PUCH HERO Kit Porting

Puch_Hero_43.5mm_65cc_Cylinder_Kit_1_1024x1024.jpg

First time porting for me so I'm looking for advice specifically on the PUCH Hero 65cc 43.5mm hero massive port kit. I already have it, have had it for about ten years and never finished it. The time has come. So on to the first question, when Treats list this quote "the ports on this kit are so enormous that you must jb weld some over the case cause the transfers will leak out the side! If you're pro you will use weld on some additional material first, but if not, jb weld will do." Where does the JB Weld go? In 1-4 on the outer edges as illustrated in the attaches image or on 5 then filing to be made flush. Any other tips on this kit would be MUCH appreciated.

Re: PUCH HERO Kit Porting

No jb weld goes on the kit. Jbweld goes on your engine cases to make the existing transfer port area larger so you can open up the transfers to get something closer to what is on the kit. There are a few guys on here selling already done cases so you can port it as needed. Or you can prep your cases and send them off to get additional material added for ya. They are going to be adding actual aluminum to your case and not just jb weld.

Re: PUCH HERO Kit Porting

Totally normal JBOT /

Be careful how wide you go with the exhaust.

The ring gaps are on the sides of the exhaust which is fucking stupid. Go a lil too far and you’ll have to relocate the ring gap or snag

Re: PUCH HERO Kit Porting

Totally normal JBOT /

And also have fun with that cast inner. It’s so hard, Idk what alloy they used but it is V difficult to hog out

Re: PUCH HERO Kit Porting

tjhere a guy in buy/sell forum thats offering case welding serviecs. Much better solution than JBWeld.

found it: https://www.mopedarmy.com/forums/read.php?2,4506581,4506581,flat=1#msg-4506581

Re: PUCH HERO Kit Porting

Look for a magnumX case, or korado 3 bearing cases. They have enough material to case match. Other than that like said before don’t go too wide in the exhaust, just clean up the casting and smooth everything out, make the intake a hair bigger and as straight as possible and match the piston holes to the size of the boost ports. Real fun torque monster cylinders

Re: PUCH HERO Kit Porting

There's only one question you gotta ask yourself,

Do I feel lucky?

Well, do ya, punk?

Actually a couple questions: what are your goals for the bike? What's your experience level? What other parts are you going to pair with it?

Since you're asking the question, my guess would be this is out of your league, these kits are a huge pain in the ass. They are hard to cut, you gotta build up the cases, and I think they don't quite line up timing wise as well.

I usually build an engine and get it running well and broken in before I pull the cylinder back off to port it, get a baseline tune and feel where I want to gain power. My recommendation if you want to start porting is get either a cheap treats piston port or treats Reed kit. The reed is fun because they really wake up when you port them, you can feel gains right away from small changes and it's easy to tune with a vm20/techno estoril.

Also fun playing with stock cylinders. Don't rule that out.

Re: PUCH HERO Kit Porting

Jason Ellis /

Graham I will take your very sound advice. In fact I already have and ordered a treats kit so I don't have to add material to the case yet tinker all I want. I also appreciate the Clint Eastwood. The Hero kit is going to the buy/sell this afternoon. Enough bloodshed.

Re: PUCH HERO Kit Porting

What pipe are you going to run with this?

Re: PUCH HERO Kit Porting

todd amundson /

Go to a 70cc piston[attachment 254748 FCC15FC3-32E3-4EAD-848D-809CDBCC8687.

FCC15FC3-32E3-4EAD-848D-809CDBCC8687.jpeg

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