88cc Big Bore Honda Z50
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- Опубликовано: 28 июл 2019
- Installing an 88cc Big Bore kit on a 1978 Honda Z50A. I also changed some seals and gaskets and upgraded some bolts to allen bolts. To purchase these same parts see the links:
Big Bore Kit: www.ebay.com/itm/Honda-Z50-XR...
Gaskets: www.ebay.com/itm/Engine-Gaske...
Seals: www.ebay.com/itm/5PCS-Oil-Sea...
Bolts: www.ebay.com/itm/HONDA-CRF50-... 
Авто/Мото
The "phillips head" screws on that Honda- and most other Japanese stuff are actually JIS or Japanese Industrial Standard head. The JIS and Phillips heads are slightly different. Using the correct JIS screwdriver or tip makes removal much easier and can minimize any damage to the screw head.
True. But good luck removing 40 plus year old screws from a motorcycle case without using an impact driver. JIS or othetwise.
True. But good luck removing 40 plus year old screws from a motorcycle case without using an impact driver. JIS or othetwise.
Nice video, was exactly what I wanted to see before I do the same thing to my 1974.
Looks nice, you did good job making it look stock but better than it was originally.
Sounds just like a big bore thumper! Awesome! Add an extended swing arm and your ready for some serious hill climbing!
So dope! I plan on doing this soon!
On these engines it also pays to clean out the centrifugal oil filter. The filter screen just takes care of the big parts, but the finer parts are in the clutch. It is located in the clutch under the little plate secured by three or four screws. ruclips.net/video/gNRkMZlphnU/видео.html has them both in view.
Subbed for more small bore honda goodness!
Super cool! People could have a real monster of an engine if they did some major porting and polishing.
If you use a CT70 head or race head you get more high end power.
Right on, about to add an 88cc to one of mine.
Highly recommended, the 88cc kit is a lot of fun!
I was wondering if you can tell me how to read a vin # on a Z50A. It's a 1970's with rear shocks. Thanks. Great video. ✌
Im late to the video but how did you get it past the bottom ring i can get my compression rigs pressed in enough but those bottom rings dont want to go in the cylinder
Hi..I'm really glad I came across your vidd..I was wanting to put a big bore Kitt in my 69 Z-50 hardtail and was wondering what big bore kits were out there?? I wanted to ask u if this 88cc kit u put on ur 50 was the biggest kit made for the Z-50 ?? I'm guessing it is?? And in ur vidd you said it came with a upgraded carb and Jett kit.. my question is the jet that came in the new carburetor was to lean from the gett go?? And u then putt a bigger jet I'm it?? Does the carburetor kit that comes with the bigg bore Kitt come with multiple jetts?? And can u tell me what new size jet u put in ?? Then at the end of ur vidd u put octane booster in it and it looked like it really liked that xxtra boost. With putting the bigg bore kit in it do u have to always add the octane boost in it for it to run smoothly and not knock?? Or does premium gas work ok with no octane boost in it??? Sorry for the 100 questions..lol.. but that's great vidd and definitely helped me figure out what big bore kit to go with for my bike.. I also appreciate in advance u helping me with the answers to my questions.....take care and thanks again.......Ray
Nice bro, I found a junked z50r and fixed it up to OEM condition. It's the z50 R which is more of a race version but its very hard to find!
What year?
Bull crap. There in no "race version" of a Z50. Who ever told you that is full of crap. All Honda Z50's, no matter what year or model were for just plane ol fun!
The knocking could have just been your Valves warming up
What change do I need for the carb? Help!
Doesn't something need to be done with the valves when going up in displacement?
No
Warrior valves can need adjusted
hey mate I've got a
138cc big bore kit for my 125cc and I'm going to use the 125cc head do I need to adjust the valves
I always check em before I reinstall the head. .002”
Is there a cam for the older motor?
What twist throttle did you use?
How's it holding up? Did you do the high volume oil pump or heavy duty clutch?
Yup. 88cc kit is going strong!
@@ratinsurance2053 Putting an 88cc kit on "my" 86 TRX70 this weekend! I mean the "grandkids" TRX 70!!! Gonna dig in tomorrow and if there are no problems, it should be back running Sunday.
What carb and jetting are you using?
Lol never mind. I commented before you said it at the end.
Very cool . I have 2 of these now and I’m wondering where you found parts? If you don’t mind sharing the websites or places you used besides eBay I would really appreciate it . I think both mine are gonna need rebuilt and reworked and I’m gonna need lots of parts
links to everything I used is in the description.
Did you install the increased oil pump parts too?
yes, highly recommended. HD clutch too.
@@ratinsurance2053, did the oil pump but not the clutch. Didn't know about that. It was a great install on my 1986 Honda TRX 70 and now that thing is a ripping little S.O.B! Best upgrade ever!
Why did it look like the compression rings were in the opposite places.
they appear to be in the wrong order to me.....chrome/silver ring on top
The flat black one looks white around the edges. Depending on what kit you buy it's always good to look up what order the rings go in. According to TBparts the flat black ring goes second from top and the shiny one goes on top.
@@ratinsurance2053 Yes, the black ring is sharp on the edges and must be positioned as second ring.
Good video. What size carb is it? Thinking of doing the 88c upgrade on my Z50j.
Thanks James, the kit comes with a 20mm carb, the link is in the description.
@@ratinsurance2053 were you able to reuse the stock throttle cable and throttle housing?
Brent Doig no. The stock cable was frayed and only giving me 75% throttle. I need to get a twist throttle from TBolt
How fast is it ?
About 40mph depending on gearing
barley hear you music way to loud