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what other engine can I fit onto a generic trigger sm 50

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goos
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Joined: 26 Aug 2015
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PostPosted: 20:10 - 29 Aug 2015    Post subject: what other engine can I fit onto a generic trigger sm 50 Reply with quote

a question to all you motocycle specialist's.
what other engine would fit onto a generic trigger sm 50.
And I meen any engine, doesnt just have to be a 50.
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mentalboy
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PostPosted: 20:37 - 29 Aug 2015    Post subject: Reply with quote

The answer depends very much upon your fabricating ability to shoe horn in another engine.
A reasonable skillset and a welder and you could pretty much get away with anything
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goos
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PostPosted: 20:58 - 29 Aug 2015    Post subject: Reply with quote

thats very much true but say I dont want to mess with welding and stuff and just wanted to fit an engine that is compatible with the frame of this bike, as I've noticed these particular bikes seem to all look a like and what ive read online that the minarelli am6 engines are similar so are there bigger engines that are similar in structure to fit directly into the frame or have a read this wrong.
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mentalboy
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PostPosted: 21:58 - 29 Aug 2015    Post subject: Reply with quote

goos wrote:
thats very much true but say I dont want to mess with welding and stuff and just wanted to fit an engine that is compatible with the frame of this bike, as I've noticed these particular bikes seem to all look a like and what ive read online that the minarelli am6 engines are similar so are there bigger engines that are similar in structure to fit directly into the frame or have a read this wrong.


I believe the am6 is similar, whether it fits I couldn't say and it is still only 50cc. I should imagine the problems you face are:
1) It'd be cheaper to sell the current thing you've got and buy a bigger bike
2) It's not the kind of bike people would generally muck about with so it may be tricky finding a definitive answer. Somebody has always got to be a first for it though - which takes you back to problem one!
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goos
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PostPosted: 12:43 - 30 Aug 2015    Post subject: Reply with quote

Thank you for replying.
The bike costed me £200 I knew it had an engine problem but for its condition I thought what the fek but sadly I don't have a full uk bike licence only a full uk car license that I passed in 1989 so luckily for me I can ride a 50cc with no cbt or L plates, sadly as my parents where megga strict when I was a kid and would not even allow me to mention motorbike and back then I know it would've probably have been the best time to have learned as it was so easy then in fact I would imagine it was easier than todays cbt's to get a full bike license.
Any ways got married had kids my wife was also against the whole bike thing but now she's more relaxed about it and ever since I found an old piaggio velofax vespino 50cc twist and go got it running and now can get 45mph out of it I think damn so much fun made it all road legal and want to move on to something bigger.
These days its cost close to a £1,000 and its like a 3 day course to get a full uk motorcycle license so for me I dont think thats ever going to happen but now I picked up this generic trigger it looks like a big bike and if I can get a bigger engine in it I can maybe keep it registered as a 50cc.
I know what youre all thinking NO NO illegal but why are companies selling big bore kits, that's illegal too right even getting an extra 20cc which loads of people are doing these days.
Any ways for me its a project I'm looking into and actually looking forward to.
I have a little bit of mechanical skill and the tools so even just to use it off road, its got to be worth a try.
Just to gain the knowledge and the experience of it all.
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mentalboy
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PostPosted: 13:11 - 30 Aug 2015    Post subject: Reply with quote

goos wrote:
... but now I picked up this generic trigger it looks like a big bike and if I can get a bigger engine in it I can maybe keep it registered as a 50cc.
I know what youre all thinking NO NO illegal but why are companies selling big bore kits, that's illegal too right even getting an extra 20cc which loads of people are doing these days.


It is not illegal to up the bore size on your engine, however if you are riding a 70cc machine that is registered as a 50cc and you haven't informed your insurance company then they'd probably kick up a stink if they ever found out, especially so for under 17's (as they are also restricted to 49cc not larger).
You'll also find it a requirement to inform DVLA of engine size change.

