I have a 73 ts250. Does anyone know why it vibrates violently on deceleration? It sounds like the piston is about to come out. It’s a very bad vibration.
Garrett Lampe You may have a tuning issue. Does it run like something is keeping the engine from revving freely? Maybe you can post a video of you riding it.
Are these easy to work on? I've found one not running for an amazing deal. I've taken apart 2 stroke motors and rebuilt carbs all day long and restored vesbas etc I'm wondering if this would be a good project bike the motor is not seized on the one I'm looking at also
Elliott Grossman They’re very easy to work on. An air-cooled piston-port two stroke is as easy as it gets for engine repairs. Parts aren’t very expensive either, when you can find them.
Hey Nate, I found a 1974 ts185 on craigslist for $500. It needs a new carb gasket, but besides that its in decent shape. This would be my first bike, I would mostly use it around town and on back roads. Can I ask your thoughts or whether or not it would be a good buy? Yours looks great
Hey Bairdogg. I have always heard that the 185s were the best bikes to find. They have more power than the 125s and rev quicker than the 250s. It's a little of a 'best of both worlds' situation. I hope you get it! One word of advice, if anyone tells you to bypass the oil pump and mix oil into your gas... Don't do it. Most Suzuki's have CCI oil injection, it's excellent just the way it is. What's not to love about filling up at the pump and letting the oil pump mix itself. Anyways. I hope you link a video of you riding your first bike!
+Nate Larsh thanks for the response Nate, and for the advice. I will be sure to post a video of my first rides, whenever that may be. Still have to convince mom, even in college hahaha. Thanks again
This one will take me up and down hills at 60mph. I'm 225 lbs so 60 up hill is very decent. I think you could squeeze a few more mph with higher gearing. Of course this would sacrifice acceleration.
amishterrorist17 Premium 91 octane is the best I can do in my small town, this is what I usually like to use. Although E10 ethanol is controversial for use in all two-strokes, it really depends on your carburetor jetting. These old air-cooled engines do not have high enough compression ratios to fully benefit from high octane fuel. They sure do run better with premium fuel. I don't want to ignite a fuel debate in the comment section, so just keep in mind ethanol blended fuels were not readily available in the early 1970s.
+Nate Larsh yeah they are great but you were shifting too early off of that one stop sign, I always get close to the powerband when I shift if not on it. But those things are awesome
+cmh trucks (chris trucknation) I agree completely, the power band is fun. However, I feel it's important to vary engine speed and avoid full throttle when breaking in a rebuilt engine. The crankshaft main bearings had only about 30 minutes of ride time since the rebuild over the winter.
Can I ask, what sort of range do you get out of your bike? I have a 76 TS250, and for the life of me can't get more than 60-65 miles to a tank of fuel. It's running amazingly well, not rich at all, so, I can't understand where all the gas is going. I take it to work 32 miles each way at ~65 and it just sucks the gas down.
I looked up your fuel capacity on bikez.com. They say you have a 2.25 gallon tank so your fuel mileage calculates 25-30 mpg. When taking into account that your tank would almost never be 100% empty, I think a tank of gas lasting 60-65 miles sounds about right for a 250 two-stroke with stock gearing @ 65 mph. I have checked fuel mileage on a few of my other two-stroke Enduro bikes. They seem to have the best range when they are ridden without a heavy load or wind drag. You will have an efficient RPM and the lowest amount of wind drag around 35-50 mph. I have gotten close to 90 mpg on a Yamaha DT125 with a fresh top end. A tight top end, premium fuel, the right air filter (clean) and slightly higher gearing may help your fuel mileage some. I would love to see a video of your commute. Send a link if you have a video!
Maybe that is what is normal for these bikes, then. Everything is stock on it, and the new piston and rings have only about 1000 miles on them now after I melted yhe last one, and the filter only had a few hundred on top of that. Always run 91 now after rebuilding it due to predetonation. Might have to bump up the gearing a bit to get a tad more range like you said. Thanks man. I don't have any videos of it yet, but, I'll record something and upload it for you. It's all through back roads and farmland, so, it's a great ride to work on the old bike. The only other thing I can think of is I'm running twin head gaskets to try and lower the compression. When I bought the bike it had a '76 head, but a '72 cylinder, which gave it a really high CR, and blew itself up the first time I took it on the freeway. I couldn't find a '76 cylinder, so I put a '72 on it, and double gaskets for safety. Wondering if the slight compression drop would cause a drop in MPG.
