Full Version: 2008 Gpx 177 Atc Thread.
New crate motor in and dry fitted.
Oil cooler dry fitted.
That is one pretty motor... where, how much, are you impressed with it out of the box? I like the oil cooler!
Thats a fine looking engine right there. Ive got a GPX 146 in my 70 and ive been very happy with the motor. That 177 ought to be insane. Ive got a ATC 110/joker frame build im working on that im going to using the 177 in. Be interested to see how you end up working out a pull start on this motor. Also be interested to know what kind of a suspention front end you are using there?
Eric
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Eric
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dangerous man, twist throttle 
I like 
I like
Nice work dog....mobbing for sure...followed your whole thread on a different forum.....turned out kewl
The pipe and muffler came in today.A few bends here and there with some heat and it almost lined up on the rear.I am just going to fad up a peice of aluminum stock for the muffler mount.
I am very happy at this time in the build.All is on schedule!!!!!!
I am still working on the foot pegs.They should be done Thursday.
Then the intake and carb.
I am very happy at this time in the build.All is on schedule!!!!!!
I am still working on the foot pegs.They should be done Thursday.
Then the intake and carb.
How about some info on the forks?
QUOTE (TroyKrum @ Jun 27 2008, 02:44 PM) 
How about some info on the forks?
1985 200s
Uppers look 185 - 200s-ish with the lowers from a 200x.
I have done the following today.
Installed my footpegs,connected oil cooler lines,Mounted CDI and Coil,Made a heat shield for the pipe,Mounted the rear muffler,installed stop switch,installed clutch lever and cable.
I will be installing the chain tonight.:w00t:
I am also waiting for my header wrap and ss zip ties to come in.
Installed my footpegs,connected oil cooler lines,Mounted CDI and Coil,Made a heat shield for the pipe,Mounted the rear muffler,installed stop switch,installed clutch lever and cable.
I will be installing the chain tonight.:w00t:
I am also waiting for my header wrap and ss zip ties to come in.
Chain installed!
More info on that sprocket... that doesn't look like a stock setup!
Man you do awesome work!
Man you do awesome work!
Its a Parts Unlimited sprocket.
Nice to see the 110 frame being built, project looks really clean, great work enjoyed reading, keep us up to date on the 110 beast...
QUOTE (bustin-Bs @ Jun 29 2008, 08:05 AM)
Nice to see the 110 frame being built, project looks really clean, great work enjoyed reading, keep us up to date on the 110 beast...
It was a 1977 ATC 90.
I really like your build. Reminds me of my first bike (77' atc90 built to a 132).
To perfect it all you need is a joker. Those stock frames are notoriously weak.
Should be a great bike!
To perfect it all you need is a joker. Those stock frames are notoriously weak.
Should be a great bike!
QUOTE (kennerz @ Jun 29 2008, 03:14 PM)
I really like your build. Reminds me of my first bike (77' atc90 built to a 132).
To perfect it all you need is a joker. Those stock frames are notoriously weak.
Should be a great bike!
To perfect it all you need is a joker. Those stock frames are notoriously weak.
Should be a great bike!
Where are there weak points?
upper rear motor mounts develope spider cracks from the flexing
I had a stock frame bend at the axle mount, it twisted the entire rear frame. had to replace it with a Joker - very strong frame. I supposed even a used one would hold up over the years.
New Hondaline headlight guard installed.
QUOTE (awfulsailor @ Jun 4 2008, 07:50 PM)
Thats a fine looking engine right there. Ive got a GPX 146 in my 70 and ive been very happy with the motor. That 177 ought to be insane. Ive got a ATC 110/joker frame build im working on that im going to using the 177 in. Be interested to see how you end up working out a pull start on this motor. Also be interested to know what kind of a suspention front end you are using there?
Eric
Click to view attachment
Click to view attachment
Eric
Click to view attachment
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nice trike that is pretty sweet. what size paddles are those?
New rear Marier plastic came in today.Very nice!!!!looks great.
