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View Full Version : *** 1977 atc 90 custom bandito replica build ***



Joseph Farrow
02-17-2016, 11:25 PM
Hey Guys want to share an Awesome build my Brother just completed. :beer
If you remember when I first came to 3WW I came here looking for info on 90-110's. In particular for (4) builds. My brother Judson and I were wanting to build a "Racer" and a "Duner" each. This is one of those builds.

A little history on the inspiration for the build. Johnson's ATC/Mini Truck in Santee Ca was one of the premier Customer/Performance ATC shops in SoCal back in the early days of ATC History.

Here is the Bike. It was featured in the first issue of 3 Wheeling Magazine. From the first time my brother saw it back in 1980 he was hooked.

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Here is one of their ads from an early 3 Wheeling Magazine.

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Our family took a trip to Cali in the early 80's and stopped by the shop.
(That is my brother and mom in the pic)

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I am going to post pic's of the finished product now and will post specifics later.

ENJOY!!! Again this thing is Awesome :drool:

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dabody69
02-17-2016, 11:54 PM
Amazing!!!

greenhuman
02-18-2016, 05:12 AM
That one in the mag was owned by Donna and Bobby Prather. Donna worked at Johnson's and they also had a blue one with the same mods. I rode them at Glamis in 1982 and saw the sand drags at night. I could have picked up both of these trikes for a song when I was coming over there regularly but I was too interested in buying all the 250R's and 350X's I could find. What a nitwit.
The one in the ad was a very limited edition lowered Bandito frame with a steeper rake for flat tracking and was Jim Johnson's trike.
I will find some pictured of that night ride and post them up soon.

Joseph Farrow
02-18-2016, 10:11 AM
That one in the mag was owned by Donna and Bobby Prather. Donna worked at Johnson's and they also had a blue one with the same mods. I rode them at Glamis in 1982 and saw the sand drags at night. I could have picked up both of these trikes for a song when I was coming over there regularly but I was too interested in buying all the 250R's and 350X's I could find. What a nitwit.
The one in the ad was a very limited edition lowered Bandito frame with a steeper rake for flat tracking and was Jim Johnson's trike.
I will find some pictured of that night ride and post them up soon.

Definitely post pics. The frame we had on our race bike back in the day was one of those frames. It was lower and had the steeper rake. I have never seen it advertised and if I recall Jim called it a Bandito II.

Here is a pic of the bike with the lower frame.

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Jwheeler
02-18-2016, 10:42 AM
Very nice build you guy's. Talk about bling !!!!!!!!!!!!!!!!!!!:drool::drool::drool::drool:

HairyJR
02-18-2016, 11:25 AM
Always wondered when all those chrome parts would show up and what the build would look like. Great build guys, can't wait for the next one!

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Joseph Farrow
02-18-2016, 11:50 AM
Very nice build you guy's. Talk about bling !!!!!!!!!!!!!!!!!!!:drool::drool::drool::drool:

We wanted to build them using period correct parts. Trying to build a correct representation of what you would have seen cruising the Dunes of Glamis in the early days of ATC's.

Hey Jeff - Judson Thanks You for donating the frame as well as other parts! lol

Ghostv2
02-18-2016, 12:36 PM
That is art. I would be afraid to ride it anywhere other than the dunes. Too dirty lol.

I need to source those tank straps too.

ironchop
02-18-2016, 04:44 PM
Wow!! Straight out of the Wayback Machine!

Awesome work.

Sent from my Z998 using Tapatalk

1979atc
02-18-2016, 05:11 PM
That is some amazing skill and craftsmanship right there. I love the paint job, and all the bling! Great job.

tri-shee
02-18-2016, 09:01 PM
Nice , Awesome paint job.

Daddio
02-18-2016, 09:53 PM
That is really cool! Excellent job on the build!

Joseph Farrow
02-18-2016, 10:37 PM
I'll brake the Mods down into two sections. Chassis and Motor

We'll start with the Chassis.

