Pics to come... It was a bit frustrating till I fired it up and went out and ran with some friends with fairly stock bikes. WOW they did not have a chance... If anyone wants I will post the pics inside and out. I do not mind helping as I had a ton of machine work help to make this happen.

1. Took lifan side cover off and trashed it.

2. Got a trx 70 sidecover off ebay. ( first yr with cdi so it is bigger for the guts inside)

3. Boyce racing helped me with tuning !!

4. Machined down the inside of the basket for pull starter. And machined down the flywheel a bit..

5. Mounted it all back on... (trx sidecover is thicker and no further maching work was needed on sidecover..)

6. First pull she fired......Off to the races...

Taking her apart this weekend to get it powder coated candy apple red. ( white plastic ) Black tag crf 50 bars to get the clutch and twist throttle going

I will post some pics when she is back together....

Hello Rotz, I am very interested in detailed pictures and dimensions of how much you machined everything down. I have a 110 and I really didn't want to put a battery in my suspension 70. I think you have started something cool.

Here it is going back together .... And two pics of the basket after we milled down the center plate on the flywheel and then mounted the basket..

Here is what it looked like when I got it from the guy out of the barn....

Very very nice, love the color...

sweet

looks sweet!

The pictures helped alot, I understand what your doing now. Did you have to machine any of the thickness of the pullstart basked or the flywheel down? Or is it you just machined the 2 diameters so they would go together? That trike is looking very nice.

The basket is a touch too big so one will have to take a hair off the black metal piece in the center with the rivets in it and a touch off the basket. Anyone with access to a lathe can do it no problem. One thing to watch out for is my flywheel was no centered perfectly. So if you can see in the pics I am over to one side like 4 thousands of an inch.

Any other questions just ask.


I wanted to make the kick starter work but I hated the wheel spacers and then still you had the exhaust in the way. It will work but my way took 4 bolts, a lathe, and a 30 pack for the lathe operator.

I hope to get the trike together tonight.

Down the road might come polished or chrome wheels. Time will tell............

Rotz, that is very slick. I'm' looking for trx parts now. I hope you didn't give him the 30 pack until after he as done.

Getting closer.... If anyone knows of anyone that makes those flamed seats... WOW I would love to get one... Nah no worries... He is a retired honda guy if it needs anything he can do it. My friend is working on making a suspension 70 as we speak with him. 2006 style



Brian

Looks really good.....

FUELATV

rotz69

I have another question. Is the reason you had to machine the flywheel is to leave enough of the basket for the bolts? Othewise, I would think you could just have taken all that was needed out of the basket. I am also assuming that you had to drill and tap the holes in the flywheel for the basket mount bolts also.

That is a killer conversion, You really have me thinking.

Yes it was so I could use the factory bolt holes. And when I say machine it is not much at all. I could check with my guy but I bet he would machine and install the basket for under 50.00... So lets say you have 50.00 in the basket and 200.00 in the motor. Can you even start to get a 70 motor to 8 horse for that.. I will answer that nope. And then you are still dealing with a ton of 20 plus yr old parts. The one thing that is a negative is my friend just built a 120cc monster out of a 70 and the 70's have no rev limiter. But he has 1500.00 in his motor. And is pulling 13 plus horse.

I just realized that not only does the TRX side cover allow you to do the pullstart conversion
but it also would allow you to utilize the chain guard, which you cannot do with the Lifan setup.

I like my elec start but if the conversion would allow you to use the 120 monster motor or the 125 lifan you would add 1-2 hp ( over the 110 ) and negate the need for a battery and a place to mount it.

You mentioned CDI, what year TRX70 cover is that?

Is the TRX70 cover larger than the ATC70 cover?

Anyone know where I can get one of these TRX side covers?

Rotz69, I just did one of the conversions of the trx sidecover on the lifan. How sweet it is. I took all my metal out of the basket and just redrilled new holes in the basket. If hasn't given me any troubles so far. Time will tell. It is so nice to have the lifan in the suspension 70 and not have to worry about a battery and all the extra wiring and the battery acid. As far as trx sidecovers. If you have a good atc junkyard near you, I would start looking there. This is really a sweet and not too difficult to do conversion. Thanks rotz for all the info. Why anyone would want to rebuild an atc70 engine when you could do this is beyond me, unless your restoring of course.