Just need to make a 2" inch spacer plate for the back fender bracket.Should have the tank done in the next couple weeks.I hope to have it fired up by this weekend.:w00t:
Just need to make a 2" inch spacer plate for the back fender bracket.Should have the tank done in the next couple weeks.I hope to have it fired up by this weekend.:w00t:
I finally got the intake back and dry fitted.I need to make some studs to mount the intake to the head.Ordered a K+N filter.I have to do some modifying to the gastank for it to fit over the carb.
I cleaned up the weld and sandblasted and painted the intake today.Next is the tank!!!!
Finally got the correct rear fender latch,The holes on the plastic were off.Now the seat needs to be addressed.
It runs!!!!!!
Took it for a 20 min ride.Started on the 5 th kick!!!!!!:w00t:
Here is a vid of it running.
Took it for a 20 min ride.Started on the 5 th kick!!!!!!:w00t:
Here is a vid of it running.
Here is a short vid of me riding.Dam is it fast on a strait line.:w00t: :w00t: :w00t:
I have to ride it around in 2nd gear so it don't wheelie every time you give it a little gas.lol
I have to ride it around in 2nd gear so it don't wheelie every time you give it a little gas.lol
This my 1981 250r tank that I will be using.Still needs some modifications.Fits on pretty good.
thats bad a$$$ makes we wanna go outside and rip my 185s apart nice job we really dig it
Thanks!!!!!!
Here is some progress pics!!!!!
Sandblasted and painted the upper tree to match the fork bodies.
K+N crank case breather installed.I made a custom bracket to hold it in place.
Made aluminum bracket for the carb over flow and breather tube for the carb
Working on the skidplate,still needs some work.
Sandblasted and painted the upper tree to match the fork bodies.
K+N crank case breather installed.I made a custom bracket to hold it in place.
Made aluminum bracket for the carb over flow and breather tube for the carb
Working on the skidplate,still needs some work.
killer, I never heard a ATC 90 sound like that before.. Just be careful. power and no suspension is an interesting combo. Great pit bike. very original. nice to see someone bringing back the old school.
How much HP from the gpx engine??
How much HP from the gpx engine??
QUOTE (kennerz @ Aug 26 2008, 12:56 AM)
killer, I never heard a ATC 90 sound like that before.. Just be careful. power and no suspension is an interesting combo. Great pit bike. very original. nice to see someone bringing back the old school.
How much HP from the gpx engine??
How much HP from the gpx engine??
20hp
2strokes --- frickin' awesome!
I've followed your build, dig what you've done. I have three 110s at this time all with aftermarket frames ( Joker and Bandito ) --- What you've done is top shape, I believe you would really dig 86ing that stock box frame and adding an aftermarket frame to your build -- they're about 2-3" longer and that will help keeping the front end down a bit -- also a set of 3" wheel spacers will keep it a lot more stable with that power plant you chose ===which is bad a$$.
I'm stuck with stock engines at this time and want to replace them w/ an aftermarket. Back in the day I had a stroked 110 with a big bore cylinder kit from a Johnny's Speed and Chrome ( that name ought to clear some dust off a few readers) --- displacement was in the 170's -- installed an external oil cooler with some help from the "OG" - Danny's Machine Works in Santee, CA. I ran a straight pipe like a harley, web cam, barnett clutch, ported and polished head, etc etc -- that ATC flew and sounded awesome.
I need some help: did the motor transplant bolt right in? were any frame mods necessary? I read the intake adjustments and fabrication needed for pegs and the cooler - but other than that was it fairly a straight bolt up -- did the drive train line up? did you need to install a battery for the head light? those answers will help me out a ton!
We use to run about a 57 tooth sprocket in high range and had good results for 118cc to 123cc --- if I remember right, I used about a 42" for the big bore bike (170 ) -- what is the sprocket size you installed? is it about right for that motor?
