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Its not 1mm extra, cos a standard melody piston is 40mm and that big bore melody one is 44mm, the vision big bore one is 46mm.
Also, i realise the first link is for a mini melody, i don't know how they differ from normal melodies as far as melodies are concerned.
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In that case, open up your engine and measure the thickness of the sleeve in the barrel (the iron bit not the aluminium bit) if it's 50mm diameter you could get away with a bore out to a 46mm piston, while the top ends off measure all the heights of the piston and ask the ebay seller if he can furnish you with all the piston dimension's.
A porting job and really good pipe will still bring the most power. the smaller the intake side of the engine the more important the pipe dimension's.
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May 30, 2010 13:38:44 GMT
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In that case, open up your engine and measure the thickness of the sleeve in the barrel (the iron bit not the aluminium bit) if it's 50mm diameter you could get away with a bore out to a 46mm piston, while the top ends off measure all the heights of the piston and ask the ebay seller if he can furnish you with all the piston dimension's. A porting job and really good pipe will still bring the most power. the smaller the intake side of the engine the more important the pipe dimension's. If you PM me I can give you all the dimensions - could probably supply a big bore kit as kit Cheers Giles
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May 30, 2010 14:46:34 GMT
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In that case, open up your engine and measure the thickness of the sleeve in the barrel (the iron bit not the aluminium bit) if it's 50mm diameter you could get away with a bore out to a 46mm piston, while the top ends off measure all the heights of the piston and ask the ebay seller if he can furnish you with all the piston dimension's. A porting job and really good pipe will still bring the most power. the smaller the intake side of the engine the more important the pipe dimension's. If you PM me I can give you all the dimensions - could probably supply a big bore kit as kit Cheers Giles Do you have a melody then? if so, that would be brilliant. PM coming your way.
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Right, dodgerover has been helpful:
Anyone know where you would get an unrestricted/tuned barrel from?
Cheers.
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Not sure if it'd fit a melody engine, i'd have to compare the 2.
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what else was the melody engine used in? there is a nice list there of different honda top ends.
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Havent a clue, wouldnt know where to find out >_<. Goddamn I'm useless
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Electric start doesnt work and hasnt for a while, i used to think it was just because the battery went flat and i've been using the kick start, but now i've found out its genuinely broken... You press the button and nothing happens, not even a click.
Any ideas whats happened to it?
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try running current directly to the starter, if it spins start looking at the start button then onward through the wiring until you have to change the solenoid.
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Will any other engines fit in there comfortably? As much as tuning the old melody engine is a really nice idea (I love the thought of modernising old things to make them better using the the existing stock - man and machine and all that), you could well end up spending a load of money and not ending up with that much. When you go to sell it on as well, you may find it would fetch higher money as an original example. The good thing about peds is the whole bike is basicly just bolted on the back - engine, gearbox, carbs, brakes, exhausts etc etc, are all one peice. All you need to do is find something that pivots in roughly the same place that can use you existing bolt, or one that will fit your frame, and attach a shock. As long as you can rig a speddo cable. Modern peds just go so much faster than old ones unfortunately. My mates got a Piaggio zip 50 (about £350 on ebay for a relativly clean mot'd bike) with a 70cc kit and it does about 65mph - although, a bloody scary 65mph! My misses has got a standard one that does about 45-48mph. You can got a whole load of tuning curse word for them as well. You should take a ride out to some bike scarp yards or bike shops and see if you can peep anyhting that would fit, then furnish your self with a second hand engine? Either way, cost up how much each option is going to cost you - porting and tuning the melody engine, getting a replacement engine, or... Couple things for your consideration. I know they cost, but ... If you sold the melody as an mot'd original bike, you should get a good price? cgi.ebay.co.uk/RS-50-2000-Re-storation-Project-Needs-Little-Work-/300433723965?cmd=ViewItem&pt=UK_Motorcycles&hash=item45f33ed23dcgi.ebay.co.uk/2000-SUZUKI-TR-50-SX-RED-street-magic-/150448040758?cmd=ViewItem&pt=UK_Motorcycles&hash=item230766eb36cgi.ebay.co.uk/2003-Gilera-DNA-50-/150450771960?cmd=ViewItem&pt=UK_Motorcycles&hash=item23079097f8Ohh mate! check this out - cgi.ebay.co.uk/1999-SUZUKI-TR-50-SX-BLACK-/120577224148?cmd=ViewItem&pt=UK_Motorcycles&hash=item1c12f66dd4
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Vivaboy i think changing the engine would be the only way really, providing i can find a cheap engine to justify it.
Terraroot ive decided not to worry for the moment.
Changing the subject completely again, i think the battery we bought off ebay is a complete duffer.
When we first charged it the meter on the charger never moved, we left in on charge for the allocated time and nothing happened as far as the needle moving is concered.
It was charged fine for a while, but lots of started and small journeys meant it went flat really quickly (don't know if it was supposed to THAT quickly), its was about then that the starter stopped working and i assumed it was because it had no charge. I've been kick starting it since to save sticking it on a charger again, but today i stuck it on charge again and found that the starter doesnt work at all, i then left it for 2 hours to charge.
Came back, it was bubbling to hell like it always does when its on charge, stinks of acid, and the battery is red hot. I tried the indicators to see if it had charged and they where really slow and sluggish, tried the horn and it barely made a noise, just some sort of crackling noise to show it had no charge at all.
Really don't know whats going on with it at all, but i don't think its any good. I assume its broken?
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Was this a brand new battery? Sounds kind of odd if it was. When it's charged, how much voltage does it push out when you stick a meter on it? Bubbling over i would have thought would signify over charging, but then if nothing works on the bike? If you stick some jump leads on it off a running car, how does it behave? If everything works well, I would place the fault at the battery, but then if it did work, but went dead after you had it on the bike, you may have a duff dynamo.
Was it new? How much acid is in the battery? Is it between the fill marks? What make is the battery?
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Yeah it was brand new. I dunno how much voltage it kicks out i don't have a meter to stick on it, unless you mean the one on the charger then it would register as none.
The bubbling happens as soon as you put it on charge, and as for putting it on a car i've jumped it off a car batter and it works fine.
I would assume the dynamo is fine because i've started the bike with kick start, ridden it up and down the track and then turned the bike off and been able to use the indicators, showing that the dynamo charges it fine.
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it could be over charging the battery, happens more often then you think, get a digital voltmeter very handy for lots of thing.
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Well there was no charge in it after i'd left it on charge for a while, and it was on low flow so i don't know how it could have been.
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if a battery is overcharged because of a dead rectifier, that battery will act flat very soon and then die, no amount of recharging will fix it. When it comes to electrical problems you really need a voltmeter, practically impossible with out one I'm afraid.
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Basicly, you can't see if the battery until you get a volt reading from the battery when it is supposedly fully charged. If the reading is good, test it the next day. If it's still good, it's ok. As a stand in voltmeter, you could put a 12v bulb and see how bright it burns, or if your dads got on kicking about, a car starter motoron then try it the next day to see if you get the same results. If the next day it's dead, or on it's way there, and the acid is at good level, your battery is duff. If before charging it reads as dead, make sure the levels are good, and stick it on charge for a couple hours. If it's still dead, it's knackerd. Problem solving by elimination.
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CBT is booked for wednesday, only bad thing about that is its in farnborough and clashes with the farnborough air show, so the roads will probably be chocca haha.
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