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Tank Removal

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Scatcat1994
Squiddy
Squiddy

Posts : 13

Tank Removal

Post by Scatcat1994 on Thu 20 Oct 2016, 3:19 pm

Lads, really sorry for the double posting here but I'm totally stuck.

I'm trying to remove my tank on my cb500s to access my carbs,

I have removed the seat, tank bolt, fuel hose, air breather on the left hand side and the drain and breather hose on the right hand side.  

It is refusing to budge.

There seems to be a 3rd hose on the right hand side that might be the issue but it isn't adressed in either the haynes manual or any other source I can see.

Any ideas or should I just pull it as hard as I can?

Cheers guys,

-Scott
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eternally_troubled
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Location : 'ere be fens. (near Cambridge)

Re: Tank Removal

Post by eternally_troubled on Thu 20 Oct 2016, 3:40 pm

I don't know about the CB500S, but on my naked one you need to remove the plastic side panels before removing the tank, so I would suggest that.

As I said in my other post, have a read of the Haynes manual - I'm pretty sure it covers this.

In addition to this the rear tank bolt goes through a rubber bushing - if the tank hasn't been removed for a while this can get a bit stuck - it is worth a little spray of WD40 or GT85 onto this to see if it helps.

Also - are you trying to get it to start (as per your other post)?  Personally I wouldn't go messing with the carbs until you've ruled out other problems like the battery being flat, grot on the plugs etc...
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Scatcat1994
Squiddy
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Posts : 13

Re: Tank Removal

Post by Scatcat1994 on Thu 20 Oct 2016, 3:57 pm

Just trying to get access to the plugs sorry, accidently said carbs haha.

Aye the bolt isnt the problem, the back of the tank has its back end in the air but the front end absolutely will not move. It was held to the fairings by 2 bolts but I have them removed.

Honestly beginning to get really infuriated, spent 5 hours trying to do a 1 hour job
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ZekeVal
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Location : Auxerre, France.

Re: Tank Removal

Post by ZekeVal on Thu 20 Oct 2016, 4:06 pm

I've done this to my cb500s a few days ago for the first time. As mentionned in the Haynes manual, don't forget to remove the 2 bolts holding it to the
 fairing, and then you should just lift the back and slide the tank backward to get it off the notch in the front.
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Scatcat1994
Squiddy
Squiddy

Posts : 13

Re: Tank Removal

Post by Scatcat1994 on Thu 20 Oct 2016, 4:17 pm

Turns out the tank was held to the fairing by 2 gromets.

Fortunately they have now snapped off and my tank can be removed.

Didn't see anywhere even mention the gromets haha

As well it's off now
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Scatcat1994
Squiddy
Squiddy

Posts : 13

Re: Tank Removal

Post by Scatcat1994 on Thu 20 Oct 2016, 4:53 pm

Ok so I managed to get the spark plugs out,

They are black/covered in a dark liquid.

Is this a flooded engine or possibly another issue?

Would a picture help identify certain issues?

Cheers,

-Scott

sullivj
the 900
the 900

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Location : Gatwick

Re: Tank Removal

Post by sullivj on Thu 20 Oct 2016, 5:42 pm

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Scatcat1994
Squiddy
Squiddy

Posts : 13

Re: Tank Removal

Post by Scatcat1994 on Thu 20 Oct 2016, 6:07 pm

Thanks for that, looks most like carbon deposits in my opinion.

My assessment is that I flooded the engine trying to start it for too long, most likely caused by a weak battery as I left it sitting for 2 months.

I've taken out the plugs and ran it along in gear to try and clear the cylinders out, gonna let the rest evaporate off overnight.

I'll give the plugs a clean in the meantime but will order some new ones.

I'll jump start the battery tomorrow using my other bike and see if we have any luck tomorrow, cheers for the help guys.

-Scott

sullivj
the 900
the 900

Posts : 2121
Location : Gatwick

Re: Tank Removal

Post by sullivj on Thu 20 Oct 2016, 9:02 pm

It may be worth just buying a new battery. They're not that expensive for the peace of mind they bring.
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eternally_troubled
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Re: Tank Removal

Post by eternally_troubled on Wed 26 Oct 2016, 9:00 am

Did you manage to get it to start in the end?

Was the tank actually stuck on the fairing - it also locates over two rubber-covered frame lugs and they can get sticky over time, usually a good heave will pull it off.

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