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  #1  
Old 6th October 2011, 02:00 PM
wfitzgerald wfitzgerald is offline
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Default Dragstar 650 engine oil type recommendation

Hi All,

Can anyone recommend a good quality engine oil for a 2003 Yamaha Dragstar/Vstar 650cc classic?

The last oil I put in was RockOil, I think 10w30 (can't be sure of the grade off hand). This is the oil recommended by Clonmel Motorcycles or the one they sell at least.

Would a Castrol oil be better? Want to give the engine every chance of running smoothly :-)

Just looking at oils on the halfords website and there seems to be loads of Castrol brand oils (syn, semi-syn, power-racing, power-offroad etc) and various viscosities for example 10w30, 10w40, 10w50 etc.

I think it recommended in the manual, 20W40 or 10w30 would be the viscosity. Haven't seen any 20w40. Doesn't say synthetic or sem-synthetic in manual.

So if anyone knows what one is recommended let me know, I might swing by Halfords on way home this evening from Cork.

Also is there an engine flush that one can get for a bike? Any is there an recommendations of a brand to use?

Thanks a million and thanks to the forum in general for all your help to date,
Will.
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Old 6th October 2011, 03:01 PM
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LaFiamma LaFiamma is offline
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Default Re: Dragstar 650 engine oil type recommendation

I use castrol 10w40, oil filter is x302 you will see them stocked beside the oil in halfords, red box's, manual says change filter every second oil change, but for the price of them and if your all year like me just change it each time, and get yourself a haynes manual,

Edit: gonna state the obvious here... But don't use cage oil, it will cause the clutch to slip, and first chance you get have a rummage around between the rear fender and the batt compartment, you will find a black box with a seriel number starting with 5kp-..... Take that little bastard out, pull through the wiring and connector block, re connect and tape the little fucker up so to insulate and waterproof it, then leave it stashed in the batt compartment, ( make sure engine off, key out and batt disconnected first ) it will save you a lot of money and heartache later on...

Last edited by LaFiamma; 6th October 2011 at 03:09 PM.
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Old 6th October 2011, 03:25 PM
wfitzgerald wfitzgerald is offline
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Default Re: Dragstar 650 engine oil type recommendation

Thanks for the advice LaFiamma.

I'd be thinking like you, just change the oil filter each time.

It this the version of Castrol you use?

Castrol Power 1 4T 10W/40 Motorcycle Engine Oil

http://www.halfords.ie/webapp/wcs/st...egoryId_212353

I also see

Castrol Power 1 Racing 4T 10W/40 Motorcycle Engine Oil - 4ltr

http://www.halfords.ie/webapp/wcs/st...egoryId_212353

Both are 10w40.

Is there much difference in 10w40 and 10w30 when used on a dragstar 650?
I hope the RockOil I was given was 10w30! I'll know when i get back to Tipp this evening.

I will certainly try and find that little box you speak of.
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Old 6th October 2011, 03:29 PM
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LaFiamma LaFiamma is offline
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Default Re: Dragstar 650 engine oil type recommendation

1st one, and I've never bothered with 10w30, always stuck with the 40, and seriously... move that relay... Best of luck
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