I continue to be amazed by the quality video you produce and yet seemingly so few people give you a thumbs up! Wish I could give you Two! Thanks for posting - I just pulled an F7 motor out of the frame to go thru it so your record of restoring this bike is invaluable. Thanks for posting
Thanks Alex, and thanks for the two thumbs up. I just don't like to bother folks about the subscriptions and the thumbs up. I get my fair share of thumbs down also. Think it just goes with the territory. Can't please everyone, I guess. Thanks for the feedback on the video quality, I am trying some new stuff, 4K seems to be a good improvement.
Frankly I find your stuff very well done, I have very little difficulty understanding what you're trying to describe and the video quality to be excellent. Of course it's stuff I'm very interested and kind of invested in so that makes me a bit biased I guess. I've fabbed up stuff based on your channel such as the two stroke leak down tester which worked a treat when restoring a KH400 Triple and as noted the control cable birdcaging thing. I'm planning to make a couple to see if they'll sell on E-Bay - we'll see how that goes as they'll be much cheaper than the units out of Britain! I do understand a bit how much work and time goes into filming, editing and putting out these videos and am amazed that you find the time along with MANY others I'm sure glad you do. @@montana2strokeracer
Dale: for a new channel your video quality is excellent. In the heyday of 2 stroke evolution, I attended ACFT mech school in Southern CA. I had to split the cases on my striped down 175 Ossa Wildfire on the utility room floor. It had less than half the parts of your F7. As the 2 stroke revolution progressed and I got a good-paying job. I was able to upgrade machinery every few years and didn't ride hard enough to break anything. I wish I still had some of the old iron It was light and fast but so was I then.
Thanks John, I am trying to improve some of the video and audio as I go along. Thanks for your feedback on that. Boy starting out on TH-cam is ruff, been at it 3 years now, really slow getting views and sub's. I know the feeling, wish I had almost all my old iron back, it was really a good time with lots of innovations. Glad I got to grow up during the hay day. It's amazing the stuff coming from the factory then, now......I don't think Suzuki is even into racing anymore. The others not like they were then. I also never raced hard enough to break much, guess I knew if I did, I would have to pay to fix it, and yes, I was much leaner then too.
Back then we struggled to remove the screws found on most Japanese bikes. come to find out they were not Philips but JIS (Japanese Industrial Standard) It was years before I figured that out. They even sold socket head screw kits to replace the soft original ones.@@montana2strokeracer
Thanks Dale , Great video ! Wow it really brings back memories working on the Kawi's . I forgot all those bikes had straight cut gears . I had a 238 green streak back in the day , I loved that bike .. Thanks again Dale .
Thanks, man bet you wish you had the 238 back. I remember those.... they were fast. The one I wish I had never sold was the 79 RM400. Probably couldn't start it today, but it was a nice looker. Getting ready to build a 78 RM250 from a box of parts. Not sure how that will go. Just can't find or afford a complete bike.
@@montana2strokeracer Hey Dale , That 238 was a kick in the butt in the desert chasing jack rabbits . Lots of torque . By the time the RM's came out I was working at a Yamaha dealer and had quit racing and cow trailing . So you have a basket case RM 250 , that sounds like a project , I think you like the tough ones . Should make a good video .
Good job as usual Dale!! The poppet valve in front of the crank is for purging an over oiled condition. It can fail in a way that causes extra air/lean/seize, not common but deserves extra attention, I think it does its magic when the engine is cold started but not sure, research is required. And yes, cleaning the motor before disassembly saves a lot of time and hand washing lol.
What a cool video. Still amazed how screws, washers and more just go into a can or cup and you know exactly where they go -even using video! Nice dive into an old rotary valve Kawasaki. How you keep track of all these projects is a mystery.
Thanks Jim, oh well, I'm sure I will be sorting out the screws before reassembly. LOL! I have the video to refer to before and during assembly, so I always recommend taking a video or at least lots of pictures. Oh, it's not really a mystery. I just keep everything separated and make notes of where I am too pickup when I return to the project.
These engines have a pulse pump on the front of the engine below the front motor mount. There is a diaphragm that fails and creates an air leak. - The pulse pump sucks fuel from the bottom of the carb cavity.
