I have a honda 70 frame that i want to put a bigger motor on, And I need help

[spookydoggg]

I want to put a bigger motor onto a honda 70 frame i have but i don't know what size motor i should put onto it and weather or not to just swap out the motor or the transmission also. there is a few things i need help with, please reply.

[my1423]

The pit bike clones most all bolt up to the honda 70 frames.
They sell conversion kits.
Manifolds and starters are the issues.

[NeverLift]

I put an SSR125 pit bike motor in mine. Motor mounts are the same, took about 1/2 hour to do the whole swap. Kick starter hits the rear fender so I just bump start it. It tops out at 45 MPH and I weigh 250lbs. this thing is an absolute riot. Every trike nut should own one.

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[barnett468]

“Spookydoggg” joined 6 – 4 -2013. New topics posted approx 10



I am new and am looking for friends


i am looking for people to just talk about 3 wheelers and share stories and picture.


I am also looking for people to help me out with information on some of my projects!


Add me as a friend if you want


I need people to help me!


I want to meet some more people around this state and even every other state


send me a message or friend request, It will be worth it with the bikes i have!!!


I am I am a newer member and wanting some friends, anybody from around utah? Or anywhere?







I "Four wheelers are like tampons... every pussy needs one!" -Spookydoggg


I have a couple quads, you calling me a meow???


I love my trikes, but I also have a fascination with four wheelers. Can't beat a four wheeler for mudding, and hauling !


Right now i like my quad more only cause its running.


We don't like ignorance toward our breed, we shouldn't show ignorance to others.


sound like wise words to me.







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never mind







i have a bulltace dirtbike. does anybody know what its worth?


I dont have any pics. but i could go take some if you really want.


Hello We need WAY more info AND photos as already suggested to help with a value, also a VIN located on the steering head. For the photo, simply put them on Flickr etc., or a video on youtube.com and post the link to it in your reply. Would love to see it!

Models were

1. Metralla = street
2. Alpina = enduro
3. Pursang = MX
4. Astro = TT
5. Sherpa = Trials


Look at the list below and see which one it looks most like.

COOL PHOTOS OF VARIOUS BULTACO MODELS.

http://www.google.com/imgres?imgurl=http://classic-motorbikes.net/images/gallery/1971_bultaco_sherpa.jpg&imgrefurl=http://classic-motorbikes.net/gallery~bultaco-classic-motorcycles&h=600&w=800&sz=133&tbnid=Zv4q8pQXOSXgPM:&tbnh=90&tbnw=120&prev=/search%3Fq%3Dbultaco%2Bsherpa%26tbm%3Disch%26tbo%3 Du&zoom=1&q=bultaco+sherpa&usg=__rarGr41kO6ljB-WRx1D80hnnc8o=&sa=X&ei=dfWuUevHDoO69gThqoHQBg&ved=0CCMQ9QEwAg


I really like your bike. Nice job on that.


Hello So you like a bike someone posted, just curious are you no longer interested in info since you didn't post anything anyone asked for?


barnett468: I am interested? its an open discussion? are you stupid?

Apparently so for replying to an extremely VAGUE question written by someone whom has now proven themselves to be seriously mentally challenged.

I also don't see how making comments like these to someone that simply tried to help you will get you the new friends you are so pathetically,desperately begging for in your comments above.

Don’t plan on being here long making comments like that especially as a NEWBIE and to someone you don’t know the first thing about. The next person you do it to might be one of the sites moderators.







i have a bulltace dirtbike. does anybody know what its worth?

I suggest in the future that if you are going to TRY to insult someone’s intelligence that you at LEAST try to PRETEND you are more intelligent than the person you are ATTEMPTING to insult. One of the ways to do this is to simply spell 5th GRADE level words CORRECTLY, it’s “Bultaco” not “bultace” and “dirtbike” is actually two separate words spelled “dirt bike”. Since the “o” and the “c” are a LONG distance from each other on the keyboard your mistake is OBVIOUSLY a spelling mistake and not a typo. The only problem with this suggestion is that one would need to be intelligent enough to know that the word they are ATTEMPTING to spell is being spelled incorrectly by them. It’s CLEAR in this case that you are NOT!

