Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinder

jonathan alvarez /
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Hi for everyone!

First of all, sorry about the lack of pedals on this engine, but in my country every motor below 50cc is considered as a Ciclomotor (Spanish word for moped).

Second, sorry about my english, is not my native language.

In the 90´s when mopeds were very popular here in Uruguay, a common modification to run on 1/4 mile races were installing watercooled Kawasaki AR80 cylinders on Hero Puch motors. It consisted of filling the cases to match the new cylinder, a very expensive work in a time when TIG machines were a rarity (even today are very few places that work with aluminium).

After a recent flood, a neighbor of mine put this engine to sell, I picked it up almost instantly. It was completely under water, but only superficial rust except on the top of the cylinder walls, they were very pitted.

It was partially dismantled when I bring it home, I mocked it up just for the pics. Note the homemade intake for a bigger-than-stock carb:

First, I took the clutch cover off, no oil were in it and water causes a lot of superficial rust:

I cleaned it with gas and some brushes and it came better than I expected, only the clutch pads, basket bushing and the clutch actuator are damaged by use:

Note the rust marks from the water:

At least the kickstart mechanism was cleaned and reassembled in just half an hour:

The rest of the engine took me two days to dismantle because I didn´t have a flywheel extractor. This engine came with an Autostart ignition, it has a reversed flywheel (compared to the other Hero Puch motors) with a toothed ring where the start motor engages. This flywheel uses a different extractor and it´s practically unobtainium here, fortunately it came apart with lot of penetrating oil and a few hammer taps over the crankshaft nut:

The 6 rivets holding the flywheel to the center are loose, I need to figure how to tighten them mantaining concentricity and without breaking anything:

The inside of the cases are pretty rough:

Here you can see the 3 pairs of gears:

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderTopic by: jonathan alvarez jonathan alvarez 06/27/19 12:21PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 06/27/19 12:36PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 06/27/19 12:40PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 06/27/19 12:49PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Derek Stahl Derek Stahl 06/27/19 01:38PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 06/28/19 12:43AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Dirty30 Dillon Dirty30 Dillon 06/28/19 09:12AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 06/28/19 09:19AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 06/29/19 01:27PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 07/01/19 09:28AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Graham Motzing Graham Motzing 06/27/19 01:55PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Born to be WillD Born to be WillD 07/02/19 01:45PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 06/27/19 03:14PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Aaron Blair Aaron Blair 06/28/19 08:13AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 06/28/19 01:23PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Graham Motzing Graham Motzing 06/28/19 01:52PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 06/28/19 02:28PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Dirty30 Dillon Dirty30 Dillon 06/28/19 02:10PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Derek Stahl Derek Stahl 06/28/19 02:33PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Chöschi21 C.K. Chöschi21 C.K. 06/28/19 02:02PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 06/28/19 02:32PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Graham Motzing Graham Motzing 06/28/19 05:44PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: scrot rash scrot rash 06/29/19 11:04AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 06/28/19 02:49PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: DrGeorgeTompson (Alan) DrGeorgeTompson (Alan) 07/01/19 04:30PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Dirty30 Dillon Dirty30 Dillon 07/02/19 10:40AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 07/01/19 04:43PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: DrGeorgeTompson (Alan) DrGeorgeTompson (Alan) 07/02/19 10:32AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 07/02/19 10:19AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 07/02/19 12:03PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 07/09/19 10:02AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: DrGeorgeTompson (Alan) DrGeorgeTompson (Alan) 07/09/19 01:06PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 07/09/19 01:32PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 07/09/19 10:04PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: DrGeorgeTompson (Alan) DrGeorgeTompson (Alan) 07/09/19 10:33PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 07/10/19 12:04AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: DrGeorgeTompson (Alan) DrGeorgeTompson (Alan) 07/10/19 01:09AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 07/10/19 04:29PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: will warn will warn 07/09/19 11:22PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 07/10/19 08:57AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/12/20 11:27AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/12/20 01:08PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 05/12/20 01:12PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: 🇮🇹💦 Of the Loin 🇮🇹💦 Of the Loin 05/12/20 11:55AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/12/20 04:23PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 05/12/20 09:49PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/13/20 09:58AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: P D P D 05/13/20 10:11AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/13/20 10:30AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: 🇮🇹💦 Of the Loin 🇮🇹💦 Of the Loin 05/13/20 10:38AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/13/20 11:26AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: 🇮🇹💦 Of the Loin 🇮🇹💦 Of the Loin 05/13/20 11:57AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/14/20 09:55AM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: Daniel '' Daniel '' 05/14/20 01:07PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: 🇮🇹💦 Of the Loin 🇮🇹💦 Of the Loin 05/14/20 01:36PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/14/20 01:56PM
  Re: Noped engine with steroids - Indian Hero Puch 3 sp with Kawasaki Ar80 cylinderRe: jonathan alvarez jonathan alvarez 05/14/20 01:48PM

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