VT250 don't go! Anyone able to help?

**Snow** · 13th November 2013, 20:30

I bought a VT250 that wasn't going but supposedly just needed a CDI. I have now tried 2 CDI units that are supposedly good units and still have no spark. My bike mechanic that has checked it out is stumped. Does anyone have the same bike that I can try my CDI units in to confirm that they are working and that the fault is somewhere else in the bike. It is a VT250F2-H 1987 VT Super Sport model (jap import).

**Tigadee** · 15th November 2013, 07:38

These old bikes, aye? I had a 1991 Yamaha Radian 600 that had this similar issue. I also changed the CDI to no avail...

Have you checked the following?
1. Battery (obvious, I know)
2. Battery terminals
3. Electrical earths
4. Kick stand cut-off switch (if the bike has that feature)
5. Start switch block (internally)
6. Fuel tap/filter (may be clogged or blocked)
7. Spark plugs
8. Starter/solenoid

**F5 Dave** · 15th November 2013, 09:33

So it kinda points to the stator coil or pulsar coil (both hidden under left hand engine cover in the oil).

A simple multimeter test may, or equally may-not find a problem, needs better test than that.

**F5 Dave** · 15th November 2013, 09:34

So it kinda points to the stator coil or pulsar coil (both hidden under left hand engine cover in the oil).

A simple multimeter test may, or equally may-not find a problem, needs better test than that.

When you do get it going you'll likely find the cam chain tensioner is poked.

**Snow** · 8th December 2013, 18:14

Yeah everything has been checked out. It should go! There does not seem to be a conclusive test to check out the CDI units hence me asking if anyone has the same bike so i can try the CDI units in their bike. If they work in another bike then I definitely have a problem somewhere else.

**F5 Dave** · 8th December 2013, 20:29

So to quote myself;

Originally Posted by F5 Dave

So it kinda points to the stator coil or pulsar coil (both hidden under left hand engine cover in the oil).

A simple multimeter test may, or equally may-not find a problem, needs better test than that. . .

Send stator and pulser to be rewound

**James Deuce** · 8th December 2013, 20:38

Originally Posted by F5 Dave

So to quote myself;
Send stator and pulser to be rewound

He's not listening. You can't possibly be right. They sound like made up words from Star Trek, a la "Flux Capacitor".

**F5 Dave** · 8th December 2013, 21:11

Yeah too hard. Try replace the fuse, empty the ash tray and check the tyre pressures, but be sure to use Japanese air.

**Snow** · 16th June 2014, 21:34

Should be simple but I must be even more simple. I have replaced the pulse coils and fitted pulse coils from the same engine that I have the good CDI from (even though the previous coils measured 4 volts on winding over the engine) and still no spark. Running out of ideas!!

**Akzle** · 16th June 2014, 21:41

Originally Posted by Snow

Should be simple but I must be even more simple. I have replaced the pulse coils and fitted pulse coils from the same engine that I have the good CDI from (even though the previous coils measured 4 volts on winding over the engine) and still no spark. Running out of ideas!!

measure everything

**FJRider** · 16th June 2014, 21:51

Originally Posted by Akzle

measure everything

Ok .... 9 inches ...

**Snow** · 5th October 2014, 10:37

Had another burst of interest in getting the bike going. Everything on the bike works - pulse coils. ignition coils, spark plugs and leads, kills switch, clutch switch, rev counter, every thing I can think of on the bike has been tested!! The only thing that I can't test is the ignition unit. so has anyone out there got one of these VT250F2 that I can plug my ignition unit into to confirm that it is working?

**awayatc** · 5th October 2014, 11:22

spend some time googling which other bikes used same cdi....
you will most likely find that there are a few others using same cdi unit....
maybe some on that list will be easier to find...
good luck

**hayd3n** · 5th October 2014, 12:15

Originally Posted by Snow

Had another burst of interest in getting the bike going. Everything on the bike works - pulse coils. ignition coils, spark plugs and leads, kills switch, clutch switch, rev counter, every thing I can think of on the bike has been tested!! The only thing that I can't test is the ignition unit. so has anyone out there got one of these VT250F2 that I can plug my ignition unit into to confirm that it is working?

side stand switch?