Fuel pump?

[george_n_texas]

Anyone ever use an electric fuel pump? I'm not sure but I am thinking maybe part of my engine warm-up is due to a lack of fuel flow. If I park my bike for more than a few minutes I gotta choke it for maybe half a minute then rev it up with clutch engaged or pedal a bit and the thing all the sudden pics up power. It just smacks of a clogged fuel filter / lack of fuel pressure to me. I found a fuel pump for $10 at the pawn shop...same one I got the "dog bone" wrench in second pic.

[2door]

George,
Not practical. First of all, it's just not necessary. The gravity feed system will deliver all the fuel your little engine can use. Second, the float and needle valve are designed for gravity feed and will not be able to hold back the pressure from a pump. You'll sink the float and flood the engine. Third, that pump is going to use a lot of juice. You'll need to haul around a good sized battery or a very long extension cord to keep it working. Check your fuel flow. Remove the fuel line from the carburetor, open the petcock and if you have s steady flow of fuel, even a very thin stream, it is sufficient. Your cold start problem is not a lack of fuel. Choking is not an uncommon necessity with these engines. Sometimes just partial choke and shot of prime with the tickler button is all you'll need. Forget the pump.
Tom

[george_n_texas]

What's a tickler button?

[2door]

Originally Posted by george_n_texas

What's a tickler button?

The little spring loaded button, left side of carburetor, next to the idle speed screw. It pushes down on the float inside the carburetor and gives the engine a little extra fuel for starting. Usually it only takes a couple of seconds. Depress it, hold it down for 2 or 3 seconds then start your bike.

George,
I've just been informed by Fairracing that some of the newer Grubee carbs came without the tickler (primer). If you have this engine you might not have that feature.
Tom

[george_n_texas]

Thanks...as usual I read instructions AFTER I have a problem with assembly LOL. I was wonderin what that thing was.

[xlite]

Originally Posted by 2door

You'll need to haul around a good sized battery or a very long extension cord to keep it working.

LOL! Good one Tom.

[Junster]

Ya no fuel pump but that is a *****in' wrench. Uh a really great wrench...

[TheOtherStyle]

Them wrenches are the best tool an oil jockey can have. When I worked for a local garage, the boss kept one stuck to the side of the oil catch can. Only once did I ever have to head to the tool box for another size (some weird foreign car that had even weirder hardware...)

[jcchappy]

Was it a BMW that used "das special tool"

[TheOtherStyle]

Actually no.. I think it was a Hyundai..