1984 GSXR project.

[mattsprattuk]

today i took off the rocker cover and adjusted the valves, i raised them about 1.5-2mm on the dead cylinder... and guess what? it fires!
cheers kickstart for originally suggesting valves, its taken me this long to get round to it

i might raise it another 1 or 2mm because its sometimes not firing at low RPM.
it also 'slaps' a bit if you know what i mean.
could this be because of valves?
ill do it anyway...

i also think i managed to get a shit load of water in the sump through the cam.
my oil window is now a lovely brown colour... yummy.
ill sort my valves properly, then give myself a new dose of oil for the old girl.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[.Chris.]

Valve clearances are very exact so before you start using the bike I'd get a manual and set all the clearances to the book figure (unless you know it already of course). 2mm sounds like quite a lot for a valve clearance adjustment - I know my car's tappets should be set a 12 thousandths of an inch.

I just wonder why the clearance was so bad. Not sure if this tends to be a problem with bikes but on older (generally pre-'89) cars that originally used leaded petrol, exhaust valve seat recession tends to be a problem when they are used on unleaded petrol without an additive. This recession makes the exhaust valve gap close up and eventually the valve burns out. However I think this problem is worst on iron cylinder heads - not sure what this one would be made out of.

[mattsprattuk]

heres a video of the knocking, anyone know what to make of it?

https://www.youtube.com/v/JinH0XtN0mw


broken ignition, so the fuse is my key


also...
ive just got a new set of clocks on warranty for the lifan, and they had a fuel guage and a gear position indicator, i was looking at putting the gear indicator and the fuel guage on the gix, much chance of this working? surely as there is a neutral light on the gix that the gear position indicator would fit?
i doubt the fuel guage would though... probably not a sensor in the tank.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[.Chris.]

Is it a diesel by any chance?

From the sound on that video I'd say the higher-pitched 'clackety' noise could be the valve gaps but I'm not sure what the deeper, less frequent knocking sound is. Could be big end(s), but then again I may be wrong.

Does the bike have an oil pressure gague or anywhere a sensor could be fitted? E.g. does it have an oil pressure light with an electronic sender screwed into the engine?

Low oil pressure will tell you that the crank is worn, which would confirm that the big end(s) are buggered. (Note this is from my knowledge of car engines which have a slightly different crank design to that of bike engines, but I'd have thought the principle is the same.)

My first port of call would be to check/adjust all the valve gaps to the book figure and then see if the knocking is still there. Basically you need to eliminate one potential source of trouble at a time.
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Chris
1985 Kawasaki Z550F

[mattsprattuk]

well, if the engine is running and i look around the downpipes, theres a cobweb in there thats being blown around.
does it sound at all like a blowing manifold/hole in exhaut?
i cant really inspect it as its under the radiator and i dont have any gaskets if i do take it off.
maybe a gasket?
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[.Chris.]

Could be! You could always make some gaskets out of cerial boxes (though I don't know how long they would last being subjected to high temperatures).

You could always remove the radiator to gain access as I doubt running the engine for a few seconds with no coolant would do it any harm.
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Chris
1985 Kawasaki Z550F

[mattsprattuk]

actually yeah, i think ill take the radiator off as when i took off the tube from the radiator to take off the rocker cover, the water that came out was rusty and brown, i think i need to sort something out with that.

whats the best way to get water out of the innards of the engine without just running it and revving it so it pumps out?
cheers queers, xxx
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[mattsprattuk]

update:
bit of wheelie practice, was fun, make videos some time... i can only do them in first though for about 30 meters.

it revs up fine in neutral without any load, and i can get to redline with it, but if i try and do it with the engine under load it sort of struggles at anything above 9000rpm, any ideas why?

other than that... I FUCKING LOVE IT!!!

and ill be riding it on the 20th of august legally
cant wait, just hope i pass.

top speed at the moment is about 110kph :S
thats with the 9k rev problem.
its got no sign of carb restriction, but my exhaust does keep coming off. could it be an exhaust flow problem? as im in the market for new downpipes and collector box for it.

cheers queers xxx

EDIT:
my indimacators also dont work above 3000rpm???
reg/rectifier problem?
oh well, they dont check it when the engines running for the MOT so im safe
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[Jenks]

Matt, check the CDI too!
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1978 MZ TS 250 1 Supa 5
1992 yamaha fzr1000 exup
1998 aprilia af1 sintesi

[mattsprattuk]

[Fawbish]

Hey, enjoyed this thread mattsprattuk,

Any updates? Did you pass? Get everything working on the gixxer?


I dunno how you can say you dont have much knowledge! :p
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"Oh....it looks like Average Joe's is forfeiting the match!" - "Yeah, its a risky strategy but lets see if it pays off for 'em Cotton."

[mattsprattuk]

oh yeah, i kind of forgot about the thread

passed my test on the 20th, then spent about 2 weeks perfecting it to get it through an MOT...
failed first time because of cracked tires, broken brake lever and radiator touching forks when on full lock...
sorted it all, passed MOT, happily riding along leaking oil and overheating all the way, but i didnt give a shit
my rev problem seemed to dissapear after the MOT, so i stretched its legs a bit...
3 weeks down the line the rev problem is back with a vengance.

i thought it was sparks, but clearly not as theyre all a nice golden brown.
so now it doesnt start.
a sort of end to the story:

'im road legal, taxed, MOT'd and insured... yet the bike killed itsself- engine rebuild or new engine pending

[Fawbish]

[mattsprattuk]

[Fawbish]

Im 18 too, but never done a project, am hopefully doing one soon though (october payday, pleaaaase hurry up)

I spent my hard earned money on a zx6r, and the almighty arse fuck that is the insurance

But good stuff bout the superdreams, they just seem pleasing on the eye!
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"Oh....it looks like Average Joe's is forfeiting the match!" - "Yeah, its a risky strategy but lets see if it pays off for 'em Cotton."