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#571 | |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,685
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Quote:
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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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#572 |
Join Date: May 2024
Posts: 3
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Hey Jerry,
I am on the phone with them now. I followed the service guide you had listed and requested if they could find me a new top rod. but they have no really been helpful. Said they would get back to me but its been weeks now. Had the bike for less than 2 weeks and i cant ride it due to a top rod missing now. its been really tough here in Georgia to even find a mechanic willing to look at the bike so im having to figure everything out by myself. I love the bike, but repairs and guidance for it has been so tough. definitely disappointing. Is it possible I could pay you for virtual advisement so i can outline the issue? |
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#573 | |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,685
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Quote:
My concern is where did the rod go to? I'm sure Venom is probably trying to locate parts from American Lifan. Here's a link to the service manual that might help. https://drive.google.com/file/d/1C-W...usp=drive_link
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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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#574 |
Join Date: May 2024
Posts: 3
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@jerryhawk yeah the top rod is what i need. i actually sent venom a photo of the service manual and they still can not find that piece. I went and purchased one from TT250 but it was too large.
I literally had the 250cc for 10 days. was riding one day and when i tried to throttle the gas the bike would not move. did some digging and took the clutch cover off. oiled up the plates so they werent sticking. thats when i noticed the top rod was not there? I am not sure if I lost upon reassembly or not. either or Venom hasnt been much help and no mechanics here in Georgia are willing to service chinese bikes due to getting the parts troubles? needless to say my bike has been sitting now for almost a month. very frustrating to say the least |
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#575 | |
Join Date: Mar 2024
Location: Maine
Posts: 5
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#576 | |
Join Date: May 2024
Posts: 1
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Did VENOM or Lifan help you fix the issue with your motorcycle? I'm seriously considering getting one, but hearing about your bike sitting for a month makes me think about opting for a used Japanese brand instead |
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#577 |
Join Date: Apr 2024
Posts: 6
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After 2,800 miles, I replaced the stock chain with the RK Racing o-ring chain listed on kpx250.com. I lost 4 mph of top speed and my mpg has also decreased from all the drag of the o-ring chain. I had no idea it was that big of a drag.
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#578 |
Join Date: Sep 2021
Location: De Soto, MO
Posts: 1,932
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Are you sure the chain isn't too tight?
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2021 Lifan Xpect--sold 2022 Lifan KPX 1972 Honda CT90--The Carrot 1969 Honda CT90--The Tomahto Cheesy is the WDK (workplace drama king). Now retired. Nope, back in the saddle. Climate: The Movie https://www.youtube.com/watch?v=A24fWmNA6lM How our government really works https://www.youtube.com/watch?v=QjadCd0VRBw Question all authority.....think for yourself |
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#579 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Wow! Never heard of that! As mentioned, the tension and alignment of the wheels is right on???
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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#580 |
Join Date: Apr 2024
Posts: 6
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Regarding the two questions about the drag from the o-ring chain:
i thought it was this forum in which I read that there would be some drag with an o-ring chain compared to a non-o-ring chain, but maybe I am mistaken about which forum I read it on. In any case, I gather that it is well known that o-ring chains have more drag from the friction of the o-rings. I read that small displacement motocross racers will often use standard chains to avoid the slight performance decrease of o-ring chains. You can feel the stiffness in the o-ring chain right out of the package as you install it. It holds its shape, whereas the standard chain is as bendy as a wet noodle. I can confirm that chain slack is spot on and wheels are as aligned as I can get them. The main reason that I got the o-ring chain was that the original chain seemed to wear/stretch faster than I would like so I was having to adjust the slack often. Rumor has it that the o-ring chain will wear slower and require less frequent slack adjustment. We will see! Funny side effect: I have seen this on another motorcycle once. The KPX250 exhaust points right at the red side reflector on the license plate holder. The reflector plastic melted slightly over the course of 2,800 miles. When I put the o-ring chain on, it completely melted the reflector in less than 100 miles. I theorize this is because at highway speed with the o-ring chain, I am running WOT but getting lower RPMs. This combination somehow results in extra heat on the reflector. Maybe less cooling from a few mph lost with the o-ring chain. |
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#581 |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,602
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Yup. X-ring too. They just soak up power. The 172FMM engine in the KPR makes about 20 hp. My KTM motocross bike came with a standard chain, and it makes 50hp. No compromise.
![]() I buy standard chains now (usually Takasago RK). They are much less expensive, but good chains. I want every bit of power these little engines can deliver! The cost savings with a standard chain may even outweight the more frequent replacement in the long run. If you are more than 50% highway, a standard chain should do. Riding in mud can do real damage. Keep it clean and lubed.
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-NOS 2020 KTM 250SX (2-stroke motocross) |
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#582 |
Join Date: Aug 2022
Posts: 175
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I have just over 10,000 miles on my KPX and I am using the same ORing chain I put on at 10 miles. I've only had to adjust the chain 4 or 5 times and I've gotten just over 80 mpg when I've checked my mileage in the past. I've never ridden the bike over about 60 mph so I have no idea it I've lost any top end speed I'll never use. My rear reflector started melting right away so they all came off in the first few miles after getting the bike
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2022 Lifan KPX 250 |
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#583 |
Join Date: Apr 2024
Posts: 6
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Does anyone else experience the same problem I am with gas leaking out of the seal between the gas tank and the gas cap? My gas cap just seems to not seal and the lowest part of the joint between the cap and the tank faces forward. It is always wet with gas there when I ride with a tank that is half full or more.
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#584 | |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,685
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Quote:
__________________
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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#585 |
Join Date: Apr 2024
Posts: 6
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There is really nothing that I can see that would be adjustable, like a screw, that I could tighten to get a better seal on the gas cap. Venom arranged for me to receive a new gas cap. It leaks too, so now we suspect the tank is the problem.
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