Red line and distance

After years of 2 stroke motorbikes I decided to buy myself a 125cc moped.last week I purchased a 2 year old nipponia 125 miro.it is air cooled and I was wondering if it will be good for a 72 mile round trip.obviously on this trip at some point you will be in the red line to get top end speed,is this a bad thing for the moped and will it cause damage to the engine etc

 

Itll do it but I personally wouldnt do it long term. Be OTT with maintenance and it should be OK.
If you need to do distances like that and your old enough... maybe its time for the big boy bke licence.

 

Theres no "obviously hit the red line" you are in control of the bike so find a cruising speed and keep it under the red line and the bike will do fine on a trip like that, if you don't then it won't.

 

My cruising speed will be 50mph then has after that I'll be hitting the red line

 

Then 50 is high as you can safely go.

 

i would say its fine, i used to take my old runner VX at full throttle runs for easy 50 mins (down the A14) as long as you keep your bike serviced well it should be fine, they have a rev limit built into the ignition to stop over revving and valve float, nearly all bikes do in fact.

 

Serviced meaning making sure there is enough engine oil?

 

Serviced meaning changing the oil regularly, Changing the spark plug, Making sure valves are adjusted properly, Cleaning/Changing air filter element, Changing gearbox oil, Keeping an eye on the belt and rollers.

 

Never owned a 4 stroke so how often do I do all the above

 

Service manual should tell you .
But personally on my smaller scoots -
Oil change ever 1250 miles.
Spark plug at the same time.
Valve clearances every other oil change.
Air filter clean every oil change.
Gearbox oil every 5,000 miles.
A quick check of the belt and rollers every month. Just whip the side case off and check that the belt is still within useable limits (owners manual will tell you) check the rollers at the same time, Just make sure they arent flat spotted and are round.

Thats what I do. Everyone is different. Get a copy of the owners manual/workshop manual and see what that says.

 

Are the valves easy to do,or would you recommend paying a garage to do it and or a service

 

Its not too hard to do but it can be daunting at first.
Watch a few YouTube videos, Read a few guides from google and then decide if its something you think you can do.
If you are unsure, dont touch it. Take it to a BIKE garage to be done, Dont take it to a normal car garage.

 

its quite easy to do work on these scoots, if you are mechanically minded at least.
a full service (oil, plug, filters etc) should take about 2 hours with all the right tools, an hour if you know exactly what you are doing.
you may find that you have to take off lots of plastic to get to the valves.
between me, stevep and scootz, we can write up a fairly detailed service quide for you.
i suspect your bike has a GY6 engine, which will give you loads of info if you do some googling...

 

I know to take it to a bike shop lol

 

Yes I'd love a write up of fairly detailed service guide,not sure if the nipponia miro 125 has gy6 engine has its the first ped I've owned

 

ok, well this could get a bit messy, and someone else will have to get the details for torques and the gaps for the valves... but here goes:
first you need to drain the engine oil, get the bike warmed up, whilst you are doiing that, check all your bulbs and switches work and that your brakes work nice.
after 5 mins, you can get your bike up on the centre stand.
take the oil drain bolt out, will be the lowest bolt on the engine. be careful, there will be a washer and sometimes a sort of filter thing
whilst that is draining off, you will want to take the rocker cover off, this is quite often held on by a few little 6mm thread bolts (8mm heads) might be an ass to get to. then you will have to take off some side panels or the under seat panel thing.
you want the engine to be a TDC it quite often sits exactly on this, you know it will be right as both valves will be closed (cam points facing down) there should be a little slack in the valves.
if you are unsure, check the timing marks, cant give you exact info on that but someone else will.
after you have done the valves, you can put the rocker cover back on, the drain bolt back in and fill it up with engine oil (use some good branded stuff, not supermarket shite)
then you can do your final drive oil, bikes it is not replaceable, but most bikes have a drain and a fill hole, wont need much, probably about 200ml tops, and you may need a syringe to fill it (can be difficult to get to). you may even find taking the rear wheel off is the only way you can do it!
then you can check your plug and air filter, spark plugs dont need to be changed that often, espessially if you use a decent iridium one, they last a long time like 100000 miles long....
hope that helps, any questions just ask. stevep will be here and give some numbers for your valve clearances i should think.

 

Thanks for this info and much appreciated

 

Valve clearances for a 125cc GY6/Chineses scooter engine are 0.08 for both intake and exhaust according to my manual.