Petrol and engine puzzle, can you solve it!?

[Feasty]

Redex in my Yam SR125 tank is not going down well at all.
I've done just about everything else that could be causing my bike to miss/backfire:

Exhaust
Spark plug several times
Fuel filter
air filter
carb cleaned
clutch
chain
bike inspected by Yam dealer

and used Redex as a last resort. However this has made things worse... so... I want to drain my tank and fill it with clean petrol to remove as much redex as possible. But where do I put the Redex petrol - siphon it into my car? I'm obviously not just going to pour it down my drains!! Can I take it to a tip? I have 1 empty petrol can but I'm hoping to use this to fetch some more petrol from the garage to fill my bike up with! So how would you do it?

[feef]

checked the HT leads and coil?
____________________
Mudskipper wrote: feef, that is such a beautiful post that it gave me a lady tingle
Windchill calculator - London Bike parking
Blog and stuff - PlentyMoreFish dating

[finpos]

Stick it in a can and use it in diluted quantities in your car or in your bike once () it's running again.

finpos.

[Blau Zedong]

Bang it in the car!
____________________
18:54:48 Rob Fzs: jews don't give away stuff for free

18:54:59 Rob Fzs: unless its their clothes/ hair/ golden teeth

[Feasty]

[Finglonga]

The Yamaha dealer must be good that you took it too.
____________________
Andy Sez....
F.Y.Y.F.F.

[Feasty]

[finpos]

Do you know where this new fuel filter is?

finpos.

[Feasty]

[finpos]

I'd be tempted to unline that inline, see if it makes any difference to the bike running. I doubt the bike was designed to need/work with one.

More precisely, the bike will already have a gauze type filter somewhere (either in the tank or in the carb). The in-line filter will be a paper type filter, which will require a bit of pressure to flow enough fuel for the engine at higher revs. It's possible that the head provided by the fuel in your tiddly tank isn't providing quite enough pressure.

finpos.

[Feasty]

[finpos]

Impossible to say because you don't know what the garage did.

One scenario is that they replaced the old clogged in line filter with a new one. That worked well untill it got slightly clogged itself (and you componded the problem by stuffing it full of gooey redex).

Another Scenario is that they cleaned the bike's internal filters and added the inline filter, not realising that it wouldn't last long once you started using it.

Bottom line is that the inline filters don't really belong there and don't always work as well as they are expected to, so it's worth trying to run the bike without one for a short time to see if it makes a difference. Should be really easy to do if you can find a short length of solid tubing (to put in place of the filter) somewhere.

You are actually trying to eliminate the filter itself. i.e. if you remove it and it's still misfiring, it's not the filter causing the problem

finpos.

[Feasty]

[befdelta7]

[Feasty]

Ouch!! Just phoned my local shop for a price on a CDI unit - £165 new! And £50 2nd hand....

On a bike that I bought for £350 and have spent over £200 on since, I'm starting to think it would be cheaper to trade it in for a newer model. I'm so fed up with it not working now, and having no gaurantees A CDI unit would fix my problems... if the bike was running well, I would probably be able to sell it for around £400, but the amounts I'm paying out now are just getting out of hand!

I saw an almost new Honda CBR125 for £1500 today, with a trade in I'd have a working much newer bike, probably be shelling out about the same amounts every month for finance instead of repairs...

Advice please! I'm getting desperately frustrated with this...

[TheShaggyDA]

[Feasty]

Hey Guys

just been working on my bike this morning and noticed the fuel tap doesn't work! Doesn't seem to make a blind bit of difference wether it's on 'main tank', 'off' or 'reserve'. Obviously having it on 'main tank' or 'reserve' wouldn't make a difference anyway but I've had the bike running for a while with the tap in the 'off' position now, revving it etc and it just carries on running. At one point it cut out, restarted, cut out, restarted then it carried on running no prob's - and this is all with the tap on 'off'!

My question is, how did the Yam dealer fit an inline filter unless they propped the bike on its side? And why didn't they notice the tap was like this? (Of course I'll be asking them this myself!).

Also, could this be the cause of my bike popping/missing and backfiring if the fuel isn't getting through - i.e the tap not working properly?

Cheers


P.S Other thing I've noticed is a slight leak of very black water from the lip of the end of my exhaust (not the actual outlet hole), that sprays around my back wheel and on the floor - should I be worried about this?

[rickyfazer]

Valve clearances !
____________________
never wipe yer arse wi a broken bottle !

[Feasty]

[feef]

[peterfisher]

Hi There,
As soon as I saw your post I thought Valves.
Then you say you have used Redex.
The Redex removes excess Carbon deposits from the Combustion Chamber and around the Valves.
The Exhaust Valve is now leaking because there is no longer any crap to stop it from doing so.
Regards
Peter