Is it difficult to pull start the 110's? Looks like the way to go when I get that far!

can you do this conversion to the 125?? thanks much - DAVE

70discotrike, I did the conversion with a 125 lifan engine and it is the same. It is a great mod that will let you have great results. I just used the trx sidecover. The pullstart and the cage I used are from an atc70 and I didn't have any problems. I cut my sidecover down since I have put this on a suspension 70. I am debating on cutting down the sidecover more. Also, it seems that only 2 bolts hold the sidecover on in the stock location, I was thinking about drilling a flat spot on a place on the trx sidecover that would let me use 3 bolts to hold the sidecover on, hopefully making it more secure. If worst comes to worst, I will use a pull start cable if it seems to tough on the regular pull rope. I think a new rope should do ok, I wouldn't count on an older pull rope holding up. I also used grade 8 fasteners to secure the cage to the flywheel for added strength, the bolts I used were a little smaller than the stock bolts. I just need to figure out if I will trim down the sidecover any more and then send it and the recoil out to be chromed so it will match the stock lifan sidecover.

Rotz69, Did you use the footpegs from the trx70? The footpegs from the atc70 seem a little tight to the recoil starter. I wonder if you used aftermarket pegs from a crf50 if they would work? I hope to have this puppy test fired soon. Just waiting for my package from Dr. Atv with my electrical connections.

oh thank god. im set on my engine choice then. this is the only reason why i was hesitant on getting the 125. is it too much of a bear to pull? i will most likely be push starting it most of the time, but i would like to not rip my hand off on a cold morning.

okay, now explain to me why you must use a TRX70 cover. is the flange where the starter bolts up a little farther out? whats different compared to the ATC70.

and last but not least, could you post up a few pics of the issue youre having on bolting up the side cover? i want to make sure i get everything out of the way before i commit fully to this - DAVE

Here are pics of the recoil start on the lifan 125. You can see the area I am thinking of still removing by the markings of the black magic marker. You can see a bolt hole on the cover would be removed, but, there is no bolt hole in the cases behind where the bolt hole is on the cover. On the small hump area before the bolt hole on the bottom (the first picture) is where the bolt hole is. I will have to center a hole on the hump and drill that for the other bolt hole. I also need to plug up the area where the neutral indicator is because the lifan engine has no provision for the neutral indicator shaft.

Still lookin for a TRX side cover. Anyone got one laying around?

So are you saying that it's pretty tough to pull?

I've had the stock 70's rip out of my hand on an engine kick back

might be a good way of keeping the kid's off

Im not sure if my question got answered.

Why exactly wont the ATC sidecover not work? Is it too short where the pullstart bolts up?

Do you think if you got someone with a plasmarc or something to that extent to sut out a spacer, would that work? Thanks much - DAVE

I used the TRX70 zippy, sidecover and flywheel. All bolted up perfectly with no mods needed.

Have you guys seen this 218cc ATC70??
It's FREAK'N SICK!!

http://www.glamisdunes.com/invision/index....t&p=2000485

70sdisco trike, the atc70 side cover won't work because the inside clearance where the cdi stator won't clear the inside of the cover. The trx70 is cdi and is set up with a timing hole to even do the timing by just removing the plug and setting by the timing mark. You could possibly use an atc70 side cover but you would have to remove material on the inside of the cover and if you weren't extremely carefuly you would probably trash the sidecover. It is easier with the trx70 sidecover, when you can find them.

Greenhuman Rocks!!!!!!!!!!

I'd like to see the pic of the 218cc engine

spec's would be nice too

Are you saying that the TRX70 sidecover, flywheel and pullstart assembly all bolt up to the Lifan 110 with no mods? Meaning no welding or machining?

well hagen does some awesome work, however, i think mart over in australia has him beat with his laydown aircooled atc250r motor


laydown 250r atc70

What and where do you have to mill down to make it fit...i am confused...i want a big CC lifan and want to use my pull start...i have a trx70

anyone ever run into any problems with their pull start 110's or 125's?

What parts off of what year atv do I need to make this work?