Udjeni
Well-known member
I have a 4 gal. gravity-feed Jazz fuel cell that I sometimes mount on my '07. I have a few issues with it and before I go back to the guy that made the mounting plate for me, I want to ask for opinions here.
Here's the current setup:
The mounting plate viewed from the top, rear:
And upside down, from the rear:
In the above photo you can see a mod that was made after initial manufacture: I wanted the front of the tank slightly raised so more of the fuel will drain out the back, so the two pillars were lengthend slightly.
Here you can see where to additional mounting points were made in the bracket (is that what it's called?) under the seat.
The main issues with the current design is that it is too low. My initial briefing to the fabricator was that I wanted the fuel cell as low as possible. However, the current position has lead the following issues:
This would give one options to release the stress on the rear fuel fitting (either by lowering the tap position or lengthening the fuel line - currently there isn't room to lengthen it). This would also provide some storage area underneath. What I can't quite figure out is the best way to raise it, especially if I want some (preferrably dry) storage space underneath the cell.
I had a look at Warchild's photos and it gives me some ideas, but I was wondering if anyone has more detailed photos/pictures of mounting plates/brackets that leaves the cell a bit higher?
(*) Re: air lock. I was doing a long ride and after a couple of fill-ups the aux. cell stopped draining properly into the main tank. At my destination an engineering friend, who's mechanical/troubleshooting abilities are way beyond mine had a look at the setup and came to the conclusion that an air lock had formed due to the routing of the fuel line (the line had shifted and went slightly upwards after leaving the tap between the cell and the main tank). We corrected that and that seems to have taken care of the issue... for a while. I recently had another case of intermittant draining and after having read this thread I am wondering if it is an air lock, although, I did not experience the problems that thread either.
Here's the current setup:
The mounting plate viewed from the top, rear:
And upside down, from the rear:
In the above photo you can see a mod that was made after initial manufacture: I wanted the front of the tank slightly raised so more of the fuel will drain out the back, so the two pillars were lengthend slightly.
Here you can see where to additional mounting points were made in the bracket (is that what it's called?) under the seat.
The main issues with the current design is that it is too low. My initial briefing to the fabricator was that I wanted the fuel cell as low as possible. However, the current position has lead the following issues:
- It's difficult to remove the front seat if the bracket is in place.
- I lose storage space under the rear seat
- The cell damages the pillion handrails (hence the duct tape you can see there)
- An air lock sometimes develop in the fuel line (see (*) below)
- The fuel line from the cell to the tap is too short/the angle is too acute with the result the line/connector into the tank is under stress and develops a slow leak.
This would give one options to release the stress on the rear fuel fitting (either by lowering the tap position or lengthening the fuel line - currently there isn't room to lengthen it). This would also provide some storage area underneath. What I can't quite figure out is the best way to raise it, especially if I want some (preferrably dry) storage space underneath the cell.
I had a look at Warchild's photos and it gives me some ideas, but I was wondering if anyone has more detailed photos/pictures of mounting plates/brackets that leaves the cell a bit higher?
(*) Re: air lock. I was doing a long ride and after a couple of fill-ups the aux. cell stopped draining properly into the main tank. At my destination an engineering friend, who's mechanical/troubleshooting abilities are way beyond mine had a look at the setup and came to the conclusion that an air lock had formed due to the routing of the fuel line (the line had shifted and went slightly upwards after leaving the tap between the cell and the main tank). We corrected that and that seems to have taken care of the issue... for a while. I recently had another case of intermittant draining and after having read this thread I am wondering if it is an air lock, although, I did not experience the problems that thread either.
