1986 Honda Z50 Z50R Z50RD Engine - Tired Top End - Video 2 of 2

[@BarnabyBrittan]

Josh your videos are brilliant, you have a real gift for teaching and explaining better than anyone else in webland! Thanks so much, following these I am having a really enjoyable time restoring my Z50 Hardtail - cheers again dude

[@RandyCrum-bq3cp]

thanks you have put out best vidio with possible instructions a true teacher should use every time , the kids are going to be able to do the best jod the first time. Reminds me of my dad showing me,52 years ago

[@Mr10usdad]

Excellent video thanks for taking the time to be so detailed.

[@8180634]

At 4:25, the oil pump drive gear. We had one that was run really hard by kids and when we took it apart the oil pump drive gear was smooth, no teeth. I have no idea how that engine didn't die from lack of oil, maybe the chain dragging on it was enough to keep some oil flowing. The cam chain and sprockets were shot, it was skipping teeth which is why we took it apart. The cam chain drive sprocket on the crank is press-fit, it was pretty easy to pull off and hammer a new one on.

[@michaelsaint7325]

T Bolt USA is the best company ever! Very knowledgeable sincere owners they truly do try their hardest to be the best in pit bikes Great informational video THANK YOU!

[@stevebuckmaster13]

Great job Josh

[@davidmohr4004]

Excellent and helpful as always. Thank you.

[@andrewreynolds1605]

Thank you once again for another great instructional video, very clear and concise explanation throughout 👍

[@Rusioli]

I was a bit daunted about missing something with my top end re build. Thanks for a massive help with this video. Can you do a short video on how you wired it up for a bench run please. Thanks very much from the UK

[@robinbrowne5419]

I love these little Honda engines. They are built like a swiss watch. But my favourite are the 90cc ones since they have a bit more oomph :-)

[@cramersclassics]

Well done, especially the tips and tricks! No detail too important. Thank you!

[@christ6370]

This video left me with more questions. 1. Why does the front valve cover gasket stick up so high above the case? Poor quality kit? 2. Are the other gaskets crappy too? 3. Are there higher quality kits out there better than 2Fast? 4. How did you tension the cam chain? 5. How did you set the valves? 6. Is there a break-in process? 7. What's the compression guage show now on a fresh top end? 8. What's the leak down test show now? 9. Does the motor need to be re-timed? 10. Where would I find these answers?

[@brianseadoo8307]

Great video, thanks for the detailed information.

[@andrewraymond6223]

Thanks for another good video. Great quality and explanations.

[@jyjjackfast]

man did i ever need this. great info

[@prestonkeen8666]

Great video brought up a couple of technical questions I had I called the company and got more than enough advice type of business I enjoy working with

[@kevinturco9077]

I missed a head stud sleeve without it head gasket was not fitted properly. Thanks

[@maheshwarbhagan405]

Wow love this teaching thanks brother

[@be1121]

Great video!! Working on an SL70 at the moment

[@frankm2347]

Thank you for another great Video!!

[@eastcoastish]

Congrats on 1k subs!!!

[@jcobra09]

Great stuff man. Thanks

[@chuckchin5450]

As always good video

[@mrcleanisin]

Why different head gasket at 14:44?

[@IamSoloexplorer]

Great videos very informative you helped me do my first ever top end rebuild watching your videos. But I have a question, the cylinder head gets very hot I don’t know if this is normal I have a 70cc kickstart non cooling I haven’t done a proper piston breakin because I’m afraid the cylinder might crack from the heat. I see small amounts of white smoke coming from the cylinder covers. The rings I got did not have any marking so I just guessed on installing, I did offset all 5 gaps

[@burlymugg]

great stuff man, im in orlando too, might need a hand one day ha

[@VintageHondaMinis]

Swing on by that'd be cool

[@anthonyiuzzolino3984]

valve cover gasket upside down

[@dax-tobi]

nice!

[@thomasgrant91]

Same for ct 70 ??

[@hakosama]

Where can I buy the rubber seals as the kit I bought on Ebay didn't come with one?

[@VintageHondaMinis]

www.ebay.com/itm/282510366266?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=KDd7yWrGQlO&sssrc=2349624&ssuid=uTGlTzr8Qgy&var=&widget_ver=artemis&media=COPY

[@VintageHondaMinis]

Or a local Honda may have the parts

[@anthonyiuzzolino1554]

question for u......I have a 1971 z50 engine (short rod) that my buddy purchased a china 70cc top end kit just like this kit in your video but he has the short rod, can I just purchase an early 69-81 47mm 70cc piston to use this top end kit he purchased? or do you know what piston to use? the piston in the kit has to short of a popup it has the shorter pin to top of piston height

[@VintageHondaMinis]

There is no piston that you can just swap into that kit. You need to buy the piston for the short rod and the matching dome cylinder head. I know you can find one on 2fastMoto website it's called the old dome cylinder head and piston kit or something along those lines.

[@anthonyiuzzolino1554]

thanks for the fast reply but I went on 2 fast moto website and I dont see any heads at all for sale, do you know of another source for the proper early large dome head?

[@VintageHondaMinis]

@@anthonyiuzzolino1554 cylinder head for large dome piston - www.2fastmoto.com/2FastMoto-Honda-Large-Bore-50cc-Small-Bore-70cc-Cylinder-Head-COMPLETE-_p_1110.html

[@VintageHondaMinis]

@@anthonyiuzzolino1554 piston that will match cylinder head. Just use the Chinese jug you already bought with this std bore piston - www.2fastmoto.com/Honda-Z50-Z-50-Monkey-Bike-Piston-Kit-Standard-Domed-Rings-Pin-Clips-2FastMoto_p_96.html

[@anthonyiuzzolino1554]

Thanks again for the help I will buy the head you have linked but the piston is a 50cc I need the 47mm 70cc piston as the jug i have is 47mm bore

[@kapral_jedziniak]

Honda could learn from you how to do a workshop manual.

[@panagiotishatzis7304]

Nice work but you could buy a new cam sprocket because the old one is for recycling.

[@mobgma]

what do you charge to go through and do an 84 atc70 engine? thanks

[@VintageHondaMinis]

Hi - Call me. I have a pricing sheet an some other info I can provide. Josh 5402079170

[@edwardrahm5435]

Be careful with the step where he inserted the ring inside the cylinder prior to installing it on the piston. I tried this and the ring instantly broke, costing me a whole new set of rings and the time for order/delivery. Not sure that step is needed anyway.

[@VintageHondaMinis]

Sorry to hear ring broke. That is checking ring end gap. Don't skip that step

[@seffdog1177]

Loosening that bolt for the cam chain doesn’t loosen it at all, you missed 2 other steps

[@VintageHondaMinis]

I went all the way and loosened it up, just didn't film it. There are a few tensioner setups. Just giving the viewers the general info...

[@asifriaztheexplorer6587]

11:07 why do you cut video putting piston into cylinder I was waiting for that moment you'r not a professional