I just got one of these and it’s starts sputtering at 5000 rpms have you had this problem and how did you fix it if you did? Any advice would be very appreciated. I have cleaned the carb it was pretty bad but it did not totally resolve the issue.
You should NEVER bypass the oil injection and use premix in the fuel tank. A Suzuki with CCI oil injection will not last longer than a few minutes. I use Lucas 2-cycle oil (or any other brand) from the auto parts store, put this in the oil tank under the seat. Use motorcycle engine oil in the transmission (fill hole on the side of the engine). Use premium unleaded fuel in the tank. If you have any questions, feel free to ask!
@@natelarsh6228 I got 1000 miles on my bike since I removed the injector and started running premix. It still sounds the same and runs just as well as it used to.
Thank you Sam! I replaced the crank bearings and seals over the winter. It runs much better with fresh main seals. This was the first real ride after engine break in!
That thing is so beautiful! One of my favorite bikes on the planet, I was never a big Suzuki fan but that bike is so dope! Sounds really good too!!
Sounds amazing! Very smooth.
Thanks for the ride, I had a new 74 and put 13 k miles on it in one year !! traded it and a 73 GT380 for a new 75 GT380
I have a 73 ts250. Does anyone know why it vibrates violently on deceleration? It sounds like the piston is about to come out. It’s a very bad vibration.
sure is a lot of car traffic out there, here in Fairfield CT cant go 25 ft without some one pulling out in front of you. cool ride.
lol I find myself looking for 6th gear a lot... your bike sounds great
I have the same year but I only can get 40 mph tops what is slowing mine down sooooo much?
Garrett Lampe You may have a tuning issue. Does it run like something is keeping the engine from revving freely? Maybe you can post a video of you riding it.
Are those mirrors Chromed? If so how was it done b/c I heard you basically have to bust out the mirrors to take them apart?
Are these easy to work on? I've found one not running for an amazing deal. I've taken apart 2 stroke motors and rebuilt carbs all day long and restored vesbas etc I'm wondering if this would be a good project bike the motor is not seized on the one I'm looking at also
Elliott Grossman They’re very easy to work on. An air-cooled piston-port two stroke is as easy as it gets for engine repairs. Parts aren’t very expensive either, when you can find them.
Hey Nate, I found a 1974 ts185 on craigslist for $500. It needs a new carb gasket, but besides that its in decent shape. This would be my first bike, I would mostly use it around town and on back roads. Can I ask your thoughts or whether or not it would be a good buy? Yours looks great
Hey Bairdogg. I have always heard that the 185s were the best bikes to find. They have more power than the 125s and rev quicker than the 250s. It's a little of a 'best of both worlds' situation. I hope you get it! One word of advice, if anyone tells you to bypass the oil pump and mix oil into your gas... Don't do it. Most Suzuki's have CCI oil injection, it's excellent just the way it is. What's not to love about filling up at the pump and letting the oil pump mix itself. Anyways. I hope you link a video of you riding your first bike!
+Nate Larsh thanks for the response Nate, and for the advice. I will be sure to post a video of my first rides, whenever that may be. Still have to convince mom, even in college hahaha. Thanks again
Can you keep up with traffic? Mine is being restored and I'm guessing these can only do about 70mph right?
This one will take me up and down hills at 60mph. I'm 225 lbs so 60 up hill is very decent. I think you could squeeze a few more mph with higher gearing. Of course this would sacrifice acceleration.
+Nate Larsh what about fuel? Do you using normal pump (87,89,91,93) gas or fuel with no ethanol? Was curious if it runs okay with the ethanol.
amishterrorist17 Premium 91 octane is the best I can do in my small town, this is what I usually like to use. Although E10 ethanol is controversial for use in all two-strokes, it really depends on your carburetor jetting. These old air-cooled engines do not have high enough compression ratios to fully benefit from high octane fuel. They sure do run better with premium fuel. I don't want to ignite a fuel debate in the comment section, so just keep in mind ethanol blended fuels were not readily available in the early 1970s.
Gotcha, thank you for the feedback!
