02 Viper removing coolant before pulling cylinders.

[88thunder]

Have a broken power valve bolt in cylinder. Going to remove cylinder & don't want to dump coolant in crank case. Is there drain low on the case ? Are there any tricks to getting air out of cooling system

 

[mrviper700]

ya, on top of the waterpump cover there is a silver headed (10mm socket) bolt, says drain next to it. its the only silver colored one and has a copper sealing washer, remove that bolt and it will drain the topend.

 

[tomseal6]

you can catch coolant with zip lock bags to eliminate mess or if you plan on reusing

 

[88thunder]

Thanks !!!

 

[Racenut13]

Thanks !!!

Shop vac


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[A couple of bucks]

For a complete flush.

 

[northern srx]

Another GREAT idea! I'm stealing that one!

 

[A couple of bucks]

Works on vehicles too. Just need to remove the thermostat and stuff a golf ball tee in the overflow tube.

 

[super1c]

I always just unhook rear coolant hose and suck out with shop vac. Coolants cheap and needs a good refresh now and then. Just use safe for aluminum block, silica free. 50/50 is fine but I use 60/40 Yamaha specs.