FYI - you may know it, I can't recall reading or seeing it in your other threads -- but they use to make an aftermarket dual roller chain tensioner that worked great -- I have one that needs rechroming and new rollers -- let me know if you have seen or have one -- if you haven't , I'll snap some photos with dims and post them.
Very cool trike --- thanks for the motivation and sharin'
I've followed your build, dig what you've done. I have three 110s at this time all with aftermarket frames ( Joker and Bandito ) --- What you've done is top shape, I believe you would really dig 86ing that stock box frame and adding an aftermarket frame to your build -- they're about 2-3" longer and that will help keeping the front end down a bit -- also a set of 3" wheel spacers will keep it a lot more stable with that power plant you chose ===which is bad a$$.
I'm stuck with stock engines at this time and want to replace them w/ an aftermarket. Back in the day I had a stroked 110 with a big bore cylinder kit from a Johnny's Speed and Chrome ( that name ought to clear some dust off a few readers) --- displacement was in the 170's -- installed an external oil cooler with some help from the "OG" - Danny's Machine Works in Santee, CA. I ran a straight pipe like a harley, web cam, barnett clutch, ported and polished head, etc etc -- that ATC flew and sounded awesome.
I need some help: did the motor transplant bolt right in? were any frame mods necessary? I read the intake adjustments and fabrication needed for pegs and the cooler - but other than that was it fairly a straight bolt up -- did the drive train line up? did you need to install a battery for the head light? those answers will help me out a ton!
We use to run about a 57 tooth sprocket in high range and had good results for 118cc to 123cc --- if I remember right, I used about a 42" for the big bore bike (170 ) -- what is the sprocket size you installed? is it about right for that motor?
FYI - you may know it, I can't recall reading or seeing it in your other threads -- but they use to make an aftermarket dual roller chain tensioner that worked great -- I have one that needs rechroming and new rollers -- let me know if you have seen or have one -- if you haven't , I'll snap some photos with dims and post them.
Very cool trike --- thanks for the motivation and sharin'
I totally dig those forks!!! What an engine!!! Holy crap... can't wait to see some video of you moving on that thing!
QUOTE (DJTHUNDER @ Sep 4 2008, 11:38 AM)
2strokes --- frickin' awesome! Thanks!!!!!
I've followed your build, dig what you've done. I have three 110s at this time all with aftermarket frames ( Joker and Bandito ) --- What you've done is top shape, I believe you would really dig 86ing that stock box frame and adding an aftermarket frame to your build -- they're about 2-3" longer and that will help keeping the front end down a bit -- also a set of 3" wheel spacers will keep it a lot more stable with that power plant you chose ===which is bad a$$. The wheel spaces are happening soon,I wanted to keep some of the hartail look to this trike.
I'm stuck with stock engines at this time and want to replace them w/ an aftermarket. Back in the day I had a stroked 110 with a big bore cylinder kit from a Johnny's Speed and Chrome ( that name ought to clear some dust off a few readers) --- displacement was in the 170's -- installed an external oil cooler with some help from the "OG" - Danny's Machine Works in Santee, CA. I ran a straight pipe like a harley, web cam, barnett clutch, ported and polished head, etc etc -- that ATC flew and sounded awesome.
I need some help: did the motor transplant bolt right in? were any frame mods necessary? I read the intake adjustments and fabrication needed for pegs and the cooler - but other than that was it fairly a straight bolt up -- did the drive train line up? did you need to install a battery for the head light? those answers will help me out a ton! The motor needs some custom brackets made for the bottom of the motor.The foot pegs had to be lined up with the motor.No battery is needed fro the light.The motor has wires fro the light.
We use to run about a 57 tooth sprocket in high range and had good results for 118cc to 123cc --- if I remember right, I used about a 42" for the big bore bike (170 ) -- what is the sprocket size you installed? is it about right for that motor?Front is a 17 tooth,the rear is stock.
