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Shot Caller
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 Post subject: Passport Clones And Possible Interchangeable Parts
PostPosted: Tue Jan 22, 2013 12:32 pm 
Passport Clones And Possible Interchangeable Parts

So I just bought my first 1982 Honda Passport C70 it’s super rough and is going to need some hours put in to it to get it up to par. Now I would like to compile a list of possible engine swaps, interchangeable parts for all C70’s and C90’s.

If anyone would like to add to this topic please do. I think this would be very helpful to noobs and pros.

Passport/Cub Clones
2011 Sym Symba 110
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Flyscooters Fly Scout 110
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BMS 110cc Metro
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http://www.countyimports.com/inc/sdetail/41867


Engine Swaps
YX 140
Flyscooters 110cc - Direct Swap into the C70
Lifan 70cc - 125cc Semi-Auto
Lifan 140cc and higher will require manual shifter & 7/8 hand controls. Shims will needed to be made for the stock passport headset / handle bars.




Triple Tree and Forks that need no modifications
conventional forks with top & bottom yokes various small Hondas, H100, SS50, CG125 CB100 CB125 CT110 CT90 etc will fit straight on the Cub frame. -boo

Websites for Parts
Beatrice Cycle
http://www.dratv.com/

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Shot Caller
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed May 29, 2013 12:41 pm 
Honda Passport C70 'aka Cub'
Cross compatiable forks

CT90 / CT 110
CL 70 / CL 90
Early CG125
CB125
Some XL's possibly the XL70
CD50/SS50

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Needs Training Wheels
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed May 29, 2013 1:24 pm 
Any info on whats involved in a 125 lifan swap?


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Shot Caller
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed May 29, 2013 4:20 pm 
Lifan is a direct bolt in, and some wiring.

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Needs Training Wheels
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Mon Jul 08, 2013 2:18 pm 
Any pics of a Passport with the CB125 forks on it. Found a 1982 CB125 on CL parting out in my area, forks look solid. Thinking of grabbing them for the 82 Passport I'm about to mod.

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Needs Training Wheels
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Fri Jul 19, 2013 11:11 am 
Any thoughts on Honda Express forks and compatibility with the Passport? I realize the Express has a 14" front wheel, but if the axles/hubs are compatible, there appears to be ample clearance for the C70s 17" front wheel, might be tight. Now will that clearance be enough for the 17" plus the suspension travel...that's the big question. Keeping the CtoA and head angle would be nice too.

Asking because I like the idea of a more tradition telescoping fork and handle bar and a local has several Expresses he parts out.
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Donkey Puncher
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Fri Jul 19, 2013 11:15 am 
I would look at a ct 90 first
since it basically looks like a passport

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Needs Training Wheels
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed Jul 01, 2015 10:46 am 
dem0nk1d wrote:
Lifan is a direct bolt in, and some wiring.


Won't you need to make modifications to the stock foot pegs to account for the wider engine?
Also, what about the electric start options? I've seen some with the starter motor on top (like the Honda), and some where the start motor is on the bottom. Any issues with clearance on either of these options?

Also, anyone have a good source for 125 semi-automatic 4 speeds with electric starts? I've only been able to find kick-start options so far.
Also, I've heard about clearance issues with the stock pipe (which would need modifications to work with the 125 Lifan), and with the kick-starter not clearing the stock exhaust pipe.
Any confirmation on any of that?

Thanks!

