mt50 faster?

[RaVeR_mt50]

Hi im new on this site please don't flame me cause of my bike im only 16 just passed cbt my mt has a dep pipe which are apprently the best but it only still tops out 40-45 do these bikes have any other restrictions I should know about. all the scooters leave me for dust

thanks

[MarJay]

Maybe a little punctuation?

Unfortunately I imagine that with an MT50, as with a lot of 50ccs you need to buy a better bike to go faster. if it does 45 then it isn't restricted, and so I doubt that you'll get it to go any faster really.

Sorry I can't be of more help, but 50's are designed to do 30 and little more I'm afraid.

as the old adage goes, you pays yer money, you takes yer choice.
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Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[RaVeR_mt50]

oh well I will see how a big bore kit goes maybe will keep up with the hair dryers then

[carvell]

How old are you now?

How long until your birthday?
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[RaVeR_mt50]

[Kickstart]

Hi

With the MT5 Honda was quite strict about the 30mph limit. If you are getting 45mph out of it you are doing very well.

Big bore kit will probably help, but god knows what the reliability will be like.

Easiest, but also illegal (but then so is the big bore kit), is to just fit the complete engine from an H100.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[RaVeR_mt50]

will it look much diffrent with a h100 engine accept being abit larger?

[Kickstart]

Hi

As far as I can remember the engines look the same except the MT5 engine is black and the H100 unpainted. The cooling fins are a different shape on the later H100S / S2 compared to the earlier H100A.

All the best

Keith
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[RaVeR_mt50]

Hmm this sounds like a good idea to do when im 17 insted of buying a new bike these h100 engines hard to come by?

[badlydamaged]

Shouldn't think they are hard to come by, H100s were made until 13 years ago so theres still some about. Have a look on part finder to search bike breakers for a complete engine, although id expect youd pay about £100 - £120 for a working one with carbuerttor etc.

https://bike-breakers.info/web_pages/HomeFrame.htm

Good luck!
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[Frost]

what is the law on changing engines? does the bike then leagally change capacity or is it just couted as a modification?

I have a 125 superdream, these things are hellishly expensive considering what you get. where as the 250 dream is dirt cheap as no one wants them, as they would rather get a bigger bike. so could i buy a 250 dream, drop a 125 in it,. then legally ride it on L plates?
If so i think ive found a nice little earner

[R1stu]

I used to have an MT50. My one did about 45-50 at a push.

If you put a BB Kit in it dont expect it to last long. The MT50 was one of the worst 50cc bikes for them, and always blew up very quickly. (Con rod snapping).
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[RaVeR_mt50]

hmm I think a bb isnt a good option then anything else I can do to make it go faster?? without making the reliablity fall?

[Frost]

Its a 50, there is a definalt limit to hop much power you can get out of it, without popping it.
Your only other option is aerodynamics or gearing.

does it wizz up to 45 then redline? or does it gradually slow down untill it hits 40ish, then crawl to 45?

[RaVeR_mt50]

it hits diffrent speeds diffrent days I avarage out at about 37 good road and day will have 40 and a slight slope will have 45 and after it if the road is stright it will stay there

[Frost]

yup, thats completly power related. adjusting gearing is not likely to increase your top speed at all.

you can of course tune a 50 to go 70+ however this is expensive, time consuming and likely to cause it to blow up.

In all honesty you are best off keeping the bike in great condition, waiting untill you are 17 then swapping it for something better

[RaVeR_mt50]

ok well thanks it does run well and had good paint not much rust etc will try keep its value the same for when I sell it

[Kickstart]

[RaVeR_mt50]

I found a site with tuning parts im thinking of a bigger carb they do not say what bore the carbs will fit? what size is best?? I only want 50-55 mph also is there any point getting a performence filter? and what do reed valves do cause the best 1 I can find is only £30 cheers

[Kickstart]

Hi

Suspect you will struggle to get those kinds of speeds from it, partly from gearing (similar to the H100 you cannot gear them high enough for a proper top speed). That would probably require 6~8hp, and the MT5 engine is not that good.

Carb wise not sure what is available, but I would doubt the reeds would make any difference to top speed at all (they allow fuel / air into the engine crankcases while the piston is going up, but stop it getting back out through the carb when the piston is going down). However not sure if the MT5 uses fibre reeds or steel reeds but if they are steel then it might be worth upgrading just so when they fail they are less likely to damage the piston / barrel.

All the best

Keith
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[mrchips]

My MT50 was dead slow, so I took the frontpipe off and cleaned out the port - it was half clogged. This gave me improved acceleration and a bit of a bigger top end - 40mph. The standard MT50 speed is 35mph, so I think unless you are willing to spend money on a good quality big bore kit and gvie it a good run it it may be good for a few thousand miles. As for derestriction - you will have to get a bigger carburetter - at least 16mm as the one on it is 13mm. There is also a stopper plate over the reed valve, so rather than breaking that off, buy race reeds for it. To be honest I left mine standard because straining an engine of that age will do more harm than good. I'd say get race reeds to improve acceleration but as for top speed get used to it, then you will appreciate your 125 an awful lot more.

EDIT: Some sites you may find benificial are www.myhondamt5.cjb.net and www.50cc.nl

[ts50x0]

dont wqprry about the scooter boys overtaking you i used to be like that on my ts50. but now ive got my nsr i just lagh at how pathetic their little hair dryers are as i go flying past them with my knee down. good luck if you decide to tune it. you can get bb kits from www.mandp.co.uk ....

ps. good on you for getting a real bike even if it is a bit slower!!!!