Why won't my SYM Jet motor scooter start?

by Paul
(Derbyshire, UK)

original one on bike

original one on bike

original one on bike new one off same year??

I have a 2006 05 reg SYM Jet Euro X 50cc moped.

When I last rode it (a week ago) it ran OK but felt a bit lumpy. I smelled an electrical burning smell, so pulled the front cover off and noticed the relay with the red and green wire was very hot, I waited till it cooled down and inspected it and found the ceramic? was blackened and cracked...

I replaced it with another one from the same year and model and it was different? The one on the bike was 2 bars connected with a bracket with the green wire in 1 and the red wire in the other. The new one is only one bar with the wires on either end...

I also replaced the battery and the fuse (which had blown). All it does now is turn over and eventually floods (strong smell of petrol). There is a constant spark (after I dried and cleaned up the spark plug), but it just won't fire up on the button or kickstart.

Please help as I'm really needing this bike to work.

Comments for Why won't my SYM Jet motor scooter start?

Click here to add your own comments

Nov 14, 2015
michael NEW
by: Anonymous

y wont my scooter start up she wants to but she just not ticking over at all any ideas

Oct 12, 2014
Tune NEW
by: Anonymous

Tuning the carburator might do the trick.

Oct 11, 2014
sym jet NEW
by: Anonymous

I have a sym jet euro x 100 it dosnt start on it's own battery but dose off car when engines one but still take time for it to start any ideas plz

Jul 23, 2014
sym jet NEW
by: Anonymous

In 2006 roughly sym changed the sttling of the sym jet basix, known as a sym jet euro 50 x, parts for these bikes are avaiable as i have a W reg ped, search stm jet basix, this will give you all the parts you need, scooter works and CMPO are good sites for both the new and old model

May 22, 2013
sym problem NEW
by: brend

my sym jet 50 euro x has just had a engine rebuild new choke and spark plug plus battery was running then cut out and wont start up has a spark but smells like it is flooding and ideas ???

May 22, 2013
sym problem NEW
by: brend

my sym jet 50 euro x has just had a engine rebuild new choke and spark plug plus battery was running then cut out and wont start up has a spark but smells like it is flooding and ideas ???

Sep 21, 2011
Sym Jet resistors
by: tuxster

The 2-bar type resistor is a standard part of a Sym Jet Basix. Funny that your Euro X is fitted with it, when the one for the Euro X is the single bar resistor.

I would suggest purchasing the 2-bar type resistor for the Sym Jet Basix as this was the one you pulled out from your scooter.

Hope this helps.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Scooter Questions - Starting Scooters.

When you're done here, you may also be interested in reading some of these popular pages:

If you like to talk scooters, check out our motor scooter forums!

Battery Tender Junior in package

A battery tender like the Battery Tender Jr. can make all the difference in whether your scooter will start right up each spring, after being stored for months.

Just about every scooter owner needs to have a battery tender, sometimes called a trickle charger. Unless you are lucky enough to live in a climate where you can ride all year long, chances are your scooter will be put on ice, figuratively-speaking, for at least a couple months every winter.

One of the key steps in winterizing a scooter is to protect your battery from draining during its "rest" period. This can – and will – happen if you leave your battery sitting untended in your cold scooter over the winter, even if it's in a garage or shed.

Read our review or go right to Amazon.com to buy this highly recommended Battery Tender Jr NOW...


ATTENTION! I have had to delete the Scooter Forum for this site, unfortunately. Despite my best efforts, I could not adequately prevent daily attacks by hackers and spammers. Even though most of their posts did not go public, they still cluttered up my website host's server space, jeopardizing my account. I appreciate everyone's contributions over the past few years and I apologize for having to do this.

Wondering why your scooter question never got posted?

Chances are, there is a good reason. Did you...

If you "checked yes" on any of the points above, then I've deleted your post. Sorry, but I have standards. Feel free to re-submit, following the instructions I have everywhere on the site.

Also... all submissions have to be reviewed by me, and I am currently backlogged. Comments go live without approval, but still take 30 to 60 minutes to show up, so don't repost them, please.

This Week's Highlights

Share Your Scooter Blog Here
Your Help Needed!

We have lots of unanswered questions... can you help? Also, check out our newest eScooter Club members We are growing every week!

Keep Up to Date

Follow us on our Facebook Fan Page Follow our updates on Twitter
Subscribe to my motor scooter blog Subscribe to our RSS feed in your feed reader

Help Us Grow

Support This Site

I support this site by using affiliate marketing and running Google ads. I earn a small commission when you purchase items here, which helps to keep the site afloat. Thank you for your support.

XML RSSSubscribe To This Site

follow us in feedly
Add to My Yahoo!
Add to My MSN
Subscribe with Bloglines