ATC 70 All tricked out Powroll Old school

[shortline10]

Been collecting parts for this build for a long time . +3 in frame 108cc powroll stroker motor 52mm bore x 51mm stroke , powroll cam . OEM blue fenders , Webco swirl intake with a 22mm mikuni . This motor didnt use a flywheel to generate the power , instead they used a small 6volt battery and charged it between races . I'm going back with a regular flywheel set up . Pictures soon if I can figure my camera out :lol:

[90guy]

Holy man loving this build keep it up! 70 porn 0.0 lol

[hoosierlogger]

Is this the one that was raced by Mickey Dunlap's son?

[shortline10]

YES the same !!!!
Theirs a race video of it some were floating around this site but I cant find it .




Is this the one that was raced by Mickey Dunlap's son?

[fannitti]

you have a pic of the manifold

[big specht]

I was always going to build one of those battery ignitions for the old 70 motors. I had a timing advance flywheel cut down and like alot of other ideas I never got finished . That will be a neat old school racer

[Toaster556]

That's total badassery. I saw one of those style ignitions on a kart locally, still kicking myself for not buying the whole thing! How would that affect the crank balance with the clutch hanging off the other side?
Is it still an auto clutch or was it converted to manual?

I had the thread bookmarked, just too cool! Old Videos (http://www.3wheelerworld.com/showthread.php/139391-Old-video-s)

[motoman1012002]

very nice Mike you building a water number too

[HONDA_ATC_FREAK]

ok how in the world do you make the motor look brand new again, i always wonder it on all of your builds. It looks as if you could eat of of it its so clean.

[shortline10]

Not yet but i'll post one when I get to that part of the build .


you have a pic of the manifold

[shortline10]

Gonna let my 6 year old son ride it so its staying auto clutch for now .



That's total badassery. I saw one of those style ignitions on a kart locally, still kicking myself for not buying the whole thing! How would that affect the crank balance with the clutch hanging off the other side?
Is it still an auto clutch or was it converted to manual?

I had the thread bookmarked, just too cool! Old Videos (http://www.3wheelerworld.com/showthread.php/139391-Old-video-s)

[shortline10]

Yeah got a customers 85 250r were doing up with alot of powder and chrome .


very nice Mike you building a water number too

[Micahdogg]

That is a really cool build. I'll bet it is revvy without all that junk on the crank.

[shortline10]

:lol: A parts washer and a soft brass brush . I'm not going to crazy with the cleanup on this one gonna let my 6 year old son ride it .


ok how in the world do you make the motor look brand new again, i always wonder it on all of your builds. It looks as if you could eat of of it its so clean.

[HONDA_ATC_FREAK]

I have a soft brass brush but no parts washer....yet maybe someday when space allows. i am now regulated to using a plastic tub and a brush, what kind of cleaner do you use for the parts washer. I have been using a brass brush and cleaning small things up with it but it still looks like junk thats just been washed lol.

[Micahdogg]

I've witnessed baking soda do an amazing job at restoring aluminum engine parts without disturbing the patina. Just buy a box of arm and hammer, stick a tube in it, fasten the tube to your airgun attachment and you have a homemade soda blaster. Plus it's enviro friendly.

[shortline10]

Mineral spirits .


I have a soft brass brush but no parts washer....yet maybe someday when space allows. i am now regulated to using a plastic tub and a brush, what kind of cleaner do you use for the parts washer. I have been using a brass brush and cleaning small things up with it but it still looks like junk thats just been washed lol.

[250Eddie]

Mike = The man of 70s in south fl , I can't wait for him to fix my sons 70 :)

[HONDA_ATC_FREAK]

I've witnessed baking soda do an amazing job at restoring aluminum engine parts without disturbing the patina. Just buy a box of arm and hammer, stick a tube in it, fasten the tube to your airgun attachment and you have a homemade soda blaster. Plus it's enviro friendly.
what kind of air gun attachment? got pics of this contraption I might have to try it.

[Micahdogg]

You can use any kind of air gun...most compressors come with some sort of attachment:
http://www.rogerarrick.com/sodablaster/sodablasting_800.jpg

Some of the results with soda. This was a KX250 restoration I was watching where the guy said:

I found a good way to get a nice finish on parts like the brake calipers, etc. First, I clean and degrease them chemically (simple green, mineral spirits, brake clean) only using nylon bristle brushes. You can use a wire brush but only on bad areas. Dry, then soda blast. This leaves a more flat but bright tone to the surface. So I lightly go over the part with a new/clean wire brush (toothbrush size) and that gives it a small amount of sheen and deepens the color a little. Looks close to factory, I think.

http://i114.photobucket.com/albums/n248/Jeekinz/94%20KX250/IMG_03912.jpg
http://i114.photobucket.com/albums/n248/Jeekinz/94%20KX250/IMG_03922.jpg
http://i114.photobucket.com/albums/n248/Jeekinz/94%20KX250/IMG_2836.jpg

Sorry for the hi-jack Shortline.

[shortline10]

I have this project about 90% complete but I need a friggen camera :lol:

[shortline10]

Taking pictures off my phone is a PITA but I did it :lol: . Waiting or rear tires to come in but its just about done . Bassani pipe cleaned up pretty good .

[hoosierlogger]

Lookin Good Mike!!!!

[Micahdogg]

That thing looks great...but you should ask for a new wire brush for xmas :)

[Jon Boy]

:beer damn fine work shortline. those valve covers are the cat's meow! :drool:

[shortline10]

Yeah I think your right :lol:

Tires are in ........




That thing looks great...but you should ask for a new wire brush for xmas :)

[briano]

That thing is looking nice. I'm glad my flywheel ended up on a sweet project like this one. Plus there is going to be one happy 6 year old.

[shortline10]

Got it all done this morning , had to install a new HD clutch set up go figure LOL .
Fast little bike . My 6 year old boy had a BIG smile on his face the first time he got on the throttle :lol: .

[userj8670]

well i guess i will be the one to ask - how about a video so we can hear this snotty lil engine

[Toaster556]

Looks even better finished! That thing belongs on display, yet it's a rider, my kind of machine!

[oldtime3wheeler]

That bike is sweet. Very nice job!

[John jr]

Looks awesome, Nice job. I really like the exhaust.:D

[tri-shee]

Great looking bike . Love those flat track rear tires .

[shortline10]

Will try to get a video up with my boy riding it , new computer and camera has got me all messed up :lol: .



well i guess i will be the one to ask - how about a video so we can hear this snotty lil engine

[shortline10]

Oh yeah it will be a rider but not abused if I can help it .........




Looks even better finished! That thing belongs on display, yet it's a rider, my kind of machine!

[blue27]

looks good, can I ride it to?

[shortline10]

It's a little beast :lol: think you can handle it ?




looks good, can I ride it to?