Help! Te 630 almost impossible to start when cold

[julienl]

98 ron in france

 

[Rotax_655]

I think 102 is rich with the PU plug . Maybe

Yes

I think you have a too greasy carburetion to a minimum
102% is too much
better the factory setting equal to 100
Before buying a new temperature sensor you can take a test

 

[julienl]

Yes i'll testing with ibeat, i have the airbox open, is it no dangerous the low range at 100 ?

 

[julienl]

Other question please,
Have you already seen lost the idle screw?
The mine with the p.u. plug is very loosened.
You think the throttle setting is necessary ?

 

[Rotax_655]

Yes i'll testing with ibeat, i have the airbox open, is it no dangerous the low range at 100 ?

I tell you my opinion.
the carburetion
100
100
100
standard intervenes
at 1/3
2/3
3/3
of the engine speed
therefore the first intervention set (from the minimum engine speed to 1/3 of the engine speed) can hardly cause damage
I do not know if I could explain myself.
take a test
if with the value 100 the bike starts you have solved the problem.
furthermore you will see that with "100" also the idling regulation screw will come back to work.
it makes no sense to unscrew it too much.
risk of losing it ....

 

[julienl]

Thanks rotax, i , ll testing, but since one week paris is on the snow

 

[Rotax_655]

Thanks rotax, i , ll testing, but since one week paris is on the snow

Yes, I saw on TV paris full of snow
I get the creeps if I give Rome all the snow in Paris
With the cold it will be necessary to use the choke for your TE

 

[DYNOBOB]

Hello dyno, i have
102 / 108 / 118
And 1800 rpm idle ( iridium spark plug)

The difference between 100 and 102 is not going to make the bike hard to start.

We have to remember that the ECUs for Euro bikes are a different part number then US bikes. They may want completely different iBeat numbers, I have no way of telling you guys for sure (unless someone sends me their ecu to put on my bike and dyno).

I'd recommend trying 90 to 110 on the low setting and see if one direction does better.

I'm not sure what you mean by "idle screw is too loosened". 1800rpm is normal idle.

.

 

[Rotax_655]

I can only say that of factory in Italy and in Europe my anti-pollution standard Euro 3 is set at 100/100/100.
this with standard silencers with catalyst and lambda probe installed.
I assume that the lambda, however, keeps under control the excess fuel when it is installed.
Julien just needs to understand why he's not leaving when it's cold.
He just has to do some low-speed tests.
The worst thing with a carburetion "too" lean and that the engine idles off with a big ciuff ...

 

[Rotax_655]

if I had an extra ECU, I would gladly send it to you to try it.
we must take into account that the centralities TE and SM are not the same!
Julien please can you put a picture of your centealina?
to read the serial numbers.
I remember that journalists who tested both motorcycles said in 2010 that the engines were very different as the supply of power and torque.
the MS is more nervous and explosive, suitable for road use
Tighten and adjust the TE suitable for enduro use.
All this difference only by intervening on the ECU's ignition and mapping advances

 

[Rotax_655]

My ECU

 

[ceevu]

Iridium plugs do foul much easier than standard,if its hard to start. I have same hard start problem(with 630),only in freezing temps but still,and did broke pretty new plug just by starting and not getting it to run. Put old one in,and it started and runs ok. Only thing left is gas,Atleast partly. I put it in tank at summer,and i believe winter quality is different,easier to ignite at cold temp.(This struck to me when my 610 didnt start either. After changing fuel to winter quality,it starts and runs fine. Bigger bikes didnt mind what fuel they had,these seems to do mind.)
Tried different temp sensor,changed fuel pump,given aux power from car battery etc. no help. At summer,nothing to worry,but below zero degrees it gets very difficult to get it to run.

 

[julienl]

thanks guys, tody i was 8° on my garage, and my bike with ibeat say 10° on the sensor water temp, same things for the sensor of air temp.
After, i have change the setting for 100/108/118 and with starter lever strong drawn, its starting ok. but i'm not outdoor with 0°. It's still better.

 

[julienl]

 

[julienl]

The difference between 100 and 102 is not going to make the bike hard to start.

We have to remember that the ECUs for Euro bikes are a different part number then US bikes. They may want completely different iBeat numbers, I have no way of telling you guys for sure (unless someone sends me their ecu to put on my bike and dyno).

I'd recommend trying 90 to 110 on the low setting and see if one direction does better.

I'm not sure what you mean by "idle screw is too loosened". 1800rpm is normal idle.

.

hello Dyno, i have three rounds loosened screw for have 1800 RPM on IDLE, it's ok ?

 

[julienl]

hello, for the differents ecu models, i find this :
https://www.greenlandmx.fr/fr/oempa..._Electrical_Parts/01|~47|~0010/01|~47|~0065/y

 

[Rotax_655]

Therefore
CDI Serial number
8000B0564 behind it reads
Version SM - 8000H1643
Version TE - 8000H1642
For european market

 

[Rotax_655]

thanks guys, tody i was 8° on my garage, and my bike with ibeat say 10° on the sensor water temp, same things for the sensor of air temp.
After, i have change the setting for 100/108/118 and with starter lever strong drawn, its starting ok. but i'm not outdoor with 0°. It's still better.
View attachment 86751

so do you feel satisfied?
lowering the value from 102 to 100 the engine starts better when it's cold?

 

[julienl]

Yes, but i dont touch my bike few one week because of snow and work. All the same, i have dismounted my airbox for paste the nut ( or screw, excuse my english .
I m working in garage Renault, its more simple for me.

 

[julienl]