FYI - you may know it, I can't recall reading or seeing it in your other threads -- but they use to make an aftermarket dual roller chain tensioner that worked great -- I have one that needs rechroming and new rollers -- let me know if you have seen or have one -- if you haven't , I'll snap some photos with dims and post them. Do you have a pic of them or a link to buy one.
Very cool trike --- thanks for the motivation and sharin' No problem!!!
I've followed your build, dig what you've done. I have three 110s at this time all with aftermarket frames ( Joker and Bandito ) --- What you've done is top shape, I believe you would really dig 86ing that stock box frame and adding an aftermarket frame to your build -- they're about 2-3" longer and that will help keeping the front end down a bit -- also a set of 3" wheel spacers will keep it a lot more stable with that power plant you chose ===which is bad a$$. The wheel spaces are happening soon,I wanted to keep some of the hartail look to this trike.
I'm stuck with stock engines at this time and want to replace them w/ an aftermarket. Back in the day I had a stroked 110 with a big bore cylinder kit from a Johnny's Speed and Chrome ( that name ought to clear some dust off a few readers) --- displacement was in the 170's -- installed an external oil cooler with some help from the "OG" - Danny's Machine Works in Santee, CA. I ran a straight pipe like a harley, web cam, barnett clutch, ported and polished head, etc etc -- that ATC flew and sounded awesome.
I need some help: did the motor transplant bolt right in? were any frame mods necessary? I read the intake adjustments and fabrication needed for pegs and the cooler - but other than that was it fairly a straight bolt up -- did the drive train line up? did you need to install a battery for the head light? those answers will help me out a ton! The motor needs some custom brackets made for the bottom of the motor.The foot pegs had to be lined up with the motor.No battery is needed fro the light.The motor has wires fro the light.
We use to run about a 57 tooth sprocket in high range and had good results for 118cc to 123cc --- if I remember right, I used about a 42" for the big bore bike (170 ) -- what is the sprocket size you installed? is it about right for that motor?Front is a 17 tooth,the rear is stock.
FYI - you may know it, I can't recall reading or seeing it in your other threads -- but they use to make an aftermarket dual roller chain tensioner that worked great -- I have one that needs rechroming and new rollers -- let me know if you have seen or have one -- if you haven't , I'll snap some photos with dims and post them. Do you have a pic of them or a link to buy one.
Very cool trike --- thanks for the motivation and sharin'
No problem!!!QUOTE (TroyKrum @ Sep 4 2008, 12:17 PM)
I totally dig those forks!!! What an engine!!! Holy crap... can't wait to see some video of you moving on that thing!
Thanks
2- strokes --- thanks for the info...so only the bottom/footpegs needed some fab work --- the motor mounts lined right up -- very cool.
Awesome -- I'll dig out the chain tensioner out of the garage and snap some shots and post them for you. I should have them up next week ---
Can you PM me with the vendor info who you purchased the motor from, any cost info would be helpful too.
Thanks ---
Awesome -- I'll dig out the chain tensioner out of the garage and snap some shots and post them for you. I should have them up next week ---
Can you PM me with the vendor info who you purchased the motor from, any cost info would be helpful too.
Thanks ---
Here a progress pic.
Got my K+N for the carb.
Still working on the skidplate.Should have it done by next week.
Got my K+N for the carb.
Still working on the skidplate.Should have it done by next week.
Got my wheel spacer today!!!!!:w00t: Been looking for this kind for awhile!
Should have them mounted soon!
Should have them mounted soon!
Got my hubs today!!!!!
Baby got back!!!!
Baby got back!!!!
The wheel spacers give me just the right amount of clearance. The more I ride it the more I am impressed with it. The motor fires right up on first kick every time.
Finally got the skidplate done.
Great "New School" 110. Please do yourself a favor and ditch that stock frame, with the rear spacers and 20 hp I guarantee the frame is a short timer. It is going to bend when you least expect it, they ARE NOT strong at all. This is for your safety. Source a joker and that will be the perfect resto.
Turned out SWEET!!!!!!!!!
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