Mr Gasket instructions ... I think

[Mad Dog]

Well it died on me today... on the hiway ... maybe 1-1/2 mile from home. Bet my life it was a fuel problem. Got it pulled over, and while playing around with it I notice that when I turned the key on there was no more "tick-tick-tick" - fuel pump points...???

I think I have that right... but the bike ended up starting and I made it home no problem. But I still have no tick tick tick

So there are a lot of threads on the points and such, but I think I want to go the Mr Gasket route and be done with this. ANd where is the fuel pump ... so I can give it a good whack!

I cannot fine the thread on installing the Mr Gasket pump. I have seen it before but I cant find it now. Can someone please post the link...

and any opinions...?

 

TIA

Mike

[etcswjoe]

Here you go:

http://www.venturerider.org/forum/showthread.php?86265-Mr-Gasket-Fuel-Pump-Conversion

 

 

I did not cut mine apart it is just laying behind the cover.

 

This is how mine looks

http://i672.photobucket.com/albums/vv87/dawarren77377/Bike%20shots/DSCF3283.jpg

 

 

Another one

http://www.venturerider.org/forum/showthread.php?40359-Can-t-Keep-bike-running-ANY-HELP/page2&p=381479&highlight=fuel%20pump#post381479

[djh3]

Keep us updated on how it goes. Might as well replace the fuel filter while your in there.

[Mad Dog]

Ok... Last night I had no clicking noise but this morning of course there was ... and the bike is running fine. Going with a new fuel filter and the Mr Gasket if I can find it in stock. Thanks all I'll keep you posted.

[Motiv]

Is it possible to put a bypass hose with a shut-off valve between the inlet and outlet of the pump in case of malfunction? And will gravity take the fuel to the carbs if you loosen the fuel tank cap.

[Mad Dog]

Is it possible to put a bypass hose with a shut-off valve between the inlet and outlet of the pump in case of malfunction? And will gravity take the fuel to the carbs if you loosen the fuel tank cap.

 

You are on the right track from what I am reading. Check this out

http://www.venturerider.org/forum/showthread.php?92128-PBJMAN-s-big-thread-on-Fuel-Pump-Rebuilding-Gravity-Feed-and-Cheap-Ebay-Fuel-Pumps!

[vzuden]

@Mad Dog,

if you use the Mr Gasket pump you will need to be sure to turn the fuel off at the fuel tank petcock when you turn the bike off. This pump does not have the built in shut off valve to prevent fuel from potentially filling your cylinders with fuel resulting hydrostatic lock

[Mad Dog]

@Mad Dog,

if you use the Mr Gasket pump you will need to be sure to turn the fuel off at the fuel tank petcock when you turn the bike off. This pump does not have the built in shut off valve to prevent fuel from potentially filling your cylinders with fuel resulting hydrostatic lock

 

Yes, thanks... I was reading about that. The pump isn't the best choice I know, but it is done in about 4 hours - including the research time and running for parts... I did read that not everyone shuts theirs off... so I suppose this is only a problem when the needle valves at the carb floats dont shut tight.... right?

[Mad Dog]

So I went with the Mr Gasket 42s and it took me 4 hours = including the research time here and going for parts. Like someone else said, I didn't cut the case, so the install isn't as neat, but its in and working. I think I will cut the case and mount it a little better at a later date. I have had it running for 30 minutes or so and by listening and the throttle response - and no more popping - I think this was a problem for a while. I have been starting to think it was a bit sluggish on the highway... now I'm pretty sure that it was and the fuel pump was the problem. I also relocated the fuel filter to under the seat.... very good piece of advice. I'll repost here after I get it on the highway!

 

Thanks to all for the advice and previous posts.

Grateful as always

[djh3]

Mine has been in for shoot like 2yr or more. I have never had a problem with excess fuel running to carbs whit the bike off. I do not close off the petcock when parking. Maybe I have just been lucky, or ....... There shouldn't be any pressure building up in the tank to force the fuel towards the carbs anyways as the tank is vented. If I could find my old pump I would investigate weather or not it has a check valve in it, I suspect not. So long story short I dont close the petcock off and have not had a problem with flooding.

[vzuden]

If the needle valve hangs up and fuel flows into the cylinder it could result in catastrophic engine failure. If the piston is down in its stroke with fuel in the cylinder when you crank the engine the piston travel cannot compress the fuel and you will have, at the least, a bent rod. I have had hydrostatic lock but I was fortunate the cylinder with the fuel had the piston at its uppermost travel. So in my case when hit the starter button the starter engaged but the engine was locked up.

 

I pulled the spark plugs, cranked it over to blow the fuel out, changed the oil, flushed the float bowls, and was good to go. A tiny fleck of dirt can do this and you don't have any warning or any symptoms of any kind. I now turn the fuel off as a habit every time I turn the engine off

[Blackmax88]

By-passing a non functioning fuel pump will work providing you have sufficient head of fuel in the tank. The problem is that the seat diameter in the Mikuni carb float valves is smaller in engines with a (low) pressurized fuel system. The float valve seats used with gravity fed carbs have a larger diameter and capacity to flow fuel.

One risk with by-passing the pump is that if your right hand makes the engine use more fuel than the (normally pressurized) float valve can pass (under gravity), you run the risk of leaning out the mixture with consequential piston damage.

FWIW