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1976 Honda GL1000
1973 Yamaha TX500
1950 Yamaha YDS-1
1964 Suzuki T10
1965 Suzuki T250
1972 Honda CL450
1978 Yamaha XS650
1982 Honda Passport C70


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Donkey Puncher
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed Jul 01, 2015 12:32 pm 
even if you had to make modifactions to the foot pegs
which I didnt need to do using a lifan 125,piranha 140 on a 1970 bike

you can easily find new foot peg/centerstand/sidestand combo on ebay around $45 I think
so its not a big issue


the most important thing when getting a new replacement engine
make sure it has the stator to make power
some can come with just a way to make spark, no power and you will need to purchase the stator, flywheel and puller to swap out
not a big deal to do but I just hate those surprises when you think its just a quick swap out


one thing to keep in mind, the larger engines will be longer in length
so if you try to reuse stock exhaust you will need to make, or modify the hanger


I used tbolt to get my engines
but they are all over ebay
if your doing a passport and keeping the leg shield try to find the electric start type similar to the passport

but to be honest its super easy to kickstart them if you need to do that
less wiring to upgrade later depending on your year

also there are many parts that can vibrate loose, especially in the rear sprocket area from the extra power
do your best to take everything apart and red loctite or safety wire/cotter pin every bolt and nut

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Needs Training Wheels
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed Jul 01, 2015 1:55 pm 
Mike155cc wrote:
even if you had to make modifactions to the foot pegs
which I didnt need to do using a lifan 125,piranha 140 on a 1970 bike

you can easily find new foot peg/centerstand/sidestand combo on ebay around $45 I think
so its not a big issue


the most important thing when getting a new replacement engine
make sure it has the stator to make power
some can come with just a way to make spark, no power and you will need to purchase the stator, flywheel and puller to swap out
not a big deal to do but I just hate those surprises when you think its just a quick swap out


one thing to keep in mind, the larger engines will be longer in length
so if you try to reuse stock exhaust you will need to make, or modify the hanger


I used tbolt to get my engines
but they are all over ebay
if your doing a passport and keeping the leg shield try to find the electric start type similar to the passport

but to be honest its super easy to kickstart them if you need to do that
less wiring to upgrade later depending on your year

also there are many parts that can vibrate loose, especially in the rear sprocket area from the extra power
do your best to take everything apart and red loctite or safety wire/cotter pin every bolt and nut


Yeah, I'm taken the parts bike down to it's independant components and have swapped out the rear sprocket for a new one (with less teeth) and I've begun red loctiting everything. And torqueing to specs.
I haven't found a good electric start Lifan yet though.

Also, I'm interested in your comment about spark versus power. Shouldn't these "complete" engines come WITH the flywheel and everything?!
Also, I've noticed that some of these "complete" engines don't come with a voltage regulator/rectifier combo. Is that because (like the Passport), it relies on the battery for that?

How will I know which regulator/rectifier to purchase for my specific Lifan engine?

_________________
1976 Honda GL1000
1973 Yamaha TX500
1950 Yamaha YDS-1
1964 Suzuki T10
1965 Suzuki T250
1972 Honda CL450
1978 Yamaha XS650
1982 Honda Passport C70


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Donkey Puncher
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed Jul 01, 2015 4:07 pm 
the 140cc piranha I bought only had the inner coil ignition or whatever its called
only to make spark, no electricity as these little engines can be used on tiny dirt bikes too, which dont need any power
im sure there are others out there like that too

and dont expect everything to come with a new engine
sometimes you have to buy the intake, carb, electronics
and you will need to buy an exhaust gasket for any new engine, they never come with those

because you can use the lifan type engines on 6v systems too all depends on the rectifier you use so how would they know what your planning on doing with the engine that can fit 50 years worth of bikes out there

sometimes they may include an intake and carb which will be okay to get it running
or you can buy a better carb and get more performance out of it
just really read the description on what it comes with



do your research before buying the first thing you see


also shift pattern is something to think about too
all of the lifan I had, or had installed that did 1,n,2,3,4 and were clutch
could not kickstart in gear with clutch in

had to be in neutral, and those are hard to get into neutral
even harder on a street bike
so if you do stall it in traffic
now your scrambling to find neutral, dont touch clutch
then hopefully you can kick it started again
and 2 that ive had, new and old slipped out of gear into neutral
again this is not fun on a street bike when that happens
this is a common problem for that shift pattern



if you look for n,1,2,3,4 type shift those can start in any gear with clutch in
and dont slip out of gear

thats also the same shift pattern as the passport

now ive rode some semi auto lifan 125's and I think those all were n,1,2,3,4 and you could actually kick start those in gear too
just make sure not to give any throttle or you start to roll away





and there are some 4,3,2,n,1 shift pattern engines out there too, I think the 90cc sizes
I would just stay away from those as 99% of motorcycles out there dont use that pattern
might as well use a shift pattern you can use on other bikes too




quick ebay search
http://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=lifan+125&_sacat=0

