My ATC 70 build 138cc lifan *UPDATE W/ PICTURES!

[shortbus]

I have decided to go all out on my atc 70. This is what i got so far but feel free to add anything you will think i will be needing or missing.

-lifan 138 manual, w/pirahna oil cooler
-crf50 tank
-crf50 shrouds
-pit bike exhaust
-tall bars with extended cables
-Chain & front and rear sprokets


I will get pictures soon as im tearing the bike down now. Any suggestions or tips for a newbie, this will be my first build on a trike or attempt should i say.

[shortbus]

Iam also going to have a complete running motor, and tank off the bike for sale here soon.

[Tri-ZNate]

sterdyproducts.com (usually takes a week before they ship anything)
dratv.com
hondaatc70.com (great group to talk to about modding 70s)

I'm sure you know of them but they have everything you'll need. Look into wheels spacers to make it easier to kick and be prepared to grind a tiny amount of metal on the frame to bolt it in (I have a gpx 140). Other than that simply open up your wallet. I'm really interested to see the crf body parts on the 70

I'm going to run 15/33 ratio so I'll let you know what happens when I ride it

[vartiak15]

where did you get the motor and how much was it

[shortbus]

sterdyproducts.com (usually takes a week before they ship anything)
dratv.com
hondaatc70.com (great group to talk to about modding 70s)

I'm sure you know of them but they have everything you'll need. Look into wheels spacers to make it easier to kick and be prepared to grind a tiny amount of metal on the frame to bolt it in (I have a gpx 140). Other than that simply open up your wallet. I'm really interested to see the crf body parts on the 70

I'm going to run 15/33 ratio so I'll let you know what happens when I ride it

Thanks for the tips! I have a grinder so the frame shouldnt be a problem. Iam also hoping the body panels turn out good, iam not expecting this to be some flashy build just something that i can take out and ride so it wont be that pretty!


where did you get the motor and how much was it

I got it off ebay, everything included it was about 300$ shipped.

[Mosh]

Here is a link to mine I did last fall.
I still amd working on cosmetics, but has some good info and ideas if you want them.
I too ran the CRF 50 Tank. I need to get up new pics with the shrouds mounted.

http://www.3wheelerworld.com/showthread.php?118372-Project-quot-SUSPECT-70-quot-With-125-engine.-Update.-9-23-10&highlight=

[shortbus]

Here is a link to mine I did last fall.
I still amd working on cosmetics, but has some good info and ideas if you want them.
I too ran the CRF 50 Tank. I need to get up new pics with the shrouds mounted.

http://www.3wheelerworld.com/showthread.php?118372-Project-quot-SUSPECT-70-quot-With-125-engine.-Update.-9-23-10&highlight=

Nice yes i would love to see how you mounted your tank and shrouds and how it looks.

[shortbus]

Will be getting pictures of the tear down tomorrow most likely, and parts should be here this week.

[shortbus]

http://img163.imageshack.us/img163/8289/001copyi.jpg (http://img163.imageshack.us/i/001copyi.jpg/)


http://img560.imageshack.us/img560/4345/002copy.jpg (http://img560.imageshack.us/i/002copy.jpg/)


http://img163.imageshack.us/img163/2979/003copy3.jpg (http://img163.imageshack.us/i/003copy3.jpg/)


http://img35.imageshack.us/img35/1784/004copy3.jpg (http://img35.imageshack.us/i/004copy3.jpg/)


http://img200.imageshack.us/img200/7052/005copyh.jpg (http://img200.imageshack.us/i/005copyh.jpg/)


http://img593.imageshack.us/img593/5428/006xi.jpg (http://img593.imageshack.us/i/006xi.jpg/)


http://img196.imageshack.us/img196/1245/007copyvo.jpg (http://img196.imageshack.us/i/007copyvo.jpg/)


Well there it is, iam actually thinking of cutting down the cr80 seat and making it work somehow when my crf50 tank gets here but we will see. If not how exactly does the seat pan and foam attach to each other once a seat cover is put on? Any other tips and suggestions would be great thanks!

[86trizinger]

Gonna have to modify your foot pegs or get different ones since the engine is wider.

[shortbus]

Gonna have to modify your foot pegs or get different ones since the engine is wider.

Yea im gonna order pitbike pegs i guess, that would be the trike you sold me LOL! Any other tips you can give me!

[KASEY]

pit bike pegs have a different offset,, be careful,, you will end up with your pegs 2 inches from the fenders,,

[shortbus]

pit bike pegs have a different offset,, be careful,, you will end up with your pegs 2 inches from the fenders,,

Thanks kasey, any idea on a alternative i could use? I don't really have access to a lot of bad ass tools so fabrication is a little out of the question, anything i can buy?

[86trizinger]

I am working on mine this weekend but I am sure someone will answer before that.

[shortbus]

I am working on mine this weekend but I am sure someone will answer before that.

Pmed you!!!!

[shortbus]

Received some parts today, and also started some sanding on the frame and forks.

[biggyb12]

Gonna have to modify your foot pegs or get different ones since the engine is wider.

