How long to warm up

[sutty86]

Right I'm expecting to get torn apart but it's a question I'm not totally sure on, as in the past I've had fuel injected bikes.

So....
On this bag of junk 125 scooter I've got it's a carb, how long should I wait it has an autochoke , no rev counter.
Obviously colder the longer I presume but should I wait five minutes etc.

Also having a few niggly issues , think I may have to remove carb and give it a good clean has bike was sat for 2 months ,
Low tyre pressures , bad fuel , 95 percent got it good nowm

[bugeye_bob]

Put your hand near the tail pipe, so you can feel the temp of the gases being expelled, this temp is a good guide to the engines internal temp.

[Rogerborg]

Does it have problems running unless you leave it idling for a while?

If not, start and ride.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[sutty86]

Slightly Bogs then blips back up no control and not safe at all. I live near an open stretch of road and yesterday I pulled the throttle expecting it to race ahead upto a steady 55 (125cc) and it was very temperamental.
New spark plug in, new air filter(stock) , oil change , new belt and rollers all standard, no performance parts in it.
Only think I've not looked at is the carb , sort of put off, as I have a tendancy to fuck things up.
But would rather learn then pay some guy whom is gonna rip me off

[sutty86]

There is no easy away around this , I know the yanks like to use is it seafoam , they swear by it but I don't think we sell a similar thing over here do we?

Someone talk me around to do the carb tell me it will be easy ( access is from above under the seat, quite tight)

[Derivative]

It's a utility scooter.

Spend the minutes you would have spent warming it up doing actual work.

Pay for the (theoretical and likely nonexistent) repairs with the money.

Jobbed.

[sutty86]

[Suntan Sid]

I find small capacity singles are a bugger from cold.
IME, unless your prepared to leave it idling for 10 mins or so, from cold, you'll always find it hesitant.
If you want to get all technical, properly warmed up means the engine oil will have reached it's normal operating temperature and is flowing around all parts of the engine, IMO you won't acheive that unless you ride it for a few miles.
Look at a workshop manual, for an oil change they, invariably, recommend riding the bike for a few miles to warm the oil up properly.
If your scoot runs nicely after a few miles I wouldn't worry about it, start it up, put your lid and gloves on, then ride it away!
If it has running problems after a few miles then have a look at the carb!
____________________
"Everybody needs money, that's why they call it money!"

[sutty86]

[Alpineandy]

[ADSrox0r]

You can get Seafoam on Amazon UK.
____________________
Current bikes: '08 VFR 800 VTEC(yo) , '07 ZZR1400 Winter hack: '95 Aprilia 650 Pegaso Currently lusting after: RC30

[sickpup]

[rcbikeracer]

[Copycat73]

if your breath is condensing in the air warm it up for 5 minutes ..

if its not warm for 3 minutes ..

probably as good as any advice...
____________________
Whatever I post I have no citation and no intention of providing one..
caveat emptor

[sutty86]

Think I've sorted it, just had an inspection of the air box(could do with a new one) slight break in the panels were the screws are battered.
I just replaced the screws and taped around the edges.
Scooter ran really well no issues.
Crazy how a small amount of air can cause problems

[Rogerborg]

[onlyJaz]

Similar question - I have a 2010 YBR, I assume this is fuel-injected? Would I have to wait to warm it up or is it okay to gently get going within a minute or so (taking extra care while the tyres themselves are cold)?
____________________
Yamaha YBR 125

[B5234FT]

My bike tends to bog and feel a bit flat if I hop on, start it and ride off, so I normally give it a minute so it's smooth out of the junction at the end of my road, but thats it. The whole warming up thing is nonsense, far more damaging leaving it ticking over cold for ten mins than just getting on.

[Rogerborg]

[onlyJaz]

[andyscooter]

if I let my bike warm up it doesn't want to go and bogs

if I start moving from cold its fine
____________________
gilera runner vxr200 (chavped)
if its spelt wrong its my fat fingers and daft auto correct on my tablet

[bugeye_bob]

[Copycat73]

[andyscooter]

I pud lid on before I leave the house

the gloves are the only things I need as I struggle to open the garage door with them on
____________________
gilera runner vxr200 (chavped)
if its spelt wrong its my fat fingers and daft auto correct on my tablet

[skatefreak]

Did have a sporty 125 2 (NSR) stroke for a number of years.
Starter motor done gone broke but a very easy bike to bump start so bumped it for... years... (did I mention I was mostly a Uni student at the time?)

Long story short, even a fickle thing like that (inb4 'aint no RS125') will be just fine to ride from cold as long as you take it nice and easily. Thrash it cold and you're asking for trouble but bimbling along getting up to temp is no issue.

Sawce, NSR never did assploded, no pistons changed in 4 years