Although there are several others here that don’t spell well, this is NOT addressed to them, simply because not everyone can spell well but most importantly because they are not attacking me without just cause like you are.

Continue to ATTEMPT to insult myself and others here as you already have. As far as I’m concerned your negative comments are as irrelevant and insignificant as you are.

I suggest you find someone with an intelligence level greater than yours like maybe a 4th or 5th grader and have them read understand and then explain the above comments to you, since you have already CLEARLY exhibited an inability to do so yourself.

[jb2wheels]

If I read your question right - your asking:
"weather or not to just swap out the motor or the transmission also" = should I big bore the ATC70 engine I have or swap the whole thing out? Since the engine and transmission are one piece.

I'd go with a complete Chinese clone engine swap since I've done it but I have no experience with ATC/TRX 70 big bores. I've heard and read a lot of good things about the 88cc kits, but have not used one myself.

I put a Chinese 125cc engine in my TRX 70. It has electric start and reverse and runs great other than a lot of cam chain noise.
A stock 70 engine is really working to haul me around (I weigh probably 100lbs more than an ATC70). The 125 in my potty quad (TRX70) rips. And powers good lights. And goes backwards which is a riot when your're incapacitated and riding it around the campground at 1AM. I've heard anyway. Just sayin'...

The Chinese clone engines bolt into the frames with no mods. Chains line up and everything. You could have carb/tank interference issues to work out. You have to do some wiring but if you're not using e-start the wiring is easy. E-start adds some complications. More wiring and a battery. Totally worth it though. I used to say e-start was for pus... er wimps but I guess I'm a wimp now.

If you go with an e-start engine, get one with the start mounted below the cylinder, not above. If the starter is above the cylinder, you have no room for the carb. My TRX had room but an ATC does not.
I made a battery tray and mounted the battery to the rear skid plate - tucked up inside the frame. Not my idea - I copied others (like FlyingW).

I bought a ragged out Chinese ATV for $200 to get the engine. I probably overpaid even at that.

Here's a couple of pics of my swap:
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[TxPowderCoater]

I put an SSR125 pit bike motor in mine. Motor mounts are the same, took about 1/2 hour to do the whole swap. Kick starter hits the rear fender so I just bump start it. It tops out at 45 MPH and I weigh 250lbs. this thing is an absolute riot. Every trike nut should own one.

talked me into it.
I have an 81 70 and I also have a 110 motor just begging for a new home. I think yours will get me to fix mine :-)

[Flyingw]

Mine has a Loncin 110 clutched 4 speed with estart. It is an absolute riot to ride. As JB said, my battery is stuffed up in the frame. Nice clean look but a drag when I have to take the battery out for anything.

[jb2wheels]

Nice clean look but a drag when I have to take the battery out for anything.

Great JIm - you "said" it - now one of us will have to pull a batteyr out for somehting.

[Flyingw]

It wont be me. I just put a battery in it so guess what? Its you baby!!!!!!! hahahahahahahaha

[NeverLift]

talked me into it.
I have an 81 70 and I also have a 110 motor just begging for a new home. I think yours will get me to fix mine :-)

Through some tall bars on it. Makes it way nicer to ride than with the stockers.

[fastatc70]

I have a couple of atc70s with china motors. I have a pic of my first build. This is a pic of the mock up, so the seat isn't there.171140

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I have a zs155 ho with a big bore kit for a grand total of 184cc. Tb head /w auto decompression cam. Factory pull start converted to cdi and new motor. 28mm carb and a 1.5 exhaust system

[fastatc70]

This pic was taken before I started the frame stretch. Right now I have everything striped down and I will be painting the frame some time this week.

I did run the atc on a dyno befor I disassembled, 17hp and a max rpm of 9600 rpm before a ignition fault and major loss of hp.

I am not a big hp freak this trike came about because I had a good motor and a atc without a motor. 1 + 1 = fast