GSXR 600 Cutting out
Discussion
Hi Folks
Looking for a bit of advice on this. I have an older GSXR 600 SRAD (1998)and it's started to cut out at 7000rpm. Doesn't matter which gear it's in it just will not go any higher than 7000rpm.
Whilst it's an older bike it's in pretty good condition but it is a constant battle to keep on top of electrical connections, there always seems to be something playing up that ends up being a corroded connector or fraying cable.
What would cause the cut out at exactly the same point in the rev range?
Any help greatly appreciated as want to get this sorted over the weekend if I can.
Cheers
James
Looking for a bit of advice on this. I have an older GSXR 600 SRAD (1998)and it's started to cut out at 7000rpm. Doesn't matter which gear it's in it just will not go any higher than 7000rpm.
Whilst it's an older bike it's in pretty good condition but it is a constant battle to keep on top of electrical connections, there always seems to be something playing up that ends up being a corroded connector or fraying cable.
What would cause the cut out at exactly the same point in the rev range?
Any help greatly appreciated as want to get this sorted over the weekend if I can.
Cheers
James
Thanks for the reply. If your riding the power will cut, drop about 500 rpm then pick back up until you reach 7000 again. If you rev it out of gear it will cut out completely some of the time.
The bike didn't get used much last year and has only been back out about a month. I'm not sure if the problem has been there all month as the bike gets mostly used for commuting so if I'm being honest I rarely have the need or get the chance to go above 7000rpm so it might have had a problem for a while & I've just never rev'd it enough to make it happen. I only noticed last week when I did get to go out for a longer run. I've since made a point of giving it some revs on the way to work and it's continued to do it.
I get my petrol from various places and it's had several tanks since I noticed the problem. Doesn't make any difference with a full tank or running right on fumes.
If your thinking fuel anything in particular I should check apart from the obvious like kinked/blocked pipes, vacuum pipes etc, plugs.
The bike didn't get used much last year and has only been back out about a month. I'm not sure if the problem has been there all month as the bike gets mostly used for commuting so if I'm being honest I rarely have the need or get the chance to go above 7000rpm so it might have had a problem for a while & I've just never rev'd it enough to make it happen. I only noticed last week when I did get to go out for a longer run. I've since made a point of giving it some revs on the way to work and it's continued to do it.
I get my petrol from various places and it's had several tanks since I noticed the problem. Doesn't make any difference with a full tank or running right on fumes.
If your thinking fuel anything in particular I should check apart from the obvious like kinked/blocked pipes, vacuum pipes etc, plugs.
Ok, looking for a little more advice on this one. Cleaned the carbs and flushed out the tank whilst I had it off and it's made no difference. The carbs were actually pretty spotless no residues or crap in them. Also replaced the plugs - they looked on the lighter side when I removed them but nothing extreme.
I'm leaning back towards an electrical problem, the fact it doesn't do it all the time (but most of the time), sometimes I go out for a ride & it's perfect. Today when riding it was fine for a about 5 mins then coming down under fairly heavy braking & flicking down the gears it back fired a couple of times, I'm not talking about the nice crackle you sometimes get this was like a shotgun being fired!
It's still cutting out at the 7k rpm mark whether under hard acceleration or gentle throttle build up.
Any more thoughts before I have to give in a book it in to the garage?
I'm leaning back towards an electrical problem, the fact it doesn't do it all the time (but most of the time), sometimes I go out for a ride & it's perfect. Today when riding it was fine for a about 5 mins then coming down under fairly heavy braking & flicking down the gears it back fired a couple of times, I'm not talking about the nice crackle you sometimes get this was like a shotgun being fired!
It's still cutting out at the 7k rpm mark whether under hard acceleration or gentle throttle build up.
Any more thoughts before I have to give in a book it in to the garage?
I had a carbed 600 SRAD and it was VERY picky about fresh fuel. It was a track bike so it was laid up each winter, but when I wanted to use it again I had to drain and put fresh petrol in. NIght and day difference. It wouldn't rev out on old fuel.
