09-27-2023, 10:40 AM | #1 |
Join Date: Aug 2023
Posts: 7
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xpro saipan 200 efi ridingat 50 mph bike stops
hello all have xpro saipan 200 (same as vitacci cash 200) Riding 50 mph with engine not overheating . bike just stops . getting fuel /getting spark but timing advanced ???
changed ecu , throttle position sensor , coil good bike has only 497 miles on it ? any help much appriciated |
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09-27-2023, 11:15 AM | #2 |
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Join Date: Oct 2016
Location: Houma, La.
Posts: 11,713
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Have you done a valve adjustment yet? Does it start after cooling off?
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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09-27-2023, 05:07 PM | #3 |
Join Date: Jul 2022
Posts: 94
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Use and monitor a fuel gauge to help diagnose when it shuts down. A bad O2 sensor or Temp sensor can shut down fuel. Try unplugging each one and see if the computer compensates to a predetermined scale like a fuel injected car would. I'm eventually going to buy another used Clash 200 so I will have extra parts.
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09-28-2023, 02:24 AM | #4 |
Join Date: Aug 2023
Posts: 7
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Hi jerry thanks for help . It has less than 500 miles and wont start at all .. Clash has fuel .thank you also
It definately has timing advanced .It has spark but there is no adjustment for timing? changed ecu and throttle position sensor ? This has professional mechanics puzzled lolol |
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09-29-2023, 12:21 AM | #6 |
Join Date: Aug 2023
Posts: 7
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hi mud flap no valve adjustment but only 497 miles on bike . and not acting like valve out of adjustment . it went from running great to engine stopping and not restarting in one fell swoop .
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09-29-2023, 05:09 AM | #7 |
Join Date: Sep 2014
Posts: 1,929
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An engine needs air, fuel, compression, spark at the right time. You say it has spark and fuel. Is the spark plug wet or dry. What is the color of the plug? Good plug like NGK or questionable brand like Torch? Air filter clogged or something blocking air flow? Will it run on starting fluid? My advice is to check the valves or check compression.
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09-29-2023, 07:52 AM | #8 |
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Join Date: Oct 2016
Location: Houma, La.
Posts: 11,713
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If you never checked or adjusted the valves, that would be the first thing i would do. Most of these engines come with the valves set with little or no gap. Once the engine warms up the clearance goes away and valves don't fully seat. This will cause lost of compression and will make the engine hard to start or die until it cools off.
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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09-29-2023, 08:20 AM | #9 |
Join Date: Aug 2023
Posts: 7
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Question .... if you install a new ecu on this bike do you have to do a ecu reset ? i knew i should not get efi gy6. should have stayed with traditional carb set up
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09-29-2023, 07:33 PM | #10 |
Join Date: Jul 2022
Posts: 94
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My valves had to be reset at under 1000 miles. They were very loose and started tapping. Never replace an ECU before checking all the basics first unless it's cheap and easy to get. I don't think this one is. If you have spark and possibly fuel do what Mudflap said.
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10-03-2023, 12:19 AM | #11 |
Join Date: Aug 2023
Posts: 7
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its only 68$ the entire throttle body is only 85$. ok Valve adjustment next
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10-03-2023, 07:29 AM | #12 |
Join Date: Sep 2014
Posts: 1,929
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It seems that .004" intake and .005" exhaust is commonly recommended for GY6 150 engines but I found that to be a bit loud. .06mm/.08mm (.00236"/.00315") is what is printed on one of the plates on the bike. That's what I use now and it's pretty quiet.
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