I've used 2 different lifan motors in mine never had a problem with the stock pegs engine isn't any wider than a stock 70

[shortbus]

I've used 2 different lifan motors in mine never had a problem with the stock pegs engine isn't any wider than a stock 70

I will have to measure everything and see how they work then, thanks for the info!

[atc350xer]

I've used 2 different lifan motors in mine never had a problem with the stock pegs engine isn't any wider than a stock 70

On the Lifan I just bought, there was an engine casting that prevented the stock 70 pegs from being drawn up all the way. I could have used spacers/washers, but I just redrilled a set of 90 pegs.

[Tri-ZNate]

Thanks kasey, any idea on a alternative i could use?

My $.02, http://hondaatc70.com/Boltonrearbrake.aspx scroll down to footpegs. I installed mine the other day and they are awesome. Or you can always make your own. I figured with the amount of money in my 70 that an $80 set of pegs was no big deal.

If you'd like a pic of them mounted up I'd be happy to supply it.

[shortbus]

My $.02, http://hondaatc70.com/Boltonrearbrake.aspx scroll down to footpegs. I installed mine the other day and they are awesome. Or you can always make your own. I figured with the amount of money in my 70 that an $80 set of pegs was no big deal.

If you'd like a pic of them mounted up I'd be happy to supply it.

Yea with the amount of money i have already sunk into this thing i might have to order some, i would like to see it on your trike installed.

[max]

My $.02, http://hondaatc70.com/Boltonrearbrake.aspx scroll down to footpegs. I installed mine the other day and they are awesome. Or you can always make your own. I figured with the amount of money in my 70 that an $80 set of pegs was no big deal.

If you'd like a pic of them mounted up I'd be happy to supply it.

Dang Triznate. Thanks for the advice on this site. Ive never seen it. They definately have some real cool stuff. Those petcock kits are super cool. Im gonna be ordering up a couple. Maybe some foot pegs aswell. Show us some pics!!

Thanks again for sharing man.

[shortbus]

Yea thanks for sharing nate, alot of good products and info there!

[Tri-ZNate]

I'll grab some pics in the morning. They sit like 2" further forward than OEM and you ALMOST dont bang your knees with OEM bars

[shortbus]

I'll grab some pics in the morning. They sit like 2" further forward than OEM and you ALMOST dont bang your knees with OEM bars

Thanks!! And also if you could snap a picture of how you have your intake setup that would be great.

[Tri-ZNate]

Here ya go. All I did with the intake was bolt it on. The only problem I have is the choke hits the tank if you try to use it, thus why people stretch these things

[AutoXer]

Wow TriZnate that thing is looking great!!!

[86trizinger]

Is that the intake that came with the engine? Mine hits the tank on my 125.

[shortbus]

Damn nate! Sweet bike!! Thanks for the pictures.

[Tri-ZNate]

Is that the intake that came with the engine? Mine hits the tank on my 125.

yep came with it. Like I said on my 70 with the fiberglass tank everything clears. IDK if the metal vs fiberglass are different underneath, like with different bends, but that is my experience

And thanks guys. Handlebars and controls should be by tuesday maybe wednesday and I'm ordering the seat foam tomorrow. Nothing like waiting till the last minute :D

[shortbus]

Well looks great nate!! Iam still waiting on a bunch of stuff for mine including the motor, any idea on a good place to mount the oil cooler?

[86trizinger]

I am stuck on the same thing on my Second one.. My oil cooler is a bit large for under the tank.. I was thinking where the front Honda plate goes but the lines want to crimp when you turn the bars.

[shortbus]

I am stuck on the same thing on my Second one.. My oil cooler is a bit large for under the tank.. I was thinking where the front Honda plate goes but the lines want to crimp when you turn the bars.

Yea i was actually looking at videos on youtube of the flat track guys, and some of them had theirs mounted where the front honda plate goes.

[shortbus]

Made a small amount of progress today not much, this bike will be a rider so the spray bomb aint perfect!

http://img195.imageshack.us/img195/5193/001copy3.jpg (http://img195.imageshack.us/i/001copy3.jpg/)


http://http://img190.imageshack.us/img190/8291/002copy4.jpg U


http://img7.imageshack.us/img7/4708/003copy5.jpg (http://img7.imageshack.us/i/003copy5.jpg/)

[86trizinger]

I think maybe you should have covered up the rest of that frame some.

[shortbus]

I think maybe you should have covered up the rest of that frame some.

Yea i realized that after i started spraying, iam painting the frame to, so the little over spray that got on it will be sanded off and painted over.

[86trizinger]

I did a test fire tonight on my 70 and it sounds great. I am running a built up GPX 125 with big valve head, tb300 cam and high compression piston. It should give my Piranha 140 a run for its money when it's all together. Still need to find a place for the oil cooler though. For now I just looped the hose to bypass for now until I figure out where I want it.

Carb float is sticking so I have to pull it off to fix it Monday night. I am using something else besides a 70 tank now and really like how it doesn't look like most other 70's. I will post some pics up by the end of the week. Maybe even a test drive video.