Hiding a big bore kit from insurers/DVLA may be reasonably easy, sticking in a larger engine that is easily identifiable by it's stamped number may not be found out but I wouldn't much fancy chancing it. It's your licence and insurance bill so you have to decide what it's worth if you are found out, the same could be said of speeding.
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goos
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PostPosted: 15:59 - 30 Aug 2015    Post subject: Reply with quote

why do they make bigger and faster motor vehicles when we all know that your only restricted to certain speeds in certain country's.
Is it because that the owners of these vehicles think yeah its illegal to go over 70 on the motorway in the uk but hey I still got the power and if I want I can floor it to the max and maybe at the same time getting a quick thrill out of breaking the law and getting away with it, some times.
Any Ways going to take a proper look at the generic trigger engine its water cooled and noticed theres a creamy substance on the radiator cap so I'm thinking is that a gasket problem and maybe thats why the bike is not starting up.
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c_dug
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PostPosted: 16:13 - 30 Aug 2015    Post subject: Reply with quote

Just do your bike licence and stop being a fanny.
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goos
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PostPosted: 16:22 - 30 Aug 2015    Post subject: Reply with quote

Ha ha, nice one, you are very right.
Time and money is the big question and a little bit of fanny, maybe.
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Ste
Not Work Safe



Joined: 01 Sep 2002
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PostPosted: 16:24 - 30 Aug 2015    Post subject: Reply with quote

goos wrote:
These days its cost close to a £1,000 and its like a 3 day course to get a full uk motorcycle license

£1,000 for a three day course is a slight over exaggeration. Wink

goos wrote:
why are companies selling big bore kits, that's illegal too right

Confused Laughing

There's nothing illegal about selling big bore kits.

As said above, sort your full license. Thumbs Up
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goos
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PostPosted: 16:34 - 30 Aug 2015    Post subject: Reply with quote

yes I did exaggerate a bit but I still thinks its expensive.
I suppose what I have to look at to comparing it with over 25 years ago laws and regulations is that today these instructors nowadays are a lot more thorough in all aspects of motorcycling not like back in the day, seriously it was like a few hours riding about in a car park and well done here's your'e bike license.
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c_dug
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PostPosted: 16:40 - 30 Aug 2015    Post subject: Reply with quote

There's a reason for that, it's the same reason it's retarded to try and skirt the law and chuck a bigger engine in your 50cc frame.

I don't agree with all bike related legislation by a long shot, but to try and skip any training whatsoever is the talk of the sort of person who earns the rest of us the organ donor nickname. Actually it's the talk of the sort of person who got us into the situation in the first place. "How easily and cheaply can I go as quickly as possible."....."oops, a tree."

Out of interest if somebody had told you it was a straight 'bolt on' swap to put a 50bhp engine into the frame, would you go for it?
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Fladdem
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PostPosted: 19:35 - 30 Aug 2015    Post subject: Reply with quote

1, Remove Handlebars and number plate

2, Wheel Generic Trigger from underneath

3, Wheel in WR450F

4, Replace handlebars and number plate

5, Profit?

Laughing
____________________
Current:1991 Honda MT50 (Soon to be a H100/MTX/MT5 hybrid), 1976 Honda Cub C70, 2005 Honda Varadero 125, 1993 Yamaha TTR250 Open Enduro , 2010 Road Legal Stomp YX140, 1994 Honda CRM 250 MK III, 1999 Cagiva Mito 125, 1992 Honda CB400 Super Four, Stomp T4 230, 1984 Honda H100s, 2009 Sym XS125K
Past:2003 Aprilia RS125, 1982 Kawasaki GPZ550(FREE BIKE!)
I'm having more fun than a well-oiled midget.
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goos
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PostPosted: 12:48 - 31 Aug 2015    Post subject: Reply with quote

No, putting a 50bhp into a 50cc engine type motorcycle is actually taking the mickey mouse.
No I'm no boy racer and obviously there are people who dont care about the dangers, there lives and others too.
I actually have full respect for those of you who take this very seriously.
Even though I have been driving for over 25 years and have never broken the law, I'm not some teenager hot head who's looking for a thrills.
Its just having a motorcycle that can keep with the flow of traffic and to enjoy the freedom of motorcycling.
Something I wish I did when I was a youngster just making up for lost time is all.
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G
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Joined: 02 Feb 2002
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PostPosted: 11:02 - 06 Sep 2015    Post subject: Reply with quote

goos wrote:
No, putting a 50bhp into a 50cc engine type motorcycle is actually taking the mickey mouse.

Some kid on here most probably died from doing this.

Quote:
take this very seriously.

Had me, up until...
Quote:
driving for over 25 years and have never broken the law,

Laughing

If you want a bike that will keep up with the flow of traffic, you're in the wrong place really.

As it goes, I DO own a 50cc with a NS125 engine in it. It looks a bit bodged (not done by me).

None of what you describe sounds 'worth a try'.

There are plenty of better option to achieve your desired result.
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