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Bikes, Hints'n'Tips => FZS600 Fazer => Topic started by: Torque on 02 October 2013, 11:19:42 pm

Title: Tank screw screwed - how to fix?
Post by: Torque on 02 October 2013, 11:19:42 pm: Hi,
I've got '99 FZS600 and seems to be that previous owner had to much strength when tightening the tank mount screw (this one in the center of tank mount).

After few bumps it's not working properly and my tank is loose again.

Any ideas how to fix that without drill & tap to 7-8mm?
Title: Re: Tank screw screwed - how to fix?
Post by: mickvp on 02 October 2013, 11:23:09 pm: Drill and tap a bigger size, failing that if it's a through hole (I'm not sure without looking) you could put a longer bolt through and get a new nut on the back?
Title: Re: Tank screw screwed - how to fix?
Post by: Torque on 02 October 2013, 11:30:40 pm: Quote from: mickvp on 02 October 2013, 11:23:09 pm
Drill and tap a bigger size, failing that if it's a through hole (I'm not sure without looking) you could put a longer bolt through and get a new nut on the back?

Oh right, that makes sense. Just longer bolt.
I will check if there is entrance from the other side for longer bolt. Yeah but now it's too dark ;)
See you tommorow.
Title: Re: Tank screw screwed - how to fix?
Post by: dBfazer600 on 03 October 2013, 01:46:10 am: I had same problem and bought the same bolt and put it in. It simply re-threaded it self but I am careful just to nip it up. Problem was bolt cost 0.82p and shipping near on a £5 :eek

This is where I got it from

http://www.yamahascooterspares.co.uk/product/yamaha/901190621300/bolt,%20with%20washer%284bp%29?uid=0 (http://www.yamahascooterspares.co.uk/product/yamaha/901190621300/bolt,%20with%20washer%284bp%29?uid=0)

Or do as Mick says but i would drop a size if your going to use a nut, washer and bold so it just slips into the hole.

Daz
Title: Re: Tank screw screwed - how to fix?
Post by: Deefer666 on 03 October 2013, 05:54:26 am: This is quite common on the front tank mounting bolt. I normally drill the hole out to a larger size then paint around the edge of the hole with clear nail varnish (to stop rust on the now exposed metal edge) then fit an M6 rubber well nut into the hole. Works everytime :)
Title: Re: Tank screw screwed - how to fix?
Post by: red98 on 03 October 2013, 06:43:08 am: i`ll be surprised if you can get to the other side to hold the nut..........bore out and re-tap ;)
Title: Re: Tank screw screwed - how to fix?
Post by: Dead Eye on 03 October 2013, 10:21:33 am: Pretty sure it doesn't go all the way through, but there is a lot of empty space - I lost my original bolt so used one I had lying around which was probably a good 2" long. Worked fine and now I've found the original bolt again... :rolleyes
Title: Re: Tank screw screwed - how to fix?
Post by: Torque on 03 October 2013, 07:58:36 pm: Quote from: red98 on 03 October 2013, 06:43:08 am
i`ll be surprised if you can get to the other side to hold the nut..........bore out and re-tap ;)
Yeah, because it goes into the frame ;)

There is no way to get it from the other side.
Yeah I think I need to buy a drill and tap...
Thanks
Title: Re: Tank screw screwed - how to fix?
Post by: noggythenog on 03 October 2013, 08:18:09 pm: Quote from: Torque on 03 October 2013, 07:58:36 pm
Quote from: red98 on 03 October 2013, 06:43:08 am
i`ll be surprised if you can get to the other side to hold the nut..........bore out and re-tap ;)
Yeah, because it goes into the frame ;)

There is no way to get it from the other side.
Yeah I think I need to buy a drill and tap...
Thanks

I just bought another screw.....it seems the screw, not the frame is the weak point....if it was focced after a fall then maybe a new screw is all that is needed....i just popped into a place in Swansea, showed them the old one & got a matching non yamaha screw & now it's fine.
Title: Re: Tank screw screwed - how to fix?
Post by: darrsi on 03 October 2013, 09:07:35 pm: I've got a large thread self tapping screw in mine, works a treat.
Title: Re: Tank screw screwed - how to fix?
Post by: Torque on 14 October 2013, 01:18:44 pm: I am just about to buy a drill, but I am wondering if cordless drill would be fine for drilling in metal?

Basically I don't need electric drill and I think that cordless drill it's better choice for future purposes.
What do you think?
Title: Re: Tank screw screwed - how to fix?
Post by: JoeRock on 14 October 2013, 02:09:00 pm: Check the screw itself before you go drilling the frame!

The frames iron, the screw aly, its much more likely that the threads on the screw are buggered with the frame itself fine!

Just get a stainless bolt of the right size, dollop of copper grease and it'll likely screw in and stay where it should! (assuming the frame threads ARE fine)
Title: Re: Tank screw screwed - how to fix?
Post by: His Dudeness on 14 October 2013, 05:02:44 pm: If the bolt isn't damaged and the frame is try running the current size tap through the hole before you go up one size and see if you can clean up the threads
Title: Re: Tank screw screwed - how to fix?
Post by: BorisTheThird on 14 October 2013, 09:06:07 pm: The thread on mine stripped, went to a mechanic (for some other stuff) and he put a helicoil in. (drilled out, tapped slighty, then threaded down to m6 again
Title: Re: Tank screw screwed - how to fix?
Post by: YamFazMan on 15 October 2013, 12:12:07 am: Hi
I re-threaded the stripped M6 hole to 1/4 BSF no drilling straight in with a No1 1/4 BSF taper tap, the 1/4 BSF bolt fits through the hole in the tank as well.
ATB YFM
Title: Re: Tank screw screwed - how to fix?
Post by: wannafazer on 15 October 2013, 12:22:30 am: The bolt on the rear footpeg is the same, you can use that. at least it will eliminate whether it's the screw at fault.