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KAWA238 Started a new thread 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
8/15/2021 6:03pm This thread is a start-to-finish build log and a place for me to refer back for where I got parts, part numbers, etc. as well as to hopefully provide and expand online reference info for this bike, as I have not come across very much online for the Kawasaki green streak in terms of building resources. Constructive criticism and insight...
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KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
8/15/2021 6:03pm
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KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
8/15/2021 6:01pm Little update on the bike. Replaced the condenser and took the bike camping for the weekend. It rips. An absolute blast. Rode long and hard with no 
issues at all!
issues at all!
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
7/13/2021 1:49pm That could be. I know the coil, points and condenser are n.o.s. and recently installed, but It did seem like the spark was weak with the most recent plug when I tried it, maybe the 20 minute wait for my wife to bring me another plug was just long enough or everything to cool down and work again. Thanks for...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
7/13/2021 10:33am
BR9HS on the left, plug that I put in after installing dialed-in carb, rode for about 30 minutes with it at a play area then while cruising on a dirt road for a bit the bike cut out and died and would not restart. The tip: 
The B9HS on the right is the plug my wife brought me...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
7/13/2021 10:05am I am suspecting the bike is a bit rich still. I will take a look at the plug I pulled from yesterday. According to the service manual I suspect my 0-1/8 throttle opening is rich (hard/ boggy starting) and my 1/4-3/4 is rich (fouling plug when riding).... The manual notes that adjusting pilot air screw and jet needle clip is...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
7/13/2021 9:54am Okay, I have taken the bike on 2 rides. The first ride it seemed like it was bogging out alot. I spent about 6 hours yesterday setting up a f21m green streak carb I bought on eBay a while ago. The f21m and the f4 share the same Mikuni VM28SC carburetor, with the difference being the F4 carb has a...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
7/10/2021 1:27pm Went for the first ride today! The bike is a blast!!! 
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
7/8/2021 3:54pm
Now I'm down to adjusting all the cables, putting locktite on the rest of the applicable hardware and hooking up the front brakes!
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
7/8/2021 3:51pm Also updated the foot pegs! No more having my feet slip off the pegs! 
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
7/8/2021 3:48pm Okay, time for some updates! Been really busy! Long story short, I found another f4 sidewinder to use for parts. Turns out the f5 rear wheel will not work. The brakes couldn't hook up or anything. Happy to save someone else the headache! Luckily, the kx500 rear brake shoes I found fit the F4 rear wheel, so that is awesome...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
4/14/2021 11:25am Here is how it's sitting now, I just need to wire up the ignition system and bolt the rest of the pieces on. 
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
4/14/2021 11:22am Hey man. This is awesome. I need to make some updates on here, I'm getting married in a couple weeks, so I have been a little too busy to work on the bike. I am really interested in specifics for the rules and stuff, I have reached out a few times to try to get a ahrma mentor with little...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
2/21/2021 7:16am Rebuilt the clutch with new friction plates and springs, and installed the engine! I also installed CR high bend bars. 
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
2/7/2021 1:14pm Here is the bike all together so far!! 
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
2/7/2021 1:11pm I happened across a very worn out 1968 kawasaki 120ss for sale a few weekends ago: 
A little historical knowledge: The red tank f21m with the kawasaki aircraft logo and knee pads was only made for one year in 1968, then they went to the same shaped green painted tank after that without the badges or pads. Many people...
A little historical knowledge: The red tank f21m with the kawasaki aircraft logo and knee pads was only made for one year in 1968, then they went to the same shaped green painted tank after that without the badges or pads. Many people...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
2/7/2021 12:56pm I emailed some contacts I have at AHRMA on eligibility for the classic class, and they are gonna look at it and get back to me regarding this specific bike. The geronimo 250 is also listed as an eligible bike for that class, but the wording makes it hard to tell if mine will be eligible. It will be interesting...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
2/7/2021 12:46pm Time for an update! I've been busy, but working on the bike too! I had to do a lot of machining on my swingarm and turn some new bushings to center the back wheel again, after my f5 bighorn axle adjusters and other parts showed up and I got them cleaned, I realized that the f5 rear axle is Much...
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
1/21/2021 8:14am Awesome! I like the idea of that change, and will probably do that to the orifices since I have everything apart right now. Curious on the emulators, what specs do I need to have worked out before talking to race tech, or is there a prebuilt emulator for these forks?
KAWA238 Added a reply to 1969 kawasaki F21m green streak -style vintage mx AHRMA low budget build
1/20/2021 6:46pm Very neat information. I think I will be saving for the NJB experts. In the meantime, I will put everything together and do as you suggest and decide how I want the front set up. It will also be interesting to see what my wheelbase will be and what I have to work with. According to the classic class AHRMA...