I have the same bike and I'm 13 1979 ts250
Hey CMH. Do you have a video of your bike? I'd like to see it in action.
they are very fun
I like it much more than the 125 I had. I'm 6'2" 225lbs so this one pulls me up the hills a little quicker.
+Nate Larsh yeah they are great but you were shifting too early off of that one stop sign, I always get close to the powerband when I shift if not on it. But those things are awesome
+cmh trucks (chris trucknation) I agree completely, the power band is fun. However, I feel it's important to vary engine speed and avoid full throttle when breaking in a rebuilt engine. The crankshaft main bearings had only about 30 minutes of ride time since the rebuild over the winter.
What’s the top speed u think?
Can I ask, what sort of range do you get out of your bike? I have a 76 TS250, and for the life of me can't get more than 60-65 miles to a tank of fuel. It's running amazingly well, not rich at all, so, I can't understand where all the gas is going. I take it to work 32 miles each way at ~65 and it just sucks the gas down.
I looked up your fuel capacity on bikez.com. They say you have a 2.25 gallon tank so your fuel mileage calculates 25-30 mpg. When taking into account that your tank would almost never be 100% empty, I think a tank of gas lasting 60-65 miles sounds about right for a 250 two-stroke with stock gearing @ 65 mph. I have checked fuel mileage on a few of my other two-stroke Enduro bikes. They seem to have the best range when they are ridden without a heavy load or wind drag. You will have an efficient RPM and the lowest amount of wind drag around 35-50 mph. I have gotten close to 90 mpg on a Yamaha DT125 with a fresh top end. A tight top end, premium fuel, the right air filter (clean) and slightly higher gearing may help your fuel mileage some. I would love to see a video of your commute. Send a link if you have a video!
Maybe that is what is normal for these bikes, then. Everything is stock on it, and the new piston and rings have only about 1000 miles on them now after I melted yhe last one, and the filter only had a few hundred on top of that. Always run 91 now after rebuilding it due to predetonation. Might have to bump up the gearing a bit to get a tad more range like you said. Thanks man.
I don't have any videos of it yet, but, I'll record something and upload it for you. It's all through back roads and farmland, so, it's a great ride to work on the old bike.
The only other thing I can think of is I'm running twin head gaskets to try and lower the compression. When I bought the bike it had a '76 head, but a '72 cylinder, which gave it a really high CR, and blew itself up the first time I took it on the freeway. I couldn't find a '76 cylinder, so I put a '72 on it, and double gaskets for safety. Wondering if the slight compression drop would cause a drop in MPG.
Can i ask yall what oil yall use. I'm having a hard timefiguring that out. it looks like there are2 places to a put it and do i need to mix the gas?
I just got one of these and it’s starts sputtering at 5000 rpms have you had this problem and how did you fix it if you did? Any advice would be very appreciated. I have cleaned the carb it was pretty bad but it did not totally resolve the issue.
Austin Watson Hi Austin, I somehow missed your message. Sorry about that. Are you still having sputtering issues?
Nate Larsh I got it fixed it was the needle jet letting in to much fuel as the throttle opens
What oil do i need to put into the gear box and the container on the side of it? and do i mix the gas
You should NEVER bypass the oil injection and use premix in the fuel tank. A Suzuki with CCI oil injection will not last longer than a few minutes. I use Lucas 2-cycle oil (or any other brand) from the auto parts store, put this in the oil tank under the seat. Use motorcycle engine oil in the transmission (fill hole on the side of the engine). Use premium unleaded fuel in the tank. If you have any questions, feel free to ask!
thanks man
@@natelarsh6228 I got 1000 miles on my bike since I removed the injector and started running premix. It still sounds the same and runs just as well as it used to.
jjhack3r What year and model is your bike?
@@natelarsh6228 1975 suzuki TS185
Do you have a key for the ignition ?
Yea 2-Stroke Folk, it has an ignition switch on the left side near the gas tank. Did you lose a key?
like a russian 2T bike "ИЖ-Jupiter"
Street legal!
cool
Thank you Sam! I replaced the crank bearings and seals over the winter. It runs much better with fresh main seals. This was the first real ride after engine break in!
That bike was stolen
What makes you say that?
@@natelarsh6228 are you in the uk
Iowa, United States
@@natelarsh6228 wrong bike sorry pal