't start again for x minutes. I had a half a tank... yada yada yada. it's the petcock. |
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Title: Re: Stalls while riding +30 mph (x2) Post by CriticalPeach on 01/17/19 at 23:41:03 the only thing i am hesitant about with replacing the petcock is the vacuum line and plugging it. i have high temp silicone sealant and zipties, but i feel like i shouldn't jerry-rig this. |
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Title: Re: Stalls while riding +30 mph (x2) Post by CriticalPeach on 01/17/19 at 23:41:24 and if it was the petcock, why should it be so difficult to restart? |
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Title: Re: Stalls while riding +30 mph (x2) Post by justin_o_guy2 on 01/18/19 at 00:20:06 The Petcock doesn't pass fuel without vacuum. Unless it's on Prime. If the bowl is empty the Petcock NEEDS to be put on prime. Gotta be a reason for the Prime position. Vacuum drops as throttle opens. |
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Title: Re: Stalls while riding +30 mph (x2) Post by IslandRoad on 01/18/19 at 04:46:14 01302B362B21232E122723212A420 wrote:
Plugging the vac line is the easiest part of the job. You can get a product from an auto parts store, sometimes called 'vac cap'. It's a little rubber nipple that pushes on to the vac port on the carb. You can get a pack of them for a few dollars. They come in different sizes. If I remember correctly, it was the 4mm version that fitted snugly. I've had one on there for almost two years and it works fine. I inspect it along with my general maintenance checks. I also carry the rest of the pack in my tool kit, so if it eventually perishes, I have a replacement handy. |
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Title: Re: Stalls while riding +30 mph (x2) Post by Gary_in_NJ on 01/18/19 at 06:15:33 1C2D362B363C3E330F3A3E3C375F0 wrote:
If you were lugging it to the point of stalling it, there would be serious protesting from the engine. You would experience a lot jerking and bucking before it stalled. Engines should be rev'ed...stop babying it because...it's not a baby. |
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Title: Re: Stalls while riding +30 mph (x2) Post by ohiomoto on 01/18/19 at 06:35:41 petcock |
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Title: Re: Stalls while riding +30 mph (x2) Post by stewmills on 01/18/19 at 12:41:03 526378657872707D4174707279110 wrote:
Most likely the petcock as others have indicated. I don't have the raptor, but I have rebuilt my stock petcock diaphragm a couple of times (you can buy kits for $20) due to the same symptoms. Regarding the mileage, on average you can expect ~100 miles on a near full tank before you have to catch reserve, so if you are near the 100 mile mark when things start misbehaving you may be right there where you're starting to miss fuel because it's slipping below the level of the main supply tube. |
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Title: Re: Stalls while riding +30 mph (x2) Post by Dave on 01/20/19 at 03:57:48 I vote petcock. Yep petcock. Probably petcock. ;) |
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Title: Re: Stalls while riding +30 mph (x2) Post by batman on 01/20/19 at 12:37:52 It's apparent he was lugging the motor (shifting to early) but that would mean the throttle plate would be nearly closed ,causing the vacuum to be higher at the petcock diaphragm, but that might indicate that the diaphragm is either very stiff and not passing fuel or perforated and passing too much. Either way he needs a Raptor. |
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