New to JCP Duster…Does this look like the original engine.
- Thread starter f4radar
- Start date
That's a 70 model engine with the mini bike correct muffler. I'm not sure if it was the correct engine for your Duster, but it looks like a mini bike correct engine.
Cat wasn't very consistent with the engines they used. They were known to use different submodel versions of the same engines across the same model of bikes. They also would interchange the H30, H35 and HS40 pretty liberally within the same model runs.
Cat wasn't very consistent with the engines they used. They were known to use different submodel versions of the same engines across the same model of bikes. They also would interchange the H30, H35 and HS40 pretty liberally within the same model runs.
Just about all of the Dusters I have seen on here have used practically the same engine (although some might have been 3.5 hp or 4 hp because they did alternate the horsepower on them through production some). The engine is the same year as the Duster (1970) and pretty much has all the period correct parts for it except the Dusters I have seen have the Taylor Spark arrestor muffler on it, but it wouldn't surprise me if they put that muffler on it because they didn't have any more of the Taylor mufflers to use at the time.
Everything adds up for this being the right engine for your Duster. Especially if this was the engine that you got with it or if you found this engine while searching back at the place you found it from, because unless they had other mini bikes, I doubt this engine could belong to any machine but the Duster.
Everything adds up for this being the right engine for your Duster. Especially if this was the engine that you got with it or if you found this engine while searching back at the place you found it from, because unless they had other mini bikes, I doubt this engine could belong to any machine but the Duster.
Thanks for the information,,I found this h30 and a hs40 with the bike at the sale. They were selling the bike at one price and 10 dollars for the two motors...at the time I didn't know anything about dusters so I grabbed the motors hoping one was the original and by the numbers i think this h30 is. I'll go back tomorrow and look for what I know to be missing.
Yes That is the correct engine for a later in the year 1970 Duster chopper. I rebuilt The earlier 1970 H30 for someone's Duster recently. His was a 35231G which was last of the steel tanks and a few other little things that were being revised which of course became your 35231H. And yes the Round Tecumseh muffler is correct. Taylor mufflers were not introduced until earlier part of 1971.......He insisted I use an ebay muff that is a terrible copy of one of the Taylors over his original Tecumseh 7 hole that was on it, I was not happy about it, but the one paying the bill has the final say
. Here's how it came out, Needed a lot of lovin' inside and out!
Yes That is the correct engine for a later in the year 1970 Duster chopper. I rebuilt The earlier 1970 H30 for someone's Duster recently. His was a 35231G which was last of the steel tanks and a few other little things that were being revised which of course became your 35231H. And yes the Round Tecumseh muffler is correct. Taylor mufflers were not introduced until earlier part of 1971.......He insisted I use an ebay muff that is a terrible copy of one of the Taylors over his original Tecumseh 7 hole that was on it, I was not happy about it, but the one paying the bill has the final say .
Here's how it came out, Needed a lot of lovin' inside and out!
View attachment 281321
. Here's how it came out, Needed a lot of lovin' inside and out!
View attachment 281321
Attachments
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Thanks, The carb is a correct small frame H version, so I would say it probably the OG one, and the clamps like that were in use back then. If you want to verify that the carb is the correct one associated with that engine model, there are numbers stamped in the top left side, that you can cross reference (there is a link to that site in the sticky threads in the Tecumseh section), and get the part number from, which will be listed on the parts list for you engine and on the better sites also have the parts explosion for it linked to your engines model number parts list. Your missing some pieces on the throttle bellcrank and that should be addressed so you can have proper cable return.........Or you wont need the laxative cause you'll be shittin' your pants when the throttle sticks wide open
Thanks, The carb is a correct small frame H version, so I would say it probably the OG one, and the clamps like that were in use back then. If you want to verify that the carb is the correct one associated with that engine model, there are numbers stamped in the top left side, that you can cross reference (there is a link to that site in the sticky threads in the Tecumseh section), and get the part number from, which will be listed on the parts list for you engine and on the better sites also have the parts explosion for it linked to your engines model number parts list. Your missing some pieces on the throttle bellcrank and that should be addressed so you can have proper cable return.........Or you wont need the laxative cause you'll be shittin' your pants when the throttle sticks wide open
Thanks, The carb is a correct small frame H version, so I would say it probably the OG one, and the clamps like that were in use back then. If you want to verify that the carb is the correct one associated with that engine model, there are numbers stamped in the top left side, that you can cross reference (there is a link to that site in the sticky threads in the Tecumseh section), and get the part number from, which will be listed on the parts list for you engine and on the better sites also have the parts explosion for it linked to your engines model number parts list. Your missing some pieces on the throttle bellcrank and that should be addressed so you can have proper cable return.........Or you wont need the laxative cause you'll be shittin' your pants when the throttle sticks wide open
Attachments
Yes That is the correct engine for a later in the year 1970 Duster chopper. I rebuilt The earlier 1970 H30 for someone's Duster recently. His was a 35231G which was last of the steel tanks and a few other little things that were being revised which of course became your 35231H. And yes the Round Tecumseh muffler is correct. Taylor mufflers were not introduced until earlier part of 1971.......He insisted I use an ebay muff that is a terrible copy of one of the Taylors over his original Tecumseh 7 hole that was on it, I was not happy about it, but the one paying the bill has the final say .
Here's how it came out, Needed a lot of lovin' inside and out!
View attachment 281321
. Here's how it came out, Needed a lot of lovin' inside and out!
View attachment 281321
it’s the only way they fit on those this is the catalog shot I used as Reference for the rebuild:
The late/last version original paint one I had I remember marks from the hat actually making contact with the fender on it and fighting to gain as much room as I could get when I reassembled it after cleanup.
The late/last version original paint one I had I remember marks from the hat actually making contact with the fender on it and fighting to gain as much room as I could get when I reassembled it after cleanup.
