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Old 01-27-2011, 09:31 AM   #1
runpasthefence OP
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Yamaha DT175 vs. DT250

So, I need a beater/project and a reasonably sized bike to teach my lady how to ride.

In a past life I was an outboard mechanic, and I've never owned a two stroke bike...so I'd like to make this my first.

I've narrowed it down to the DT175 and 250. It'll likely serve as a learner bike for my better half, but will eventually turn into either something that resembles a dirt tracker or maybe even something more street oriented (depending on where I live in the next couple of years).

Anyway, since I've never even seen one of these bikes...are there any significant differences between these two models? Seat height, frame size, weight, engine/drivetrain issues?
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Old 01-27-2011, 10:01 AM   #2
Suzuki Phil
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Quote:
Originally Posted by runpasthefence View Post
So, I need a beater/project and a reasonably sized bike to teach my lady how to ride.

In a past life I was an outboard mechanic, and I've never owned a two stroke bike...so I'd like to make this my first.

I've narrowed it down to the DT175 and 250. It'll likely serve as a learner bike for my better half, but will eventually turn into either something that resembles a dirt tracker or maybe even something more street oriented (depending on where I live in the next couple of years).

Anyway, since I've never even seen one of these bikes...are there any significant differences between these two models? Seat height, frame size, weight, engine/drivetrain issues?
I just purchased a 78 DT125 to restore and ride. My mom bought two of these in 1977, one for me and one for her. Easy to ride and lightweight.



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Old 01-27-2011, 10:39 AM   #3
stainlesscycle
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Quote:
Originally Posted by runpasthefence View Post
Anyway, since I've never even seen one of these bikes...are there any significant differences between these two models? Seat height, frame size, weight, engine/drivetrain issues?
for all intents and purposes, they are the same bike. well built and a good learner bike. i've had several people learn to ride on my ct175..
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Old 01-27-2011, 04:35 PM   #4
exoff-roadgoat
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Everything on the 175 is smaller, frame, forks, engine cc. I would get the 2 fiddy.
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Old 01-27-2011, 06:37 PM   #5
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Everything on the 175 is smaller, frame, forks, engine cc. I would get the 2 fiddy.
get the 250 or even better a 360
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Old 01-27-2011, 07:44 PM   #6
JeffS77
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also check out

www.yamahaenduro.com


for all your vintage yamaha enduro needs/questions
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Old 01-27-2011, 08:34 PM   #7
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Originally Posted by exoff-roadgoat View Post
Everything on the 175 is smaller, frame, forks, engine cc. I would get the 2 fiddy.
I agree, if you want to get the best for longer distances the 250.

The 175 was the top of the 90/125/175 cc engine line, with the 250 the start of the 250/360/400 engine line. The 175's tended to see less abuse, but the 250's mechanicals were understressed even when abused.

You truly cannot go wrong with either choice (so buy what fits).
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Old 01-27-2011, 09:34 PM   #8
darmst6829
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Quote:
Originally Posted by runpasthefence View Post
So,

"I need a beater/project"

"I've never owned a two stroke"

"I've narrowed it down"

"I've never even seen one of these bikes"

issues?
Who needs a project? I suggest you let your lady do this thing or not.

Dave
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Old 01-28-2011, 07:04 AM   #9
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My wife learned on a 1980 DT175, In the recent past I rode a 78 DT175 and the wife now owns a 78 DT250, so I have a little experience on these.

The 175 is much more capable bike off-road. It is extremly light for what it is, good power, shorter, easier to start. The 250 holds freeway speed better (but I did commute 12 miles freeway on the 175 for over 3 months, it will do it, just not much left after 70 mph).

My 175 usually achieved over 60 mpg with "road" low of 58 and high of 66 (I do my calcs). The 250 is a much bigger gas hog. My wife achieves roughly 50 with the 250 in around town, little highway type riding. For the same type riding I never topped 40.

They did change the bikes dramatically in 77 and the 77-80's are my favorites (monoshock). the 77-78 175's are better than the 79-80's off road (they got squishy suspension in 79) and were just a bit better all around.

Good luck, lots of fun on those bikes! The DT125 was the same frame as the 175 so if you pick one up cheap that would also work.

