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mix_of_gix

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Discussion starter · #1 ·
Hi guys,

Now have the GSX-R on the road again, it's providing me with a niggling little problem though. Tried the search function but couldn't find anything similar.

When riding reasonably hard, the bike will cut out momentarily - literally half a second to a second. It's intermittent too, it did it once last week, and twice this afternoon.

Tends to happen at higher revs generally, it's done it a few times since it's been back on the road. Ridiing conditions both times were warm-ish, about 15 degrees centigrade. The bike was at normal running temperatures all times this happened (60-70 degrees centigrade)

Asides from that, the bike runs as normal, idles fine, pulls strongly all the way to the top of the power in all gears.

The problem would seem to be electrical to me (due to the short nature of the problem). In the time it happens, I haven't been able to look down at the tacho to see if it is showing any error codes.

At start up all occurs as normal. No warning codes, and the fuel pump primes as normal.

The bike had one problem once, but this was a problem with re-starting the bike - was traced to a dodgy connection in the connector near the radiator.

When putting the bike back on the road (last week), all the connections near the radiator were checked and the connection to the clocks as I refitted them, and WD40 was applied as a precautionary measure, so I don't think the problem could lay here.

I'm thinking it's going to be some cut out circuit of some form, or another dodgy connection somewhere.... Are there any on 98 GSX-R's that are prone to this sort of trouble? Sidestand cut out? Airbox sensors? Switchgear connectors? ECU block connector?

I'm going to check them all asap and give them all a clean and lube, but was wondering if there are any common ones I should have a hunt for first.

Alternatively, if this sounds like a common issue, and I have got the wrong diagnosis (it can happen even to mechanical engineers!), please show me the light!

Not that I think it could be causing the problem, but for all of your information regardless the bike is fitted with a Full Akrapovic system, and a K&N filter.

Cheers in advance,

Dan.
 
it is either the k-stand switch or the tip sensor. the tip sensor has been know to rock enough under hard conditions to cut it out. I can gaurentee it is probably one of those two. probably the k-stand switch most likey needs to be adjusted.
 
Discussion starter · #3 ·
Where about's would I find the tip-over sensor? I'm guessing under the seat somewhere? Is it the actual sensor moving about that causes the problem, or are we looking at loose contacts?

If it's the actual sensor moving about is it simply a case of securing it to the bike better? Or does the sensor itself fail?

Cheers for your help Jimbo. I wanna sort it asap as it does tend to spoil your confidence in the bike, last thing you want is it to cut out as you have it cranked over round a nice sweeper!

Dan.
 
mix_of_gix said:
Where about's would I find the tip-over sensor? I'm guessing under the seat somewhere? Is it the actual sensor moving about that causes the problem, or are we looking at loose contacts?

If it's the actual sensor moving about is it simply a case of securing it to the bike better? Or does the sensor itself fail?

Cheers for your help Jimbo. I wanna sort it asap as it does tend to spoil your confidence in the bike, last thing you want is it to cut out as you have it cranked over round a nice sweeper!

Dan.
it is a black square box with a two wire connector (grey plug). see the picture im attaching. what i do is strap on a wire tie on both sides of the ring so it cannot move to either end of the scale and cut the bike out. this is the way i like to do it, because its reversable if you want to put it back to operation just by cutting off the wire ties. just take off the cover by removing the four screws and popping off the cover. youll see that the ring can slide from one side to the other in relation to the bike angle. you cannot just jump the wires because it uses a resistance factor.
 

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