You say you've cleaned the carbs, have you chucked the old fuel and put new in?
You say you've cleaned the carbs, have you chucked the old fuel and put new in?
CAPP0 said:
I had a carbed 600 SRAD and it was VERY picky about fresh fuel. It was a track bike so it was laid up each winter, but when I wanted to use it again I had to drain and put fresh petrol in. NIght and day difference. It wouldn't rev out on old fuel.
You say you've cleaned the carbs, have you chucked the old fuel and put new in?
He said he flushed the tank, so presumably (hopefully!) he didn't refill it with old petrol.You say you've cleaned the carbs, have you chucked the old fuel and put new in?
I'd go for the HT leads next.
Fleegle said:
MotorsportTom said:
A friend had a 98 gsxr 750 and he had a similar sounding problem, it wouldn't rev past around 7000.
IIRC it was coil related, it's worth doing the carbs anyway if it's been stood but you may as well check ignition leads etc whilst you're there.
Maybe this?IIRC it was coil related, it's worth doing the carbs anyway if it's been stood but you may as well check ignition leads etc whilst you're there.
Not the same bike but I had a 99 R6 that had a dodgy coil pack on one of the cylinders.. its would misfire/hold back underload at mid revs and v high revs.
I only traced the fault with the help of the garage I use to service my bikes. They found me a second hand one and bingo problem sorted.
sjtscott said:
Fleegle said:
MotorsportTom said:
A friend had a 98 gsxr 750 and he had a similar sounding problem, it wouldn't rev past around 7000.
IIRC it was coil related, it's worth doing the carbs anyway if it's been stood but you may as well check ignition leads etc whilst you're there.
Maybe this?IIRC it was coil related, it's worth doing the carbs anyway if it's been stood but you may as well check ignition leads etc whilst you're there.
Not the same bike but I had a 99 R6 that had a dodgy coil pack on one of the cylinders.. its would misfire/hold back underload at mid revs and v high revs.
I only traced the fault with the help of the garage I use to service my bikes. They found me a second hand one and bingo problem sorted.
Hi folks, just to confirm I did replace the fuel with completely fresh stuff after cleaning out everything and the bikes had a couple of fill ups since then.
I've only been able to visually check the ht leads and coils and there's nothing obvious with those but I need to read up on how to test the. Is there an easy way to test the coils other than replacing? I'm not one for just replacing parts until I find out what's wrong as that gets expensive very quickly!
I'm assuming (see if you follow my logic) that if there was a problem with a ht lead it would be damaged or corrosion based and would result in the problem occurring intermittently at various points in the rev range rather at the same point all the time?
I've been trying to identify more of the conditions that it occurs under and it seems that it's more prone once the bike has been warmed up. By warmed up I mean after about 10/15 mins riding rather than when the temp gauge reaches normal operating temp which only takes a couple of minutes.
Tank back off for more investigation this weekend!
I've only been able to visually check the ht leads and coils and there's nothing obvious with those but I need to read up on how to test the. Is there an easy way to test the coils other than replacing? I'm not one for just replacing parts until I find out what's wrong as that gets expensive very quickly!
I'm assuming (see if you follow my logic) that if there was a problem with a ht lead it would be damaged or corrosion based and would result in the problem occurring intermittently at various points in the rev range rather at the same point all the time?
I've been trying to identify more of the conditions that it occurs under and it seems that it's more prone once the bike has been warmed up. By warmed up I mean after about 10/15 mins riding rather than when the temp gauge reaches normal operating temp which only takes a couple of minutes.
Tank back off for more investigation this weekend!
Sounds like coils to me, they are warming up and then internally the insulation is breaking down. Happens with age and hence why the fault is intermittent. See if you can get a breakers coil pack + HT leads to swap out. If it fixes it, would be worth buying a new one and new HT leads too, they have a hard life and good leads = good spark.
Gassing Station | Biker Banter | Top of Page | What's New | My Stuff