Tilt up gas tank to replace air filter

JanS

JanS

Joined
Jul 14, 2022
Messages
13
Location
Lower Burrell, Pa.
Bike
2007 ST1300
What a mess today on this 2007 ST1300 I just got with 8K on it. Tip up the tank as per instructions and that molded L fuel hose splits in 1/2 dumping the tank onto the garage floor and down the drain. Glad there was only a couple of gallons in it. Was going to drain anyway and fill with fresh gas and a can of Seafoam. Guess heat and age dry rotted it. Last inspection on this bike 7/09. Ordered today hopefully I'll have it Wednesday.
 
I think it's stupid the way they did it, they could have just used the top tank. I don't know how much the bottom tank holds but I'm sure the top tank as plenty of fuel.
 
And I just changed my air filter on my new to me 2005 2 weeks ago.
I should of checked that hose. I waited till I was down to one bar to lift the tank.
Don't wanna pull up the tank for the next while.
Some say to replace the 2 hose clamps also.
It may mention new clamps in the shop manual too.
Never replaced one, so I can't comment on the new clamps.
I have a new hose and 2 new clamps in my parts drawer.
 
I think after 16 years it was ready for a change regardless. Brake lines are flushed. Oil and filter next and coolant flush and fill. Couple of pictures
 

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Did you slide the tank backward per the Service Manual's instructions? That relieves strain on the hose and might let you raise the tank w/o a rupture. However, your bike is 15-16 years old, so the hose was probably due to be changed anyway. The OEM hose clamps come with a clip on them opening the clamp. You slide it on the hose, and the hose on the spigot then pull the clamp off with pliers. Since the spring is very powerful, be careful if you decide to reuse the old one.

Since the bike is new to you, this might be of some interest:

Article - Maintenance Items Needed for a New (old) Bike | Articles

This article is the result of collaboration by Andrew Shadow, CYYJ, jfheath, Max Pete, SMSW, and SupraSabre. Igofar’s list was copied from the first link listed above. Click on the attached file. This one is V.11; in the future, any changes will be noted in the title on the first page as the...
www.st-owners.com www.st-owners.com
Flash 2002 said:
I don't know how much the bottom tank holds.
Click to expand...
IIRC, its in the two to three gallon range.
 
The hose gets flexed/crimped every time the tank gets lifted and weakens that hose. Why they would put an air filter under the tank?
Changing the hose is good preventative maintenance or reactive :) the clamps can be re used after inspection at least IMO.
 
The Bottom tank holds 8.2 L per the manual. Approx. 2.17 gallons. However, this capacity should not assume that the lower tank can actually hold 2.17 gallons. Some of this capacity is used up by the fuel pump/fuel reserve sensor. Therefore the actual fuel capacity in the lower tank is 8.2L minus the volume occupied by the fuel pump/fuel reserve sensor. If someone has the fuel pump/fuel reserve sensor mechanism lying around. They can weigh it and get an idea of how much volume of water it would displace.
 
etalors said:
The Bottom tank holds 8.2 L per the manual. Approx. 2.17 gallons. However, this capacity should not assume that the lower tank can actually hold 2.17 gallons. Some of this capacity is used up by the fuel pump/fuel reserve sensor. Therefore the actual fuel capacity in the lower tank is 8.2L minus the volume occupied by the fuel pump/fuel reserve sensor. If someone has the fuel pump/fuel reserve sensor mechanism lying around. They can weigh it and get an idea of how much volume of water it would displace.
Click to expand...
I think Honda states the volume in the lower tank with the pump assembly installed. The SM has 2-3 pages devoted to the system details. Overlooking the actual useable amount contained in the system would be a gross error.
 
My bike computer states that when the thermistor alarms me, I have 80 Km's left of fuel.
I know this is false information and I'm getting 16-17 per litre city driving.
390 Km's and my tanks take 24 litres.
Now back to bleeding my brakes, on step TILT the SMC.
Gotta finish tonight as the red pony express has to escort me to work in the morning
 
That is why I pull the complete tank off the bike anytime I need to do any service under the tank, I have never had a fuel hose go bad that way.
 
Agreed,,, get good at taking the tank off. It is much easier,, especially if you have bar risers. Also allows a better work access to everything under the tank. Cheers,,, CAt'

970mike said:
That is why I pull the complete tank off the bike anytime I need to do any service under the tank, I have never had a fuel hose go bad that way.
Click to expand...
 
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