Kenny
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Old 01-28-2011, 09:33 AM   #10
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Depends on year. The late 70's (monoshock) DT175MX was a much better bike than the overweight 250, and not just my opinion, it was more-or-less universally accepted as fact. It handled better, was just as fast & great fun all round. I had a 175 from new and have had 2 more over the years. I also had loan of a mates immaculate DT250 for weekend (back in the day) and it was only 75% of the 175 off road
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Old 01-28-2011, 02:08 PM   #11
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Lok at the power to weight ratio on both, youll be surprised! The 175 has like 5hp less than the 250 but weighs 80 lbs less or so and the 175 was SOOOO much more fun. I had both and the 250 was a pig off road and on compared to the svelt quick little 175...which was a far superior bike.
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Old 01-28-2011, 07:26 PM   #12
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Quote:
Originally Posted by mudgepondexpress View Post
The 175 is much more capable bike off-road. It is extremly light for what it is, good power, shorter, easier to start. The 250 holds freeway speed better (but I did commute 12 miles freeway on the 175 for over 3 months, it will do it, just not much left after 70 mph).

My 175 usually achieved over 60 mpg with "road" low of 58 and high of 66 (I do my calcs). The 250 is a much bigger gas hog. My wife achieves roughly 50 with the 250 in around town, little highway type riding. For the same type riding I never topped 40.

They did change the bikes dramatically in 77 and the 77-80's are my favorites (monoshock). the 77-78 175's are better than the 79-80's off road (they got squishy suspension in 79) and were just a bit better all around.

Good luck, lots of fun on those bikes! The DT125 was the same frame as the 175 so if you pick one up cheap that would also work.
Quote:
Depends on year. The late 70's (monoshock) DT175MX was a much better bike than the overweight 250, and not just my opinion, it was more-or-less universally accepted as fact. It handled better, was just as fast & great fun all round. I had a 175 from new and have had 2 more over the years. I also had loan of a mates immaculate DT250 for weekend (back in the day) and it was only 75% of the 175 off road
Quote:
Lok at the power to weight ratio on both, youll be surprised! The 175 has like 5hp less than the 250 but weighs 80 lbs less or so and the 175 was SOOOO much more fun. I had both and the 250 was a pig off road and on compared to the svelt quick little 175...which was a far superior bike.
Great info guys, I really appreciate it. I think this supports what I assumed about these bikes. I think the smaller 175 will suit our needs perfectly.

Looking at what specs I could find, I see there would be really no point in a 250 unless I got a smokin' deal on one. The 360 and 400 look to be the cat's ass, but the smaller bike has more appeal for what we'll use the bike for. I wonder how much weight I can shed off of a 175?

I found yamahaenduro.com via searching this site, and I haven't been able to open the site since I found it about a week ago. I'll have to check it out when I'm back stateside with some better internets.

Thanks again, now I'll just have to find one close to home.
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Old 01-29-2011, 07:09 AM   #13
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My girl friend/wife had a 175 and it was perfect for her and a blast for me. If someone is larger in stature, the bigger bikes are the way to go. How about a IT 200? Depending on state, most can be titled.
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Old 03-02-2013, 05:38 AM   #14
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I just picked a '80 DT175 for my wife to come on exploration rides with me, hell I might even use it for vintage cross country races.

Have yet to start it as the tank needs a good flushing from old gas. The condition is like brand new, not a spec of rust anywhere with only 3700km on the clock. All original equipment:)

After reading this thread it swayed me to the 175, 5Hp less and 80lbs lighter compared to the 250... yikes. Lifting the rear it feels very light can wait to feel the arm jerking power;)
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Old 03-02-2013, 08:08 AM   #15
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I would choose the 175cc version, as already said much lighter, much better to handle.

The autolube system is not so good, just for clogging the exhaust and the inerta of the cylinder, ...

l have started to rebuild my TY (which is beside the different frame geometrics pretty much the same model.

For the 175cc model are 200cc set's available. The cylinder gets a rebore and a bigger piston.

With a 200cc engine you will get more torque and slightly more power too. Anyway ... The increase of 25% capacity gives you a broader range of usable rev- band. Very helpful while riding.

The parts are easy to get but -for Europeans- not very cheap compared to other brands.

I personal would also rate the 175cc higher.

The only drawback I know are the tiny fork diameter, the fork feels flexible. I solved the problem by using the fork and fork clamps of the 250cc model.
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