TrailRyd3r
Member
Man, I am so excited. My dad and I are getting 2 new 140cc motors in today. Both are 4 speed manuals. I will be putting mine on friday night. Just had to share!
140cc Motor here today!
- Thread starter TrailRyd3r
- Start date
TrailRyd3r
Member
sure will! pics and video coming soon...
CarPhreakD
Member
There must be few things as exciting and satisfying as finding a new engine in the mail =D
TrailRyd3r
Member
this is a very nice motor, cant wait to see how fast it is compared to my 110cc.
I'll be watching for your ride report. I would think you will need to gear up the final drive for more top speed. No use reving the guts out of this obviously powerful engine.
Does this engine have the oil line fittings for a cooler on the right hand case? I have recently heard these are blocked in some engines and either a cooler or a hose between the fittings must be installed for the lubrication system to function. I looked at some replacement engines and sure enough, the fittings were there. You probably know all about this but better safe than sorry.
Tom, Columbus, Ohio
Does this engine have the oil line fittings for a cooler on the right hand case? I have recently heard these are blocked in some engines and either a cooler or a hose between the fittings must be installed for the lubrication system to function. I looked at some replacement engines and sure enough, the fittings were there. You probably know all about this but better safe than sorry.
Tom, Columbus, Ohio
TrailRyd3r
Member
The sprocket combo will be 17/35. This should be good enough for some speed without reving too much I think.
mmm, dont know about the oil line fittings, I will have to look when I get home tonight, you got me wondering now, lol.
mmm, dont know about the oil line fittings, I will have to look when I get home tonight, you got me wondering now, lol.
Biggest I would go with is a 16 toothed.If the chain ever broke that close to the case it can bust a hole in it.
Long Crapper
Member
Who did you buy it from and how much was it?this is a very nice motor, cant wait to see how fast it is compared to my 110cc.
TrailRyd3r
Member
Biggest I would go with is a 16 toothed.If the chain ever broke that close to the case it can bust a hole in it.
Too late 17 tooth is already on.
TrailRyd3r
Member
Well my dad and started out today and we got it running but not complete. It was more of a chore than we thought it would be...
I tore off the 110 friday night, easy!
Here is where we ran into some trouble. The motor was not going back far enough to line up the bolt holes for the motor, so we had to grind off some of the rear swing arm in the inside, then it bolted right in.
Here you can see the stock 14 compared to my 17.
Wiring is different on this motor too, since my yellow bike is actually a Redcat, not one from Hooper imports the the ends were all different, so we had cut and splice and match up the right color wires.
Here you can see the wires coming from the new 140cc
Here is my wires on my bike
Carb hooked up chain on, getting closer
I tore off the 110 friday night, easy!
Here is where we ran into some trouble. The motor was not going back far enough to line up the bolt holes for the motor, so we had to grind off some of the rear swing arm in the inside, then it bolted right in.
Here you can see the stock 14 compared to my 17.
Wiring is different on this motor too, since my yellow bike is actually a Redcat, not one from Hooper imports the the ends were all different, so we had cut and splice and match up the right color wires.
Here you can see the wires coming from the new 140cc
Here is my wires on my bike
Carb hooked up chain on, getting closer
TrailRyd3r
Member
My temporary pipe, new one here in a week or two
We did get it fired and it sounds great, only thing not working is the turn signals, so thats pretty good.
I will take a video tomm once I get it going.
We bought it from
Hooper Imports Experts on Chinese Motorcycles and Parts
We did get it fired and it sounds great, only thing not working is the turn signals, so thats pretty good.
I will take a video tomm once I get it going.
We bought it from
Hooper Imports Experts on Chinese Motorcycles and Parts
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oldschool70
New Member
I've doing research on those motors an Ive been reading lots about oil problems in the heads. The oil coolers that are out for are out to help the problem. But All the of lifan 138cc motors I dont see the lower case bolts for the oil passage that I keep hearing about. Whats your input on that?
TrailRyd3r
Member
Man, we worked on it again this weekend, my wiring in my bike is just so different nothing would charge or wires would not match up. So, we tore out my entire harness and put in a Hooper harness and hooked everything up. We got it started, now I have to work on getting all the other wires hooked, like light switches, turn signals, and everything in the light bucket, I will be riding that thing this weekend hopefully...
Since you should have a lot of years ahead of you tinkering with bikes, do yourself a big favor and learn the basics of bike wiring. Even the most complex wiring setup on these little bikes is pretty simple. When you break it down by system (CDI, regulator, lighting & ignition switch)the process of elmination will get you 80% of the way there.
Things like ground leads, regulator connections, neutral light lead, lighting coil positive lead, primary coil lead and kill switch lead are easy to figure out. With those sorted, the only specific information that's indispensable are schematics for the CDI & ignition switch. In other words, it's only really confusing until you start tracing individual leads, armed with a schematic. Once you can recognize what all wiring setups have in common, you'll find that there's not much left to trace and, when you're only talking about 3 or 4 leads, the process of elimination oftentimes becomes a reliable helper.
For example, all of your lighting should be powered directly from the battery; that eliminates any switching issues, including turn signals. All grounds, except for those controlled by the ignition switch are part of the same common ground bus. Regulator connections are pretty consistent, even with Chinese stuff. That just leaves your CDI, coil primary and ignition switch leads to figure out. Coil primary and kill leads are usually self-explanatory (and the neutral light lead is a no-brainer). Armed with the aforementioned schematics, that doesn't leave much to sort through does it? Kinda de-mystifies what initially seems overwhelmingly complex and, once you learn the basics, you won't sweat the wiring mods the next time you change engines.
Things like ground leads, regulator connections, neutral light lead, lighting coil positive lead, primary coil lead and kill switch lead are easy to figure out. With those sorted, the only specific information that's indispensable are schematics for the CDI & ignition switch. In other words, it's only really confusing until you start tracing individual leads, armed with a schematic. Once you can recognize what all wiring setups have in common, you'll find that there's not much left to trace and, when you're only talking about 3 or 4 leads, the process of elimination oftentimes becomes a reliable helper.
For example, all of your lighting should be powered directly from the battery; that eliminates any switching issues, including turn signals. All grounds, except for those controlled by the ignition switch are part of the same common ground bus. Regulator connections are pretty consistent, even with Chinese stuff. That just leaves your CDI, coil primary and ignition switch leads to figure out. Coil primary and kill leads are usually self-explanatory (and the neutral light lead is a no-brainer). Armed with the aforementioned schematics, that doesn't leave much to sort through does it? Kinda de-mystifies what initially seems overwhelmingly complex and, once you learn the basics, you won't sweat the wiring mods the next time you change engines.
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