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Needs Training Wheels
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed Jul 01, 2015 5:22 pm 
Cool. Yeah, I'm still doing my research before I purchase. I'm thinking of going batteryless, kick start only with no electric start. This means I would need to run a Sparx Capacitor as the battery eliminator I believe. It also seems that these Lifans on ebay (I followed your link), even the ones that are "kits/sets", don't come with a regulator/rectifier. I think I'll need one of those as well as my Passport doesn't have one.

I'm also interested in learning about something I read recently - that the CDI units on these Lifan 125's is "restrictive". Not sure what the guy meant, but apparently there are "better" CDI units out there for these engines. Anyone know anything about that?

Thanks!

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1973 Yamaha TX500
1950 Yamaha YDS-1
1964 Suzuki T10
1965 Suzuki T250
1972 Honda CL450
1978 Yamaha XS650
1982 Honda Passport C70


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Donkey Puncher
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed Jul 01, 2015 6:05 pm 
restrictive may of been a bad translation
may mean has a rev limit

ive used a few lifans, and never hit a rev limiter on them
so who knows
never had a tach on one but they can rev pretty high

what they need badly is a 5th gear
because at top speed they rev really high

you can run all the lights on ac power (yellow wire on rectifier)
and not need a cap

just expect them to dim at idle, and brighten when moving

but I think over time you could burn out the rectifier by not using a battery not sure if the cap can prevent that never tired one

I used a battery on my 6 volt conversion I use a tiny lead acid battery for an emergency light from home depot
been using that for years all it powers is the brake light and gauges, no signals on it
my bike uses ac power for headlight

you can also find those small lead acid batteries at home depot for 12v too around $30-45
but by then might as well use a real motorcycle battery if your bike is 12v

here its the law to have the brake and running light on the battery I believe plus I want people to see me and when im braking


dratv.com has all the parts you will need if your not sure what to get on ebay they sell oem, and china parts too
im sure its easy to find the rectifier I dont think its any super specific

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Needs Training Wheels
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed Jul 01, 2015 7:06 pm 
Rev limiter is what I meant. Thanks :D

Anyways, with the 420 chain and sprockets, there are a decent amount of options for the Passport gear ratio change to make the 4th gear more useful since they don't have a 5th gear. And honestly, going to 125 from a bike that's used to 70, I think changing the gearing to have lower rpms will still have plenty of power in 1st gear off the line even still. . . . . . right? :wink:

_________________
1976 Honda GL1000
1973 Yamaha TX500
1950 Yamaha YDS-1
1964 Suzuki T10
1965 Suzuki T250
1972 Honda CL450
1978 Yamaha XS650
1982 Honda Passport C70


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Donkey Puncher
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 Post subject: Re: Passport Clones And Possible Interchangeable Parts
PostPosted: Wed Jul 01, 2015 7:23 pm 
im not sure how many sprockets you have found for the passport
I didnt think too many exist

you can go up a tooth on the counter sprocket maybe 2
you can always remove the cover I think when you go 2 larger so the chain wont hit


I think you may hit 55 mph top speed depends on the sprockets
but the torque is what will be much nicer

I think my stock passport I can do 50 flat ground, with the +1 counter sprocket
but its not super fast up hills, it does go faster up hills then a stock ruckus
and mine is 6v points ignition so im sure if you had the 1982 model or newer with cdi it probably runs better


the semi auto lifans do shift very hard, and clunky
not sure if that smooths out over time

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