Where do you find your f7 parts I just got a hold of one I believe is a 72 175 that needs every cable and a carb kit at the very least. Hopefully you will see this it’s worth a shot
Hey Kade, I guess the best answer is anywhere you can find them, Kawasaki's just were not produced in the quantity that the other Japanese brands were. The parts are just not as easy to come by, but they are out there. I look at my local motorcycle salvage yards, Ebay, and of course from Kawasaki. Some of the Kawasaki forums on Facebook are a good source also, but you have to be careful buying from them because there are lots of scams out there, so be careful doing that. I think you will be able to find the cables, but if not, I make a lot of my own cables, you could check with your local motorcycle shop they may be able to make them for you. Normally you don't need a carb kit, usually all that is needed is a new bowl gasket and maybe a needle and seat. Those you can probably find either from Mikuni or your local dealer. The thing with aftermarket carb kits is they don't have sizes stamped on the new jets and other inside parts. So, you don't know if they are right or not. I like to keep all the original parts if possible. Try looking for your model at Partszillia.com or Rockymountainatv/mc.com
My o ring on the rotory valve seal collar was hard and old on the crank as it was bad leaning the engine out ,leaking air make sure you put a new ring in there, alot of pressure there,on that I o ring seal on the valve shalf, Important ,so not to get any pressure blow bye
Hi Dale. I may be pushing it but you are pretty savy. I have an original'71 F7 and at 45 mph the motor is pretty high in rpm. Have not found a rear sprocket more than maybe two teeth less which isn't much help. These motors have great torque and can handle or pull with a smaller rear sprocket making it more streetable. Any idea what other bike's rear sprocket with say 5 or more teeth less than the original that would bolt on? If no idea, thanks for the F7 video's, great work as always from you. Dave.
Hey Dave, no problem, you can contact these guys they will make you anything you want, just takes money don't you know. Or.....you can just buy the size sprocket you want for say a Yamaha, you know it's got to be the same size chain pitch also. Then clamp your new and old sprocket together and drill the holes in the new sprocket to match the old ones. I did a video on this on the YL2C Yamaha, if you would like to see what I did. sprocketspecialists.com/
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Thanks Dale. Good to see you back on the F7!
Cheers, Peter.
Thanks Peter, its been a long time coming. Lot of folks like the Kawasaki's.
I continue to be amazed by the quality video you produce and yet seemingly so few people give you a thumbs up! Wish I could give you Two! Thanks for posting - I just pulled an F7 motor out of the frame to go thru it so your record of restoring this bike is invaluable. Thanks for posting
Thanks Alex, and thanks for the two thumbs up. I just don't like to bother folks about the subscriptions and the thumbs up. I get my fair share of thumbs down also. Think it just goes with the territory. Can't please everyone, I guess. Thanks for the feedback on the video quality, I am trying some new stuff, 4K seems to be a good improvement.
Frankly I find your stuff very well done, I have very little difficulty understanding what you're trying to describe and the video quality to be excellent. Of course it's stuff I'm very interested and kind of invested in so that makes me a bit biased I guess. I've fabbed up stuff based on your channel such as the two stroke leak down tester which worked a treat when restoring a KH400 Triple and as noted the control cable birdcaging thing. I'm planning to make a couple to see if they'll sell on E-Bay - we'll see how that goes as they'll be much cheaper than the units out of Britain! I do understand a bit how much work and time goes into filming, editing and putting out these videos and am amazed that you find the time along with MANY others I'm sure glad you do.
@@montana2strokeracer
Excellent. Thank you.
Another learning class.
Keep it up Dale enjoy your work and learning from the master.
Thanks, Mark hardly a master though.
Dale: for a new channel your video quality is excellent. In the heyday of 2 stroke evolution, I attended ACFT mech school in Southern CA. I had to split the cases on my striped down 175 Ossa Wildfire on the utility room floor. It had less than half the parts of your F7. As the 2 stroke revolution progressed and I got a good-paying job. I was able to upgrade machinery every few years and didn't ride hard enough to break anything. I wish I still had some of the old iron It was light and fast but so was I then.
Thanks John, I am trying to improve some of the video and audio as I go along. Thanks for your feedback on that. Boy starting out on TH-cam is ruff, been at it 3 years now, really slow getting views and sub's.
I know the feeling, wish I had almost all my old iron back, it was really a good time with lots of innovations. Glad I got to grow up during the hay day. It's amazing the stuff coming from the factory then, now......I don't think Suzuki is even into racing anymore. The others not like they were then. I also never raced hard enough to break much, guess I knew if I did, I would have to pay to fix it, and yes, I was much leaner then too.
Back then we struggled to remove the screws found on most Japanese bikes. come to find out they were not Philips but JIS (Japanese Industrial Standard) It was years before I figured that out. They even sold socket head screw kits to replace the soft original ones.@@montana2strokeracer
Hey Dale. just got here, got my cup of hot tea and watching.
Thank you Don.
Thanks Dale , Great video ! Wow it really brings back memories working on the Kawi's . I forgot all those bikes had straight cut gears . I had a 238 green streak back in the day , I loved that bike .. Thanks again Dale .
Thanks, man bet you wish you had the 238 back. I remember those.... they were fast. The one I wish I had never sold was the 79 RM400. Probably couldn't start it today, but it was a nice looker. Getting ready to build a 78 RM250 from a box of parts. Not sure how that will go. Just can't find or afford a complete bike.
@@montana2strokeracer Hey Dale , That 238 was a kick in the butt in the desert chasing jack rabbits . Lots of torque . By the time the RM's came out I was working at a Yamaha dealer and had quit racing and cow trailing . So you have a basket case RM 250 , that sounds like a project , I think you like the tough ones . Should make a good video .
Thank you Dale, will check out both possible solutions.
