cooling issues

[bikercouple]

I have a 1983 venture. I'm having cooling issues. After about 5 mins of the bike idling in driveway. Temp gauge raises and water pump cover started leaking anti freeze from hole. I took cover off and plastic impeller looks goood. I started the engine and rubbed something against the impeller to see if it was slipping. No slippage that I seen. Radiator was full and the reservoir bottle was to.

Any ideas of the issue. Could the thermostat be stuck closed ? I haven't checked that yet.

Thank you,

Bikercouple

[Venturous Randy]

It sounds like you do have a leak in the water pump. At the front of the engine under the radiator, you will see some plumbing and a plastic black hex with lettering on it. That is the bypass valve and the tops of the letters should be pointing toward the 5 clock position. If you twist it around, it will bypass the thermostat. You can try to see if that makes a difference, but you will still need to do something with the water pump. I would suggest picking up an MKII with the metal impeller.

RandyA

[bikercouple]

Thank you. Where can I buy a metal water pump at ?

[Venturous Randy]

http://www.ebay.com/itm/87-YAMAHA-VENTURE-XVZ1300-XVZ-1300-YM318-ENGINE-COOLANT-WATER-PUMP-HOUSING-COVER-/291279414233?pt=Motorcycles_Parts_Accessories&hash=item43d19b23d9&vxp=mtr

 

http://www.ebay.com/itm/83-XVZ1200-YAMAHA-VENTURE-ROYALE-Water-pump-/171520877471?pt=Motorcycles_Parts_Accessories&hash=item27ef70e39f&vxp=mtr

 

Here is a couple on ebay. The 83 appears to be metal and if so, it has been upgraded. It also has the elbow attached and the elbow itself is going for about $50 at Yamaha.

RandyA

[bikercouple]

Should I be worried about buying a used one and have the same issue I have now ?

[Venturous Randy]

Should I be worried about buying a used one and have the same issue I have now ?

 

You could buy the 83 for $20 and get the seals to rebuild it and be good to go. The one on my bike came off an 86 engine I picked up many years ago and has never leaked and probably has 140,000 miles on it. You just never know, but if I was going to put seals in one, I would want one with the metal impeller.

RandyA

[bikercouple]

I bought a metal impeller and all new seals, O rings, bearing and gasket. I will let you know when I get it back together and the problem is fixed.

Thank you for the knowledge !!!

 

Bikercouple