[shortbus]

I did a test fire tonight on my 70 and it sounds great. I am running a built up GPX 125 with big valve head, tb300 cam and high compression piston. It should give my Piranha 140 a run for its money when it's all together. Still need to find a place for the oil cooler though. For now I just looped the hose to bypass for now until I figure out where I want it.

Carb float is sticking so I have to pull it off to fix it Monday night. I am using something else besides a 70 tank now and really like how it doesn't look like most other 70's. I will post some pics up by the end of the week. Maybe even a test drive video.

Awesome man, looking forward to some pictures, iam going to try out the crf50 tank and see how that works out for me.

[Tri-ZNate]

Well looks great nate!! Iam still waiting on a bunch of stuff for mine including the motor, any idea on a good place to mount the oil cooler?

Not really :lol:. For the time being I'm not running a cooler. The only thing I could figure is 2 L brackets bolted just infrontof the tank and let the cooler freeball it. When I test fitted on the front end it seemed like no matter what the cooler lines would be hitting the frame or the mounts would be covered up.

[shortbus]

Not really :lol:. For the time being I'm not running a cooler. The only thing I could figure is 2 L brackets bolted just infrontof the tank and let the cooler freeball it. When I test fitted on the front end it seemed like no matter what the cooler lines would be hitting the frame or the mounts would be covered up.

Grrr, well when my motor kids here i will start mocking and measuring stuff up and let you know what i come up with.

[shortbus]

Got the front forks cleared, now working on sanding the frame, Coming along a piece at a time!

[bcredneck]

you should put the oil cooler were the number plate gose and put a head light cover over it like a 81 yz125
http://p1.bikepics.com/pics/2009/12/13/bikepics-1852943-full.jpg

[86trizinger]

You could have bought my ATC with the 140 already in it for then less then what you have in it so far. It was ready to ride before I started to pull it apart to build the 125. I just got the frame for the full suspension 70 out of storage so that is next. The forks are already done for it.

[shortbus]

You could have bought my ATC with the 140 already in it for then less then what you have in it so far. It was ready to ride before I started to pull it apart to build the 125. I just got the frame for the full suspension 70 out of storage so that is next. The forks are already done for it.

Pretty much, the 70+ the motor i bought is what you were asking for the 140, i should have just bought that! Gives me something to say i built though, and learn more about them. Iam actually picking up another 70 for 100, cant pass it up.

[shortbus]

What size front tire is everyone using on their 70? Same as the rear, 16x8x7?

[86trizinger]

Yes same as the rear. If your using the stock length frame with the 140 I don't think you can go much bigger.

[shortbus]

Yes same as the rear. If your using the stock length frame with the 140 I don't think you can go much bigger.

Ok just wondering because i got a new front wheel powder coated red.

[shortbus]

Motor has arrived!!!

[shortbus]

http://img232.imageshack.us/img232/6336/001copy7.jpg (http://img232.imageshack.us/i/001copy7.jpg/)

Everything has arrived but my seat cover, alot of other parts not pictured. I am finishing painting tomorrow and should be able to start the rest thing weekend!

[Tri-ZNate]

When you get it all together and ride it, you'll kick yourself for not doing it sooner. Cant wait for more pics

[shortbus]

When you get it all together and ride it, you'll kick yourself for not doing it sooner. Cant wait for more pics

Im like a little kid in a candy store right now! Check out my parts room!!!



http://img34.imageshack.us/img34/7166/0052u.jpg (http://img34.imageshack.us/i/0052u.jpg/)

[CRAZY70MAN]

Im like a little kid in a candy store right now! Check out my parts room!!!



http://img34.imageshack.us/img34/7166/0052u.jpg (http://img34.imageshack.us/i/0052u.jpg/) I know how ya feel. I remember when my nitro yx150 came to the front door..http://i388.photobucket.com/albums/oo321/andyatc70/th_Picture614.jpg (http://s388.photobucket.com/albums/oo321/andyatc70/?action=view&current=Picture614.jpg) I tore into that box so quick!! I wanted to cram it in the 70 that night :lol::lol: You will never regret this build, trust me. They are a whole handful of fun and a little extra danger all mixed together..........good luck, can't wait to see er' finished.

[shortbus]

Thanks alot man! I cannot wait, might be take a little longer then i expected to get it all button'd up but it will be well worth it so that its done right!

[shortbus]

Making some progress on the build, still waiting on the wheels from the powder coating and a few more things, almost there!

http://img577.imageshack.us/img577/6640/003copy9.jpg (http://img577.imageshack.us/i/003copy9.jpg/)


[IMG]http://img39.imageshack.us/img39/8310/002copy6.jpg (http://img39.imageshack.us/i/002copy6.jpg/)


http://img254.imageshack.us/img254/4263/001copy10.jpg (http://img254.imageshack.us/i/001copy10.jpg/)

[hoosierlogger]

Any updates on this yet? I just picked up a 70 and am planning on something fun like this.

[motoman1012002]

looking good like the differnt tank

[bigworm626]

Nice build so far! looking good.

[chuckiedog04]

any progress?