Interesting engine Dale. Looking forward to following the progress.
Best wishes, Dean.
Thanks Dean, sure appreciate you being along for the ride.
Hello Dale,I'm looking forward to this one for sure...
Thanks Larry, will try to do a good job with it.
Good job as usual Dale!! The poppet valve in front of the crank is for purging an over oiled condition. It can fail in a way that causes extra air/lean/seize, not common but deserves extra attention, I think it does its magic when the engine is cold started but not sure, research is required. And yes, cleaning the motor before disassembly saves a lot of time and hand washing lol.
Thanks for the info
What a cool video. Still amazed how screws, washers and more just go into a can or cup and you know exactly where they go -even using video! Nice dive into an old rotary valve Kawasaki. How you keep track of all these projects is a mystery.
Thanks Jim, oh well, I'm sure I will be sorting out the screws before reassembly. LOL! I have the video to refer to before and during assembly, so I always recommend taking a video or at least lots of pictures. Oh, it's not really a mystery. I just keep everything separated and make notes of where I am too pickup when I return to the project.
Those pointless ignition kits up grades are a real improvement on those f7s
great job as always dale looks to be a decant engine keep up the good work
Thanks Mark, I think it will be a good engine also.
These engines have a pulse pump on the front of the engine below the front motor mount. There is a diaphragm that fails and creates an air leak.
-
The pulse pump sucks fuel from the bottom of the carb cavity.
Thanks for the info, I have seen lots of folks just seal them off with a gasket and block off plate. So, they must be problematic.
Got to work, will catch up with you fellows later! Looking forward to it.
Ok Dean, I remember having to work, it put a real damper on my dirt bike hobby. But the money was nice and necessary for the hobby.
Great as always. Interesting engines. I have a friend in Florida who has Two Boyd and Stellings framed F9 350s
Thanks James, not familiar with Boyd and Stellings, must be similar to Champion in the flat track world.
@@montana2strokeracer exactly.
that one is in great condition Dale ! 👍👍
Not bad, just a few little weld jobs should have the cases back in order.
Dale you need a bigger parking lot, had to park 3 blocks away, phew! what a walk.
Yeah I know, I appreciate your hike this morning.
This one do the timming settings on the rotor valve please and thanks
On my TS75 the rotary valve is set with a simple alignment mark.
This one has a pin that locates it.
@@montana2strokeracer ok
Where do you find your f7 parts I just got a hold of one I believe is a 72 175 that needs every cable and a carb kit at the very least. Hopefully you will see this it’s worth a shot
Hey Kade, I guess the best answer is anywhere you can find them, Kawasaki's just were not produced in the quantity that the other Japanese brands were. The parts are just not as easy to come by, but they are out there. I look at my local motorcycle salvage yards, Ebay, and of course from Kawasaki. Some of the Kawasaki forums on Facebook are a good source also, but you have to be careful buying from them because there are lots of scams out there, so be careful doing that. I think you will be able to find the cables, but if not, I make a lot of my own cables, you could check with your local motorcycle shop they may be able to make them for you. Normally you don't need a carb kit, usually all that is needed is a new bowl gasket and maybe a needle and seat. Those you can probably find either from Mikuni or your local dealer. The thing with aftermarket carb kits is they don't have sizes stamped on the new jets and other inside parts. So, you don't know if they are right or not. I like to keep all the original parts if possible. Try looking for your model at Partszillia.com or Rockymountainatv/mc.com
My o ring on the rotory valve seal collar was hard and old on the crank as it was bad leaning the engine out ,leaking air make sure you put a new ring in there, alot of pressure there,on that I o ring seal on the valve shalf, Important ,so not to get any pressure blow bye
Looks small. 380?
Hi Dale. I may be pushing it but you are pretty savy. I have an original'71 F7 and at 45 mph the motor is pretty high in rpm. Have not found a rear sprocket more than maybe two teeth less which isn't much help. These motors have great torque and can handle or pull with a smaller rear sprocket making it more streetable. Any idea what other bike's rear sprocket with say 5 or more teeth less than the original that would bolt on? If no idea, thanks for the F7 video's, great work as always from you. Dave.
Hey Dave, no problem, you can contact these guys they will make you anything you want, just takes money don't you know. Or.....you can just buy the size sprocket you want for say a Yamaha, you know it's got to be the same size chain pitch also. Then clamp your new and old sprocket together and drill the holes in the new sprocket to match the old ones. I did a video on this on the YL2C Yamaha, if you would like to see what I did.
sprocketspecialists.com/
8 :44 PM
I hope you've been doing well, you and the wife.
Thanks Larry, we are well and doing fine.
What's that old ram air I see in the video of the f7 take down,,,380 or a 550 gt Suzuki ?
380
Hi Dale, what’s the tool called you used to hold the sprocket?
It's called a spanner wrench; I have a set of 3 or 4 can't remember. They are made by Williams.
Did that year have cdi? I don't remenber
Yes
They are hard to find
Got one now for sale in the area 1500.00
First
Always