petrol mix up , solution? ** edited* crankshaft problem

[halo123.]

Hi this is a bit of a stupid question , i mixed up the fuel i was supposed to use on my bike and ran thru a tank and a half of leaded (lrp) petrol instead of unleaded so now there is a knock.

What should i do. do you think if i just flush the tank out and replace with unleaded it will burn the excess carbonization from the leaded or do i have to over haul the head and manually clean the carbon off ( i have checked and the knocking is a possible side effect of using the wrong fuel ) (in other words will the knock go away if i just use normal unleaded petrol?)
Thanks
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Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[sickpup]

what bike is this and do you mean a knock from the engine?

Would be surprised if LRP caused it, can't see any way it would.

[halo123.]

It is the gs500 , well the carbs were not balanced or set properly, etc ,and using leaded petrol has more carbon buildup , which can theoretically cause it to knock.
I had the bike running soundly when i got it, and used it for a week on the lrp , a distance of about two to three hundred km.
I dont know anyway to disgusie a knock , to sell the bike though ,
( having bought it second hand as is , i cant really demand money back as it was running sweetly when i got it . Buying it has also made me very broke, so i would like to try fix most of it myself, as they want to charge me R1000.00 for a service, ( in south africa , and i paid R5000. for it )

But any ideas are welcome

thanks
Angus
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Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[Spoon261]

Shell V Power, BP Ultimate and Tesco 99 (these are all their quality petrol ranges, not their normal unleaded petrol) have extra cleaning chemicals in the petrol to clean your engine out.

They do cost 4 to 7p a litre more than unleaded, but are worth trying.
Shell V Power is my favourite.
They are all meant to clean carbon deposits off the engine.

They are designed to be used all the time, so are weak meaning it will take several tank fulls to totally clean out an engine.

[Spoon261]

As I was typing my response, I see you have beaten me to it and revealed your in south Africa.

Of coarse you can not get British petrol so my advice is no use.

Are you using to low an octane petrol in the bike? That causes knock doesn’t it?
Do you have higher octane petrol than standard / do motorcycle shops sell octane boaster?

[halo123.]

Do you think if i had to use the stuff ( wynns carb cleaner ) you get in a little bottle that you add to the fuel it would help

nb i am in southafrica so the vpower is the same price as unleaded
depending on which service station i go to , about 15c diff in the prces so we dont notice so much on bikes etc.

[They do cost 4 to 7p a litre more than unleaded, but are worth trying.
Shell V Power is my favourite.
They are all meant to clean carbon deposits off the engine.

They are designed to be used all the time, so are weak meaning it will take several tank fulls to totally clean out an engine.[/quote]
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Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[halo123.]

We have total , bp , and engen , gas stations here.

The only additive that i know of is like the wynns carb cleaner stuff.
so i can use the ulitmate and techron fuels and engen also has something similar to these but i can remember its name.

( in regards to where the knock is , it is as if the bike is missing on every second piston stroke on the left side, so it sounds very similar to the way the old vw beetles used to )

nb i have checked the spark plugs and they seem to be sparking correctly ( but were very dirty ) , but will be changing them for new ones , over the weekend i hope .
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Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[halo123.]

Looks like i will be stripping the head off of the bike to remove the carbon as techron etc ,
Takes quite a while and i dont want to ride the bike like it is , just in case its not carbon build up, check a few other options before i do though.


if anyone has any other ideas , thoeries please let me know.

Thanks
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Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[Jackyboy]

take the air filter off and run redex into the airbox. Really cleans any shit out of the carbs and cylinders. I used to run V-Power with redex in as well - keep the engine clean and efficient, carbon footprint down and petrol costs down...
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Insurance Beehatch Supremo- Direct any grumbles about repudiated claims my way
Yamaha SR125 - Scrapped 13/06/2006. Hyosung GT125R - Totalled 18/11/2006.
Honda VFR400R NC30 - Totalled 09/02/2007. CBR600F - currently in 1 piece...

[halo123.]

redex?
I will see if we have it here . ( is this the same stuff do you think ?
https://www.holts.co.za/products.asp , which one would i use , the petrol additive , remember i am in south africa , so i dont have a halfords .
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Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[stinkwheel]

I find it HIGHLY unlikely that a GS500 is going to detonate on LRP unless it has a REDICULOUSLY low octane rating, which it doesn't.

You ain't going to get a carbon build-up off it either, it is just normal petrol with either a sulphate or phosphate additive to lubricate the valve seats on vehicles that don't have hardened ones. The only thing it is likely to cause a problem with is a catalytic converter or possibly exhaust gas sensors, neither of which your bike will have.

I think the source of your knocking noise is something else entirely.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[cestrian]

Definately with Stinkwheel on this one. Highly unlikely to be a problem regarding fuel. This may sound crazy but sometimes we here a knock or tap when we expect it most. ie in this situation.

If you really don't want to run your bike on the LRP, just drain it from the tank, replace with regular fuel and keep riding.

[ZRX61]

[stinkwheel]

[halo123.]

Hey guys thanks for the input. So is there any way that some one could get the bike to sound healthy and then a week or two later the bike starts sounding like crap. (In other words to sell the bike make it seem okay when there is a problem with the thing)

Thanks
____________________
Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[stinkwheel]

Might also be worth actually fixing whatever the problem is instead of being a total cunt?

No more help from me.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[halo123.]

[ZRX61]

[ZRX61]

[stinkwheel]

[halo123.]

As an update to the topic , i changed the spark plugs ( they had the wrong ones in there, checked the timing chain and , set the cams with how the book says , started it and the noise is still there.
So i thought i would take it out for a spin and see is it changes in pitch or anything.
Forgot that i had no power and went and dropped the thing and broke the clutch lever
So i have come to realise that i will be doing a lot more work on it than i thought as the knocking appears to be lower down than i thought.
( i felt like a retard having to push bump start and ride home in second )
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Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[bish777]

I doubt the motor would start to die after two weeks (presuming youve not been running it with no oil in it of something similarly daft..)

If there is a load of crud in the carbs it can make the bike run pretty roughly. This can produce clanking, knocking noises in the motor on multi cylinder bikes as the cylinders will not be running evenly creating alot of lashing and clunking.

Have the carbies off, clean them out. Pay attention to the pilot jet and the small passageways in the carbie. Balance the throttle butterflys quickly using a metal rod or drill bit. Check the rubber diaphragms in the top of the carbs for splits.
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GSXR1100J

[halo123.]

I have already taken the carbs off and checked the timing ,
but to no avail. I will send it for the carbs to be balanced etc when i get some more money. but will probably do a complete overhaul in the interim.
The noise seemed to have started when i stalled it in 4th gear , cause someone never looked at the stop street and pulled halfway across.
____________________
Halo123. =Techie/geek and bike rider ,
current bikes owned ,fix me upper gs 500e missing cdi
cbr 250 virgin colours

[ZRX61]

[stinkwheel]