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Littleladydre... |
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Littleladydre... Derestricted Danger
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Littleladydre... |
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Littleladydre... Derestricted Danger
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WD Forte |
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WD Forte World Chat Champion
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Littleladydre... |
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Littleladydre... Derestricted Danger
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lingeringstin... |
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lingeringstin... Spanner Monkey
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Posted: 17:35 - 21 Sep 2021 Post subject: stuff |
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Sounds like you're probably OK, but I do have some things you might be interested in at a later time.
I've been experimenting with these Honda twin and clone engines for a little while and I have to say they are fun to mess about with. A real tinkerer's dream. To be honest there's not much difference between any of them from 125 to 250 and whatever in between. They're basically all the same engine with minor differences.
The original Benly twin engine seems to have been meddled about with by Honda over the years to transform from 125 to 185, 200 and finally into a 250 using much the same parts. A lot of engine bits will fit, or can be made to fit, over any of the size range, so in effect a Honda CD250U is basically still just a Benly 125 with a few modifications.
I don't know when Honda quit making the Benly style twins, but then China started cloning them and in my experience the Chinese clones are internally just as good as what Honda ever made. The cases and other external bits look less well finished but as far as I can tell the Chinese gearboxes and cranks and that sort of internal stuff are every bit as good as what Honda made and they fit straight in. Much cheaper to get too!
Seems like engine mount holes and cylinder stud spacing stayed the same across all the engine sized so there's a lot of scope for mix and match fun with minor modifications. I currently use the 250 engines with 125 heads and other little tweaks but Benly purists wouldn't like it because it doesn't look exactly right.
Since so much of the Benly and clone engines are the same you can do fun things with them. For instance I once cobbled a five speed gearbox into a Benly CD200, which had a four speed gearbox originally and it didn't take that much doing. I think I had to have a small adapter or something made at the machine shop down the road but it wasn't expensive and I ended up with a five speed CD200 engine which looked exactly original. A bloke bought it off me for his own CD200 build. He wanted everything to look original but was going to upgrade the electrics to 12v and liked the five speed gearbox idea.
Benly's had 6v points ignition but the 12v alternator and electronic ignition from a Jinlun or similar Chinese Benly clone engine will bolt right on, which is what I use and it's great.
I even modified a 125 twin into a 202cc which went like stink and fits straight into any bike that uses a Honda twin Benly style engine. I was going to get a little Benly 125 to put it in so I could annoy the folks on their bog standard Benly rebuilds but now vintage Benly's are too pricey for me to have fun with so now it's just a spare engine if I ever need it, which I won't because I've already got three other perfectly good modified 250 engines at the moment for my one bike.
If you were doing any minor engine work yourself I have about tree sets of barrels in good condition that might be useful, and a brand new pair of 150 pistons that I was going to rebore one of the barrels for but just haven't got round to it. I've got too many engines now so I lost interest in the 150 conversion but you could do that to your own bike for a bit more poke and it would still look original. |
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Littleladydre... |
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Littleladydre... Derestricted Danger
Joined: 04 Sep 2021 Karma :
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Posted: 18:52 - 21 Sep 2021 Post subject: Re: stuff |
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lingeringstink wrote: | Sounds like you're probably OK, but I do have some things you might be interested in at a later time.
I've been experimenting with these Honda twin and clone engines for a little while and I have to say they are fun to mess about with. A real tinkerer's dream. To be honest there's not much difference between any of them from 125 to 250 and whatever in between. They're basically all the same engine with minor differences.
The original Benly twin engine seems to have been meddled about with by Honda over the years to transform from 125 to 185, 200 and finally into a 250 using much the same parts. A lot of engine bits will fit, or can be made to fit, over any of the size range, so in effect a Honda CD250U is basically still just a Benly 125 with a few modifications.
I don't know when Honda quit making the Benly style twins, but then China started cloning them and in my experience the Chinese clones are internally just as good as what Honda ever made. The cases and other external bits look less well finished but as far as I can tell the Chinese gearboxes and cranks and that sort of internal stuff are every bit as good as what Honda made and they fit straight in. Much cheaper to get too!
Seems like engine mount holes and cylinder stud spacing stayed the same across all the engine sized so there's a lot of scope for mix and match fun with minor modifications. I currently use the 250 engines with 125 heads and other little tweaks but Benly purists wouldn't like it because it doesn't look exactly right.
Since so much of the Benly and clone engines are the same you can do fun things with them. For instance I once cobbled a five speed gearbox into a Benly CD200, which had a four speed gearbox originally and it didn't take that much doing. I think I had to have a small adapter or something made at the machine shop down the road but it wasn't expensive and I ended up with a five speed CD200 engine which looked exactly original. A bloke bought it off me for his own CD200 build. He wanted everything to look original but was going to upgrade the electrics to 12v and liked the five speed gearbox idea.
Benly's had 6v points ignition but the 12v alternator and electronic ignition from a Jinlun or similar Chinese Benly clone engine will bolt right on, which is what I use and it's great.
I even modified a 125 twin into a 202cc which went like stink and fits straight into any bike that uses a Honda twin Benly style engine. I was going to get a little Benly 125 to put it in so I could annoy the folks on their bog standard Benly rebuilds but now vintage Benly's are too pricey for me to have fun with so now it's just a spare engine if I ever need it, which I won't because I've already got three other perfectly good modified 250 engines at the moment for my one bike.
If you were doing any minor engine work yourself I have about tree sets of barrels in good condition that might be useful, and a brand new pair of 150 pistons that I was going to rebore one of the barrels for but just haven't got round to it. I've got too many engines now so I lost interest in the 150 conversion but you could do that to your own bike for a bit more poke and it would still look original. |
Hi thank you for the very detailed reply. I think I will have to read it over and over to take everything in... It's good to know that other parts will fit. I have researched a bit and thought they would so it's nice to have confirmation.
I want to make it as light, narrow and short in height has possible. As I'm only 4ft 11 and 6 and a bit stone.
I'm going to be taking the engine out soon ( with help) then started work on the frame, sanding it down and making adjustments to fit a narrow seat... ____________________ JE |
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lingeringstin... |
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lingeringstin... Spanner Monkey
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Littleladydre... |
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Littleladydre... Derestricted Danger
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lingeringstin... |
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lingeringstin... Spanner Monkey
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Old Thread Alert!
There is a gap of 226 days between these two posts... |
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bezzabsa |
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bezzabsa Scooby Slapper
Joined: 24 Jan 2013 Karma :
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A100man |
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A100man World Chat Champion
Joined: 19 Aug 2013 Karma :
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Old Thread Alert!
The last post was made 2 years, 29 days ago. Instead of replying here, would creating a new thread be more useful? |
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