My blog of a Jetmax 250

[Zorge]

Maybe these symptoms are simply a consequence of the lower autumnal temperatures.

And what do you say, it is rainy in the Isle of Albion?

Well, that's something completely unexpected...

[ethron]

Hi Guys,
It's been a while since I updated my blog, so whats life like with my Jetmax?
Ok, I have noticed recently that when the engine is cold, when I stop at a junction the engine will sometimes stall. It feels as if the engine doesnt diengage from the transmission quick enough. I have tested this theory out by approching a junction or roundabout slowly, without stopping, and I can feel there is a definate lag before I feel it disengage this is after the time I would have normally stopped (sorry if this explanation sounds rubish, but this is my first experience on a sccot).
Because of the really rubbish weather here recently I have extended the pre-warm up period but it still happens, so I have adjusted my riding accordingly.
I dont like not being 100% about my scoot, especially in rush hour traffic.
This morning the scoot just died at a set of lights but started up again...
OK process of elimination time. I went over to bikerdocs post about the spark plug change, noted the number he had and ordered the NGK Iridium version. I will swap this out shortly and see if it improves - this is a wild card really, but I have to start somewhere. The weather here is getting increasingly cold and wet so I need to get this sorted.
Also as bikerdoc's & ethron's posts re: the poor rear light visibility, this has also been pointed out to me when my wife is following me in our 4x4, the rear box obscures it. I have ordered an LED stop & tail, which I will mount to the box (and hide the wiring). I have also ordered two small projector type LED driving lights which I intend fixing to the front.
Thats it for now, stay tuned for my next instalment
Oh here is a pic of our weather map, joys of UK climate -and yes, all the blues and greens - its the watery stuff
Attachment 8728

Hi WirralGhost Hunter, I know what you mean by the slow disengagement of the drive. I have noticed the same but not enough to stall so I have learned to live with it. I am not a mechanic but would it be the clutch mechanism in the transmission case?. Maybe the drive belt is not fully riding up the drive plate at idle ?. I hope you can solve it. That would be a real pest in traffic. I am interested where you plan to put your added driving lights on the Moto because I urgently want to upgrade my driving lights. Here in Perth WA we are forecast a wet Spring after a cold winter thankfully just about ended. Good Luck. Cheers

[Zorge]

Scooters and their transmission systems are not my cup of tea, but, based on my basic knowledge of it, I could have guessed that a little stiffer springs of centrifugal clutch would solve the problem.

[ethron]

Hi WirralGhost Hunter, I know what you mean by the slow disengagement of the drive. I have noticed the same but not enough to stall so I have learned to live with it. I am not a mechanic but would it be the clutch mechanism in the transmission case?. Maybe the drive belt is not fully riding up the drive plate at idle ?. I hope you can solve it. That would be a real pest in traffic. I am interested where you plan to put your added driving lights on the Moto because I urgently want to upgrade my driving lights. Here in Perth WA we are forecast a wet Spring after a cold winter thankfully just about ended. Good Luck. Cheers

I just took a photo of my extra stop lights.photo(4).jpgphoto(3).jpg

[WirralGhostHunter]

Hey ethron, nice job with your extra stop lights. My upgrade wont be as elegant.. I have a sealed stop/tail/plate led unit ordered which I will bolt to the outside of the box. As to the extra driving lights, these are small led projector type units, I have a couple of ideas where to mount them, but wont know for sure until they arrive. I will post pics here for you to have a look at, and also let you know how the lights perform. I was going to go down the route for "proper" HIDs as per bikerdocs upgrade, but the law he in the UK wont let me - risk of heavy penalty
This is the road test review that sold me on the Jetmax, you may have read it yourself already, but just in case
http://www.scootersales.com.au/News-...tmax-250i.aspx

And what do you say, it is rainy in the Isle of Albion?

Rainy - understatement.. We had a months downfall in one day.. My one hour commute home in a torrential downpour included riding through five separate flooded sections of road. The poor old Jetmax was literally past its floorboards deep in water. One policeman at the second one obviously thought I wouldn't make it, he gave me a nod and thumbs up at the other end. And its hammering down again today. On a plus note - the scoot didnt let me down

[prince666]

Hey ethron, nice job with your extra stop lights. My upgrade wont be as elegant.. I have a sealed stop/tail/plate led unit ordered which I will bolt to the outside of the box. As to the extra driving lights, these are small led projector type units, I have a couple of ideas where to mount them, but wont know for sure until they arrive. I will post pics here for you to have a look at, and also let you know how the lights perform. I was going to go down the route for "proper" HIDs as per bikerdocs upgrade, but the law he in the UK wont let me - risk of heavy penalty
This is the road test review that sold me on the Jetmax, you may have read it yourself already, but just in case
http://www.scootersales.com.au/News-...tmax-250i.aspx




