Petrol leak DR650

**crisbie** · #1 13 Sep 2008

DR650 fuel leak
I have just fitted a safari tank to my DR650, and the bike runs fine. But fuel runs out the overflow pipe as soon as the taps are tuned on.
What has happen? and how do I stop this? Because petrol is expensive!

Chris B

**Nigel Marx** · #2 13 Sep 2008

The overflow pipe from the tank or from the carb? I understand that the DR, like many Suzukis, has a vacuum operated automatic fuel valve. This works by using the manifold vacuum to pull a diaphragm inside the fuel tap assembly. There will be a hose that goes from the inlet manifold to the tap. Maybe the hoses are not on the correct fittings?

Regards

Nigel

**crisbie** · #3 13 Sep 2008

It leaks from the overflow from the carby. The vacum pipe has been kinked so it does not draw air into carb.

Chris B

**beddhist** · #4 13 Sep 2008

I guess you have dirt in the needle valve. Perhaps it was hiding in the new tank's petrol tap(s).

**crisbie** · #5 14 Sep 2008

Thanks, I will pull of the carby and clean the needle valve.

Chris

**Nigel Marx** · #6 14 Sep 2008

A couple of sharp taps with the handle end of a large screwdriver on the float bowl of the carb can sometimes work too. Nothing to loose!

Regards

Nigel in NZ

**lecap** · #7 24 Oct 2008

If the screwdriver taps don't help lift the arse end of the bike and drop it back onto the ground.
If you can't lift up the arse end of your DR you should get yourself a gym contract as you won't find a lighter 650