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Some were air cooled and some liquid cooled - with a radiator.
The laws of physics dictate that you can compress a gas but you cant compress a liquid - so if the coolant gets hot and expands it will need a place to overflow to.
This is very probably the coolant expansion bottle you mention.
I know nothing of motorcycles - so I could easily be wrong.
electrical fault Yamaha Virago 125 1999?the bike starts and runs fine but none of the lights work indicators headlight taillight neutral light none at all. I have checked the 2 fuses and they show continuity. The horn works ok. Could this be the CDI unit that is causing the fault?...Click here for how to mend it.
Yamaha Neos 4 ?If I change the Cdi to a Yamaha vity 125 Cdi will my bike still work and run faster ?...Click here for the repair.
Yamaha DTR 125 L reg ?Hiya, just wondering if anyone coud tell me the radiator water capacity for this bike (Yamaha DTR 125 L reg)...Click here for the fix.
yamaha vity 125 engine cutting out?my scooter engine keeps cutting out. It initially stops revving at the throttle, then when I come to a halt it cuts out altogether. When this happens, I have to turn the ignition off, before it restarts. it does generally fire up first time.
The engine cuts out randomly at various speeds....Click here for the repair.
how can i fix my motorbike yamaha 125?my 6 year old ybr125 just cut out, there seems to be no power to lights or electric ignition. the kick start wont work now either...Click here for how to mend it.
any 1 no how i can make my yamaha cygnus x 125 faster it only does 60 ?can any 1 tell me hoe to make my yamaha ccygnus x 125 faster its too slow only does 60 any idears please...Click here for how to mend it.
My yamaha 125 battery is flat,how do i recharge the battery?Im unable to start my scooter and the battery is flat.how do I recharge the battery?...Click here for the fix.
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