Q: Hi there, I’m in need of some professional assistance, obviously?
My K3 Gixer (GSX-R) will not rev past 9000 rpm under load on some cold days. This is an intermittent problem, which confuses me. The bike has done 73,000 km and it’s been well taken care of.
The timing chain and tensioner were replaced around 60,000 km. The spark plugs are iridium and there’s no back firing. The oil is a synthetic 10W40 and clean, as are the oil and air filters. It has an Akrapovic full system and the exhaust valve is set to be always open (disconnected).
It starts easily and revs to redline through the gears (most of the time), when it doesn't there is no sputtering or anything that would indicate ignition issues. It just revs cleanly until 9000 rpm and then seems to starve for fuel but there are no kinked pipes and the fuel filters are clean. The petrol tank was refurbished around 25,000km because the bike stood for a long time and there is no visible contamination. Have you guys experienced this before and, if so what can you advise me to do?
Thanks.
Steve.
A: We would suggest that this problem, because we’ve had it before, is the fuel pump accumulator, which is probably partially blocked or full of various contaminants. Or maybe a new one is needed due to the mileage, hopefully not?
But first, the entire fuel pump can actually be taken apart by a very competent mechanic, but please be extra careful not to damage the intricate parts whilst taken apart or rebuilding!
You can buy a complete new pump but you’ll probably be horrified at the price, hence the advise to strip and clean it first. Ask the price from a Suzuki dealer and I’d imagine that part would possibly be around 7-8k!
Q: Hi there, I’m in need of some professional assistance, obviously?
