08-07-2021, 09:07 PM | #16 |
Join Date: Aug 2020
Location: Australia
Posts: 1,408
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compression, spark, fuel...
Will assume compression is fine, Is there a smell of raw fuel when you crank it over? if so likely a spark issue. if you squirt some fuel down the carb and it pops off..then likely a fuel delivery issue. |
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08-07-2021, 09:19 PM | #17 | |
Join Date: Feb 2021
Posts: 994
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08-08-2021, 12:17 AM | #18 |
Join Date: Oct 2016
Posts: 405
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What comes to mind, first, if you have spark and your valves are adjusted then it boils down to fuel. You either have a bad fuel pump, clogged injector or you are running with your petcock set to run-not reserve-and you are running out of gas. Now that I think about it...does a DLX even have a petcock? Are you getting power to the fuel pump?
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08-08-2021, 09:02 AM | #19 | |
Join Date: Jun 2021
Posts: 80
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Quote:
Is the check engine light on? |
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08-08-2021, 10:24 AM | #20 |
Join Date: Oct 2020
Location: Flower Mound Texas
Posts: 904
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I'm sorry I dont have anything helpful, but after reading so many similar posts, I'm glad I bought a carbureted model. I hope the bugs get worked out in the near future.
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2021 Tao Tbr7 - "Lucille" Mods so far- Brozz swingarm, 21" front rim (Bridgestone Tw302 rear/Dunlop D606 front tires), Digital gauge cluster, pz30b pumper carb, after market hand guards, aftermarket brake and clutch levers, round fold away mirrors, Fly handlebars shortened slightly, 13t front sprocket 2009 Q-link Legacy 250 1982 Suzuki GS1100ES - "Jolene" |
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08-08-2021, 10:26 AM | #21 |
Join Date: Sep 2018
Location: Iowa
Posts: 34
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Check engine light isn't on.
When I turn on the key, and have the kill switch set to run, I can hear the fuel pump cycle. If the kill switch is engaged to kill, the pump doesn't cycle when I turn the key to on. When I adjusted the valves, I cranked the engine so that the line by the "T" that looked like a "1" was lined up with the line on the case. Is it possible for this to be on the intake stroke? How can I tell if I was on the compression stroke? No smell of raw fuel. No carb since it's EFI. I tried to locate a petcock (I wondered if I was on a reserve or even set to "off") but I couldn't locate one. |
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08-08-2021, 10:35 AM | #22 |
Join Date: May 2021
Posts: 355
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Check to see if the sensor on your exhaust pipe is plugged in properly. Then go to your intake and make sure the plug on the injector is seated.
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08-08-2021, 10:36 AM | #23 |
Join Date: May 2021
Posts: 355
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Oh and guys there is no petcock on the Hawk DLX, well at least on mine.
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08-08-2021, 10:39 AM | #24 |
Join Date: Dec 2018
Location: PNW
Posts: 983
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Turn the engine over watching the action of the valves as you come to TDC or T mark, the compression stroke will end at T with the valves seated the tappets completely loose (you can feel and wiggle them up and down. Turn it again and as you come off TDC the exhaust valve will start to open after the compression (firing) stroke. Keep turning it over to TDC until you see the relationship. Exhaust, then intake, then compression. After the intake valve opens to let in gas fuel it compresses and fires.
I don't know much about EFI or the DLX but I will speculate to help. I would disconnect the throttle body air intake hose and dribble some gas or starting fluid in the the throttle body intake and try to start it. See if it will pop at least. You might be able to see if the injector is spraying or take the spark plug out see if gaseous in the cylinder (if injector is working should be some gas in the cylinder if it is trying to start but I bet not because you would have gotten a pop or something) If it is sparking then it has to be a fuel delivery issue which could be caused by an electronic issue. Be deliberate in troubleshooting, eliminate things logically. Check all the wiring connectors for disconnection or damage. Previously said spark, fuel, air makes it go. Last edited by China Rider 27; 08-08-2021 at 11:35 AM. |
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08-08-2021, 10:43 AM | #25 |
Join Date: Nov 2017
Location: Marseille, France -> Conakry, Guinea
Posts: 1,481
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I wouldn't worry about the electrical components yet... Yes, I'm fairly certain you adjusted the valves 360° out. Put it on 'T', check to see if it's the same looseness, and then put it through another rotation to 'T' again. Whichever cycle where the intake valve is looser is the one you should be adjusting at.
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08-08-2021, 11:28 AM | #26 |
Join Date: Oct 2016
Posts: 405
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Ditto what franque said. Don't forget when you adjust the valves you manually turn the engine over with a ratchet, through the inspection plug, counter-clockwise and watch for the Intake valve to go up and down...and then very slowly turn counter-clockwise to the "T". THEN adjust your valves. Works every time. Also, it's much easier to do this with your spark-plug removed.
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08-08-2021, 11:49 AM | #27 | |
Join Date: May 2021
Posts: 355
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08-08-2021, 02:09 PM | #28 | |
Join Date: Oct 2016
Posts: 405
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08-08-2021, 07:09 PM | #29 |
Join Date: Nov 2017
Location: Marseille, France -> Conakry, Guinea
Posts: 1,481
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I would advise you to do things simply, and start with the valves.
If you're new to anything diagnostic, start with the simplest things, those which are easiest to test/verify, that being 1. Sparkplug, throw a new one in it, then verify that you have spark 2. Valves, verify what I said first with your clearances, 3. Air - verify that the air cleaner is clean, and that there are no air leaks, and 4. fuel - verify that the injector is spraying fuel. If all of those things are good, then we can start looking into other potential problems. For everyone else "contributing" their ideas, please wait for confirmation of the simple things before throwing out other ideas. There are quite the deluge of ideas being put forth, and it is very easy to confuse someone with the flood of ideas coming about. Until the basics are verified, we should refrain from muddling up the thread with 100s of disparate ideas, it's too much. This needs to be approached from a systematic process, not a bunch of random guesses. OP: If you have any questions, particularly the process of doing any of what I've described above, feel free to PM me, I'm happy to help. I'm a professional motorcycle mechanic, and I'm available if you need me. |
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