Rainy - understatement.. We had a months downfall in one day.. My one hour commute home in a torrential downpour included riding through five separate flooded sections of road. The poor old Jetmax was literally past its floorboards deep in water. One policeman at the second one obviously thought I wouldn't make it, he gave me a nod and thumbs up at the other end. And its hammering down again today. On a plus note - the scoot didnt let me down

fuuny i read the same report and got one as well but the jetlux ??? same bike diffance skin just about to order a back boxs for mine as well

[bikerdoc]

Rainy - understatement.. We had a months downfall in one day.. My one hour commute home in a torrential downpour included riding through five separate flooded sections of road. The poor old Jetmax was literally past its floorboards deep in water. One policeman at the second one obviously thought I wouldn't make it, he gave me a nod and thumbs up at the other end. And its hammering down again today. On a plus note - the scoot didnt let me down

Guys, if you ride through any volume of water high enough to reach the rear drive unit/transmission please know that you will likely flood the inside of the casing, leading to slipping of the final drive belt and poor adherence between the drive belt, variator pulley surfaces and the rear clutch mechanism. Keep in mind there are breather hoses and what not that also are found around the rear transmission. Moving through water high enough will likely make it's way into these hoses and various orifices. If the transmission makes contact with water as in the case of riding through flooding, then it's a good idea to open up the drive casing to allow drying and possible cleaning of the interior components etc.

As for stalling as described in this thread, once the engine has reached operating temperature; I'd check filters first e.g. the air filter first, fuel filter and then if need be the spark plug. There are so many possible causes (bad fuel) but checking filters first is a start. I've done 45000km on my Jetmax and never had stalling issues once the engine has "warmed up" and only on very odd occasions when the engine is still cold and having not reached operating temperature. If nothing obvious can be found, then have your dealer check the ECU using their ECU programmable plug-in device.

[bikerdoc]

Jetlux uses the same engine and some of the same running gear as the Jetmax. However is has completely different "tupperware" smaller wheels, and lights amongst many other differences. The Jetlux is slightly lighter, and offers less protection from the elements in comparison to the Jemax. Some of the features of the Jetlux I like, but many I do not. YMMV.

[ethron]

Jetlux uses the same engine and some of the same running gear as the Jetmax. However is has completely different "tupperware" smaller wheels, and lights amongst many other differences. The Jetlux is slightly lighter, and offers less protection from the elements in comparison to the Jemax. Some of the features of the Jetlux I like, but many I do not. YMMV.

Thanks for the info on the Jetlux. I looked up the pics and seems a great design other than (as you say) the weather protection is not there as enjoyed on the Jetmax. It certainly looks like a good ride though. I guess I should have added on a previous post that my drive seems to disengage a bitlate and is mainly before it has warmed up properly. When I got the Jetmax it came with a short windscreen (something about Australian Standards???) so I got the dealer to order a tall screen and only paid A$90 for it. I have also added a Laminar Lip to the screen which tends to shoot the turbulance over the helmet. On very gusty windy days I'm aware that my Moto gets pushed around a lot and am wondering if the Top Box and taller windscreen has added to the "white knuckle" rides. I am wondering if others get pushed around on these type of days ?. It has only been one day that I had to leave the Moto at my visiting place and get the train home as I got blown almost into the adjacent lane and scared the #*%# out of me. I used to ride Triumph Thunderbird, Norton, AJS, Matchless and BSA bikes a fair while back and let my license lapse but I can't remember being blown around much at all. Maybe the "wall" of plastic, front and side on does not help. I wonder if Bikerdoc would mind showing the procedures for removing the panels to access headlights. I am a bit wary if I break any plastic tabs or clips etc. would appreciate. I have attached a photo of the flexible LED strips I inserted under the red plastic on the top box. They can be cut at intervals of 3 LEDs where you can have any number . Soldering is easy at the copper dots. Each section of three cost me $A2.75 so it was no big deal. Cheers .photo(1).JPG http://www.laminarlip.com/

[WirralGhostHunter]

Guys, if you ride through any volume of water high enough to reach the rear drive unit/transmission please know that you will likely flood the inside of the casing.

hey bikerdoc thanks for the heads up on that one, I will re-attempt to remove the casing again when the weather allows. I want to give it an oil change anyway. One thing you may be able to help me with, I was reading your posts and you recommend hypoid gear oil for the transmission - which makes perfect sense to me - but my manual recommends engine oil - could you let me know which spec hypoid you used.