Have I killed it already - RS125

[Smifffy]

One doesn't take a motorcycle for drives. One takes a motorcycle for a ride, a hoon, a fang, a blat, a run, a blast or a pootle. This list is not exhaustive, however the phrase drive is quite unacceptable.

As for the RS, I'll give ya $5 and a bag of chips. She's fucked.

How do you feel about 'strop' or 'scoot'?

[mossy1200]

Spark and compression and fuel/oxy should equal go. So your no fuel or hole in piston. Drain gearbox oil check for fuel and or piston pieces. Maybe reids or power valve fault causing fuel issues.

[Drew]

Spark and compression and fuel/oxy should equal go. So your no fuel or hole in piston. Drain gearbox oil check for fuel and or piston pieces. Maybe reids or power valve fault causing fuel issues.

Two stroke bro. Be catastrophic if there was piston bits in the oil.

But fuel in there indicates fucked crank seals=bang.

[blackdog]

You could have fowled up the plug...

There's the problem right there. It will never run right with a chicken in it.

[mossy1200]

Two stroke bro. Be catastrophic if there was piston bits in the oil.

But fuel in there indicates fucked crank seals=bang.

Yah lol its rs125. No way the piston could leave the sleeve head south and have a rod try and hide it.

[Drew]

Yah lol its rs125. No way the piston could leave the sleeve head south and have a rod try and hide it.

Oh that's all well possible of course. But it wouldn't turn over very nicely.

[jellywrestler]

Buy two plugs for it. wrap one in a plastic zip lock bag, wrap that in a rag,accompany it with a spark plug tool and stash it securely under the seat. Fuck pushing a bike for want of something as simple as a plug.

fixed it for ya

[Akzle]

jews did it.

[Drew]

fixed it for ya

Onya fella.

[tigertim20]

Newtown, real close to the hospital.



Right! Lets just hope it's that.. Gonna go grab some new tools to make this easier.
If the sparkplug is fouled then is it is simple as hitting the powerband more frequently or is it possibly an incorrect fuel mixture?


Fuck I'm happy I have a Haynes manual, i'd be ripping my hair out by now if it were for it

its a two stroke, you should start it up, let it warm up, then thrash the fucking thing like a cheap whore untill it runs out of gas. then repeat daily.

Buy two plugs for it. wrap one in a plastic zip lock bag, wrap that in a rag, and stash it securely under the seat. .

this is excellent advice for a 2 stroke owner!!!!

Alright things learnt from lifting up the tank/checking spark plug:

1. Fuel taps need to be turned completely around to stop the fuel from gushing out.
2. Fuel lines need to be long enough for the tank to be lifted up.. (This fuel line eventually got cut, I couldn't wiggle/rip it off the carb or the tank - it was about 9cm long -.-)

Got the spark plug out, tiny bit of oil and carbon on it, expect that's normal.
Plugs got heaps of spark, unforuntately.
Checked the cylinder as well, still compressing/moving the piston around.

Now I find it hard to put the bike into first from Neutral..

Any ideas?

ok firstly, do a quick google search on 'reading a spark plug' then compare your plug to the chart, its real simple to see whats going on.

secondly. a spark plug can spark quite happily outside the cylinder when testing, but still not run when put back in the bike. throw the plug away, they only cost a few bucks, and try again, that way, at the very least, you know for definite that the plug is not the issue.

when you are trying to change gears, are you just sitting on the bike? you need to rock the bike. i.e. from nuetral, roll the bike slowly forwards while trying to put it into gear. Bikes do not particularly like someone trying to make then go into gear when they are stationary, and even less so when they arent running at the time. I could explain this in depth to you, but it require you to have an understanding of murphys law and black magic in order for you to understand . . .

Let us know whats happened after you throw the plug away and try with a brand new one . . .

[BigAl]

After trying to start it, remove plug, does it look wet & smell of gas? If so then fuel is getting through.

You said it sparks so electrical prolly ok.

Try removing air cleaner & try to kick over, maybe blocked filter.

Could also try spraying some engine start/start ya bastard directly in air box and try starting.

[jellywrestler]

Onya fella.

only cause i went to change a set of plugs at the whakatiki hotel less than a month ago and while i had four new plugs and a plug tool it would only do the outer two plugs...

[jellywrestler]

You said it sparks so electrical prolly ok.

not to say the timing may have slipped for some reason,l had that in the middle of winter last year on the rimutakas, bloody taper fit on a lucas mag and the nut had come loose, yep my doing too!

[Taxythingy]

For sparkplug images, try this: http://www.dansmc.com/spark_plugs/sp...s_catalog.html

Is there a filter after the fuel tap? This could be clogged full of shite/rust.

Mossy and Bigal are on to it - spark, compression, fuel, air.

Did the plug smell of petrol when you pulled it out? Yes = fuel getting there.
While the plug's out, stick your thumb over the plughole and crank the bike. If you can't hold it there you have compression (some).
Do the airbox thing.
New plug for good measure - my RG150 would foul them up a bit & always ran better on a new one. $7 vs. a couple of hours of pissing around?

A good read through Dan's guide to bikes that don't start could help. http://www.dansmc.com/troubleshooting2.htm

My 2c.

[F5 Dave]

. . .
You said it sparks so electrical prolly ok.
. . ..

Wrong

. . .
secondly. a spark plug can spark quite happily outside the cylinder when testing, but still not run when put back in the bike. throw the plug away, . . .

Right

Really. he's right.

very right.