Choke lever on RS125

[Crestfallen]

Please, please can someone tell me what position the choke lever needs to be in in order to be off on my new RS125. Does it have to be pushed forward or pulled back? I haven't a clue and don't want to be riding round with the choke on all the time.

Many thanks for all your help.

[Robby]

you pull out the choke to start the bike, so i would assume pulled back. to test. pull it back while its running and rev it hard, then shove the choke in and rev it hard. it will rev more easily with the choke closed.

[Kickstart]

Hi

Sitting on the bike, pull the choke lever towards you to put the choke on, push it away from you to turn it off. The RS is set up fairly rich, and mine rarely needs choke to start (only in the depths of winter, or if I have been cruel and not used it for a couple of months)

Personally I would say start the bike and ride off immediatly, only using the choke if you really need it and knocking it off as soon as possible. Just make sure that you do not rev the engine hard until it is fully up to temp (ie, keep the revs under 5000rpm until it is at about 80 degrees). Watch out for the temp dropping suddenly as it gets to 80 and the thermostat opens

All the best

Keith

[Crestfallen]

Thanks to everyone, especially Keith the Guru. I think i have it sorted now.

[bikerboy]

i have a rs125r and yes you do pull it towards you to put it on and push it forward to turn it off
____________________
It's time to race!!! here i come!!!

[Keen]

The choke on my bike works the same.

Keith- its damaging to leave the bike ticking over with the choke on while you wait for it to warm up?

[Kickstart]

Hi

Leaving the choke on will wreck the plug more quickly, but the biggest problem (especially on 4 strokes) is that the petrol is a very good degreasant. It does a wonderful job of washing the oil off the cylinder walls and the bearings, so shortening their lives.

The other problem is that with the choke on the engine is revving higher. Kawasaki chokes are famous for either doing nothing or revving the knackers off the engine

All the best

Keith

[Keen]

thanks

[Crestfallen]

Dear Keith or anyone who knows about RS125 powervalves.

I would like to know if my bike has a powervalve. I have lifted the petrol tank and had a look and am not entirely sure what i'm looking for.

I can see above where the exhaust first exits the engine. There looks to be 2 springs, 1 on each side. Then, above that, there is a triangle shaped device with a nut bolt on each side. This is bolted on horizontally. This device has a black lead leading from it.
Also, on the right-hand side of the battery, there is a gold cylinder about 2 inches long which looks like it has 2 wires leading from it. It appears to be plugged into another wire. Is this the server motor?

Many thanks for any info.

[Crestfallen]

To add to the above i read a bit and have this-

If a bike doesnt have a powervalve, it is restricted to no higher than 8000 rpm in any gear? Is this true?

My engine is still bedding in so i cant go above 5000rpm at the moment although it once went to 11000rpm when i was in neutral gear. Does this getting to 11000rpm mean i definitely have a powervalve or is revving in neutral gear different to revving in a proper gear,
ie, a bike without a powervalve will redline in neutral gear but won't redline when actually riding in gear, ie 1st, 2nd, 3rd etc??

Please help a thickie.

Regards.

[Kickstart]

Hi

From your description it is 99% likely you have a power valve.

The 8000rpm is where the valve opens. Without the valve the power will tail off rapidly above 8000, but it will still go there (it is just that it is making so little power you may as well change up a gear)

All the best

Keith

[Crestfallen]

Dear Keith

Thanks for replying. You seem to post replies to everyone as you know it all.

Does this pic help identify a powervalve? I am posting a link so others don't have to see the nasty Aprilia image load up on this forum unless they choose to.
https://website.lineone.net/~draconi/engine.jpg
If the arrow isn't pointing to a powervalve, then where is it pointing to?
My engine definitely has a part in the same place with a wire leading from it.

Is the powervalve in the same position on a NSR125 as well? My mate has one and none of us know much about bikes as you can probable tell by my stupid questions.

Regards.

[Kickstart]

Hi

Yes, that is where the power valve bolts in, and that engine looks like it has the power valve in place.

The NSR power valve is a in a similar position internally, but it is operated by a bar going through the barrel which rotates.

All the best

Keith