At the center is the "Bandito" frame. Judson sourced it from JWheeler. It also sports 2 Position Chrome Molly Front Forks compliments of Shortline10.
The front wheel hub and axle assembly is a polished aftermarket piece. The wheels are two piece. The front tire is a stock 74-79 SP Wamulas. The rears are "Competition Cut" Goodyear Rawhide. Alot of people ran this tire. The "Competition Cut" tires were not only grooved for the sand but were also half the weight of a stock Goodyear. You can literly see the cords it is shaves so thin. Judson got these from Mr. Clean.

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It has Renthol style bars with twist throttle and Grab On grips. Also has a Vintage Cross Bar Pad.
Front light is a classic Dick Cepek Off Road Light protected by a Pacific Racing light guard.
The rear hubs are held in place by Trick Trike "spinners" and the rear rack is a "Six Pack" rack from Iron Horse.

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On the back half the Chain is held in place with a BAPP Chain Tensioner.
It is stopped with an aftermarket Disc Brake set up from Precision Enterprises using an Air Heart caliper.

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Now to the Paint!
The Awesome paint job was done by Bard Barnes of Boosted Brad's Chop Shop.
Brad specializes in Choppers and is well know inside the bike world. Believe me the Pic's do not do the paint on this bike justice. You have to see it in person. It looks like you could dive into it and come out the other side. lol

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Judson had his seat cover custom made from Mole Hair. Can you say Old School....

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That's all for now. Next time I will tackle the Kick trailprotrailprotrailprotrailprotrailpro Full Blown 180cc Alcohol burning Helm & Son Power Plant!
Thanks for all the compliment on this bike. Wanted to share with you guys.

1979atc
02-18-2016, 10:45 PM
Very cool build, I like the trike in the background on your last pic. Looks to be another killer trike coming alive.

Joseph Farrow
02-19-2016, 10:31 AM
Very cool build, I like the trike in the background on your last pic. Looks to be another killer trike coming alive.

Here is the inspiration for that Build. ;)

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1979atc
02-19-2016, 06:20 PM
Here is the inspiration for that Build. ;)

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Going to be a neat build, can't wait to see it done. What kind of tank you have on that bike?

bkvette3
02-19-2016, 11:43 PM
Wow- just beautiful.

Joseph Farrow
02-22-2016, 11:24 PM
Okay figured I would finish up on this build.
For the final part we have the MOTOR.

It started out life as a stock 89cc 1977 ATC90 motor.
It is now a 180cc Helm & Son Alcohol Motor. For anyone who has not experienced one of these motors your are in for a susprise. They are unbelieveably fast and full of tork.
When you grab ahold of the pull start you better have it on the compression stroke and tell yourself it is going to start....if not you may lose some skin in the palm of your hand. lol

To get to 180cc form 89cc you have to do some major mods.
Start with a stroker crank. This motor has a Helm & Son 61mm Long Rod with 14mm pin. (90). The bore is 61.75mm using a 14:1 Forged Venolia Alcohol Piston. It runs inside a Helm & Son Star Burst Cylinder. With the Long Rod stroker you have to use a 6mm Aluminum spacer plate.

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Up top it has a Ported Head with lightend and polished valves. HD springs and titanium keepers with lightend rocker arms.
Cam is a BAPP Streaker II. Intake is a PK with 24mm Mikuni Carb with Sudco Pumper Kit.

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To handle the extra HP the clutch has been modified. It has HD plates and spring as well as a Reinforcement Ring. If you raced these bikes back in the day you know you can blow a clutch at high RPM's. The Ring keeps this from happening.

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On the other side it has the Hi/Low gear box removed for a Quick Change Sprocket Assembly. This allows for easy counter sprocket removal.
Notice the Extra Large BAPP Pull Start Handle. :)

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To relieve internal pressure it has several vents including a BAPP dip stick. To help add life to the motor a Haden Oil Cooler keeps the oil cool.

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To make it sound good and to keep with the Helm & Son theme Judson used a super rare Helm & Son Stinger Exhaust Pipe.

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Well this just about completes this build. Stay tuned for more to come. Other projects in the works.
I'll leave you with one parting shot......

Me sitting on the Bike. "Bandito Joe" (Notice Judson made me take my shoes off before I could set on it. lol)

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Jwheeler
02-22-2016, 11:46 PM
You guy's out did yourself on this build. Awesome trike, now lets get it in the sand turn & burn!!!!!!!!!!!!!!!!!!!!!!!!!!!:cool: