That was my first real motorcycle...sadly I did what we called back then “MX’d” or stripped the bike, I broke the frame several times and finally bent the crankshaft. RIP my CT175...It will be interesting to see you bring one back to life...
This one was slightly “MX’d” with a oil injection delete, 175MX cylinder/piston and airbox. Should be a little screamer when it’s going again and I can’t wait to get it in the woods!
Ah man sorry to see it's really turned into a big project. Kickstart issues are a not too uncommon issue on these years. If you look at the brochures and posters from when they were released, kick start was always at 10-11 o'clock. A lot of people moved it a spline or two on the shaft to rest 12 o'clock to get a stronger kick on it (I assume) but then it can get kicked past where it was designed to, as you have seen in the case damage. Glad that engine popped up for cheap, had something similar happen when I was working on the same, picked up a '72 AT2 engine for less than half of one idler gear cost (kudos to Yamaha you can still get them new) and had to use a lot of kickstart and clutch parts off it.
Thanks, but of a bummer but it will be a good learning experience too. Completely rebuilding the engine while I’m in there. Bearings seals piston rings etc. should be a little ripper when done
Grouse find mate, i’ve got 3 Aussie Ag175’s which are basically the same bike but with big tank, racks extra guards different baffle ect. Will be building very soon, your video is definitely inspiring😁
@@Garage2TrailOne of the cylinders has some spicy porting and a Vforce reed block, will be good to see how that goes. Standard re-jetted carb and stock pipe for now, unsure about air intake yet as the ag’s have a twin airbox system and its quite restrictive plus its like $150 for a set of filters. More room for creativity I guess!
@@Garage2TrailNo just the stock one as I originally bought a package of two bikes to make one but have been collecting bits to make them both complete so I thought why not since I had a spare already. Mx one would be very hard to find over here I would have thought, whats a dime a dozen for you over there is a once in lifetime treasure for us! Guess that makes it more rewarding anyways. Was very surprised when you managed to pick a spare engine up so easily👍🏼🤙🏼
@@Garage2TrailShould check some photos of the Ag100/175 out online. I have the early orange tank ones and also have a very cool original brochure for them. One of mine even already had a slightly banana shaped ribbed seat cover on it that must have been an aftermarket thing of the day. Absolutely timeless bikes, Yamaha definitely had some of the best lookers for their day.
You know, if this is for trail riding, you've now got the parts you need to reinstate the oil injection, and regain the stock porting. MX tuning is hardly what you want for the trail anyway. Just a thought.
Thanks Dave for the input! That’s a good idea, but the cylinder that came on this bike is for and MX with the reed valve intake and no input for the oil line. The one on the donor engine is the old style without the reed valve and I could use that if I decide to change it down the road. I kinda want to see how it goes with the MX setup first.
Great video, I noticed that the clutch basket on the original bike has wear, right at the point where the clutch plates and gauge it so it is grooved. You can file it smooth or the clutch basket on the donor might be better. Look forward to your next video
Thanks! Yeah, I was going to probably use the basket off the other which looks like it was ridden much easier but unfortunately sat outside for a long time in the elements.
I love this bike.if i had one i might put a 21 inch front wheel and a compression release .everybody had a compression release on 2 strokes works like a jake break and sounds cool
I had one back in the 70s ,it was a worn out unit and I hated it and gutless as hell,a cr 125 would destroy those,I would not spend a hour on one but all this old stuff is in demand now to a degree.
Stumbled across your channel. I've restored so many ct3 I build them with my eyes closed LOL.I seen this bike on facebook for sale. I knew there'd be some problems. Hope you didn't pay to much for it , I restore 1968 76 yamaha enduros A lot of my bikes have been on Display at New england motorcycle museum Kaplan cycles. Going to check out your next video.See how this goes.
That’s awesome! I watch Kaplan all the time and I actually met him at mid Ohio 2022 and sold him a ‘77 XL125 that I fixed up! Where are you from? I picked this one up at mid Ohio this year. I knew I had some work ahead of me but I enjoy it and like learning about these old bikes.
I'm from Rhode Island. I've been friends with Ken junior for a while now He has a passion for these bikes. I've been seen and mentioned in many of his videos.
Yeah I'm not sure but I don't think you can use one side of the case. I think they come from the factory as a pair so you would have to use the same cases
Thanks Josh, that was a concern of mine but a friend of mine that’s a retired Yamaha mechanic from the 70s assured me the other side would be ok to use. I already mated them up to eyeball it before I start reassembling it and it looks good. I appreciate the heads up though!
I was going to make a similar comment but l think if you assemble them with the major shafts turning freely that usually means they're a good enough match.
@@Garage2Trail I totally love that bike. You did a comprehensive job getting that one going. I love those old Italian Harleys. When I find one I am going to turn it into a flat track racer.
I’m one of his subscribers and have seen his CT3 videos. Very helpful to know what I’m getting into here. I’ll be watching his assembly video again here in the next couple days
@@Garage2Trail I had to fit a new clutch to my 73 dt175 & I found it very helpful,after having to get another carb because the original wouldn’t stop leaking,I managed to get another carb ,rebuilt it,& for a 175,it really flies,considering I’m used to a 1200 bandit & a Suzuki gt750,I reckon I have a keeper here
Hi mate, so where do you source a clutch for these models nowadays? I’d like to buy one and restore the same as you, but concerned about getting parts Cheers Dav
Hi Dav, I was able to find the clutch plates on eBay. 3rd party of course but they will work. I think you can still get OEM clutch plates. I got a bunch of OEM Yamaha seals and bearings off rockymountainatvmc.com. Check them out. There is an OEM section on their site that lets you search almost every bike made. Mainly from the big 4 Japanese manufacturers.
Errrr, why didnt you put the parts motor into the bike? This bike is already not worth a lot IF the original motor in it was a mishmash/MX version. It won't be matching numbers so not worth a lot. I would have just rebuilt the parts motor and put the whole thing in, it would have been closer to original then......
@NB-nu5vn that’s what I was thinking. What would it matter if I stole the right side crank case from a motor that has rusty bearings and crank to revive another classic Yamaha with clean bits?
![[LIVE] : ONE ลุมพินี 82 วันนี้!! คู่เอก | ยอดไอคิว vs อับดัลลาห์](http://i.ytimg.com/vi/hSsyTl_9bqs/mqdefault.jpg)
That was my first real motorcycle...sadly I did what we called back then “MX’d” or stripped the bike, I broke the frame several times and finally bent the crankshaft. RIP my CT175...It will be interesting to see you bring one back to life...
This one was slightly “MX’d” with a oil injection delete, 175MX cylinder/piston and airbox. Should be a little screamer when it’s going again and I can’t wait to get it in the woods!
DT airbox imo. Great videos. Your confidence has really increased.
Thank you Dave!
I love the early Yamahas to early 70s the DS 7250 is my favorite
Ah man sorry to see it's really turned into a big project. Kickstart issues are a not too uncommon issue on these years. If you look at the brochures and posters from when they were released, kick start was always at 10-11 o'clock. A lot of people moved it a spline or two on the shaft to rest 12 o'clock to get a stronger kick on it (I assume) but then it can get kicked past where it was designed to, as you have seen in the case damage. Glad that engine popped up for cheap, had something similar happen when I was working on the same, picked up a '72 AT2 engine for less than half of one idler gear cost (kudos to Yamaha you can still get them new) and had to use a lot of kickstart and clutch parts off it.
Thanks, but of a bummer but it will be a good learning experience too. Completely rebuilding the engine while I’m in there. Bearings seals piston rings etc. should be a little ripper when done
I would strip that clutch basket further to check the rubber rings/cushions. They normally need replacing.
Thanks Steve, I’ll take a look at that.
Fun project!
Grouse find mate, i’ve got 3 Aussie Ag175’s which are basically the same bike but with big tank, racks extra guards different baffle ect. Will be building very soon, your video is definitely inspiring😁
Thanks! Glad to be able to help inspire! 👍
@@Garage2TrailOne of the cylinders has some spicy porting and a Vforce reed block, will be good to see how that goes. Standard re-jetted carb and stock pipe for now, unsure about air intake yet as the ag’s have a twin airbox system and its quite restrictive plus its like $150 for a set of filters. More room for creativity I guess!
That’s cool! Is that the MX cylinder with the porting?
@@Garage2TrailNo just the stock one as I originally bought a package of two bikes to make one but have been collecting bits to make them both complete so I thought why not since I had a spare already. Mx one would be very hard to find over here I would have thought, whats a dime a dozen for you over there is a once in lifetime treasure for us! Guess that makes it more rewarding anyways. Was very surprised when you managed to pick a spare engine up so easily👍🏼🤙🏼
@@Garage2TrailShould check some photos of the Ag100/175 out online. I have the early orange tank ones and also have a very cool original brochure for them. One of mine even already had a slightly banana shaped ribbed seat cover on it that must have been an aftermarket thing of the day. Absolutely timeless bikes, Yamaha definitely had some of the best lookers for their day.
You know, if this is for trail riding, you've now got the parts you need to reinstate the oil injection, and regain the stock porting. MX tuning is hardly what you want for the trail anyway. Just a thought.
Thanks Dave for the input! That’s a good idea, but the cylinder that came on this bike is for and MX with the reed valve intake and no input for the oil line. The one on the donor engine is the old style without the reed valve and I could use that if I decide to change it down the road. I kinda want to see how it goes with the MX setup first.
Very cool project
Great video, I noticed that the clutch basket on the original bike has wear, right at the point where the clutch plates and gauge it so it is grooved. You can file it smooth or the clutch basket on the donor might be better. Look forward to your next video
Thanks! Yeah, I was going to probably use the basket off the other which looks like it was ridden much easier but unfortunately sat outside for a long time in the elements.
That piece on the old kicker is the stop. The spring on the new kicker has its protruding part in the notch on the case
Dale Sweger (TH-cam) is a master of those kickers. That stop is famous for rotating on the kicker shaft, which isn't good
Thanks Tom, yeah I watch Dale. His videos have been a huge help
I would love to have a 175 painted up like a 1971 yamaha 60
I love this bike.if i had one i might put a 21 inch front wheel and a compression release .everybody had a compression release on 2 strokes works like a jake break and sounds cool
I have a DT2 that has the 21” front wheel conversion done. Since this has the high fender it would be a good candidate for the same!
Big fan of the 175 Yams. I’m a fellow Pittsburgher, would love to link up and do some riding.
Right on! What area are you from?
@@Garage2Trail South Hills - Peters. Actually saw your Suzuki DR pop up on Marketplace, good luck with sale.
@IndianGiver350 thank you! I’m in the north hills….other side of the tunnels 😆
@@Garage2Trail nice out that way
I had one back in the 70s ,it was a worn out unit and I hated it and gutless as hell,a cr 125 would destroy those,I would not spend a hour on one but all this old stuff is in demand now to a degree.
Wow, those clutch steels are scorched!
Yeah this thing was ridden hard before I got it!
Cool!!
Yeah! Old cardboard for bolt placement Can't beat it.
I don’t know how people know where the different sizes bolts go when they don’t use it! 😆
cool bike
Thanks Jeff!
Stumbled across your channel. I've restored so many ct3 I build them with my eyes closed LOL.I seen this bike on facebook for sale. I knew there'd be some problems. Hope you didn't pay to much for it , I restore 1968 76 yamaha enduros A lot of my bikes have been on Display at New england motorcycle museum Kaplan cycles. Going to check out your next video.See how this goes.
That’s awesome! I watch Kaplan all the time and I actually met him at mid Ohio 2022 and sold him a ‘77 XL125 that I fixed up! Where are you from? I picked this one up at mid Ohio this year. I knew I had some work ahead of me but I enjoy it and like learning about these old bikes.
I'm from Rhode Island. I've been friends with Ken junior for a while now He has a passion for these bikes. I've been seen and mentioned in many of his videos.
@@marcelmorin90 wow, now that you mention it, I do remember them mentioning “Marcel”. Very cool 👍
Nice find with your $50 gold mine
Thanks Paul! It was pretty lucky to find it the day that I found out the right side case was toast.
Shame that Yambits are in the UK - hopefully you can source all in the USA .....
Yup, I’ve found pretty much all that I’ll need NOS too. Some off eBay and some off Rocky Mountain ATV
Brilliant :-)!@@Garage2Trail
Oh, try electrolosis to clean tank .... vinegar is acid so more prone to cause a flash rust after cleaning .....
Yam sold a lot more in the U.S. than in Europe.
Yeah I'm not sure but I don't think you can use one side of the case. I think they come from the factory as a pair so you would have to use the same cases
Thanks Josh, that was a concern of mine but a friend of mine that’s a retired Yamaha mechanic from the 70s assured me the other side would be ok to use. I already mated them up to eyeball it before I start reassembling it and it looks good. I appreciate the heads up though!
I was going to make a similar comment but l think if you assemble them with the major shafts turning freely that usually means they're a good enough match.
Love your channel. Hey do you still have that Aermacci H-D SX 250 you got going?
Thanks Pete! That SX250 actually belongs to my friend. He still has it!
@@Garage2Trail I totally love that bike. You did a comprehensive job getting that one going. I love those old Italian Harleys. When I find one I am going to turn it into a flat track racer.
Got Dale Sweger TH-cam channel he works on a lot of these. He shows you a video on what the problem is on this one.
I’m one of his subscribers and have seen his CT3 videos. Very helpful to know what I’m getting into here. I’ll be watching his assembly video again here in the next couple days
Don't you just love phillips screws?
Lol oh yeah!
No. Try using the proper Japanese spec screwdrivers. I only found out about them 30 years too late.
That is a JIS impact screwdriver
Check out,dale sweger,his channel has a comprehensive playlist on how to repair a ct3.
I follow Dale on TH-cam! He’s got some very helpful videos and I’ve watched his CT3 stuff a few times to see what I was getting into.
@@Garage2Trail I had to fit a new clutch to my 73 dt175 & I found it very helpful,after having to get another carb because the original wouldn’t stop leaking,I managed to get another carb ,rebuilt it,& for a 175,it really flies,considering I’m used to a 1200 bandit & a Suzuki gt750,I reckon I have a keeper here
Hi mate, so where do you source a clutch for these models nowadays?
I’d like to buy one and restore the same as you, but concerned about getting parts
Cheers Dav
Hi Dav, I was able to find the clutch plates on eBay. 3rd party of course but they will work. I think you can still get OEM clutch plates. I got a bunch of OEM Yamaha seals and bearings off rockymountainatvmc.com. Check them out. There is an OEM section on their site that lets you search almost every bike made. Mainly from the big 4 Japanese manufacturers.
@@Garage2Trail many thanks, that’s a great help. Cheers
@@davtreloar9236 🍻
I’m guessing you’re in the US? I’m in Australia
@@davtreloar9236 yessir
Oops - yup, reeds are better.
Errrr, why didnt you put the parts motor into the bike? This bike is already not worth a lot IF the original motor in it was a mishmash/MX version. It won't be matching numbers so not worth a lot. I would have just rebuilt the parts motor and put the whole thing in, it would have been closer to original then......
Because it was rusty and the bearings were shot
@@Garage2Trail But if you were going to rebuild it, what did that matter?
@NB-nu5vn that’s what I was thinking. What would it matter if I stole the right side crank case from a motor that has rusty bearings and crank to revive another classic Yamaha with clean bits?