Q Why is my Triumph so hard to start?
I own a 2004 Triumph Daytona 955i with under 6500 miles on its clocks. The problem is that it’s hard to start. Sometimes it will fire-up after five or six attempts, other times it will not start at all. Once it’s started it will run fine and restart OK when the engine is hot. I took it to a local dealer who fitted a new fuel level sender and regulator/rectifier – the second one in two years. Dave Hailstone, email
A Answered by Adrian Clancy, Total Triumph You need to completely drain your tank and dump the fuel, (the ethanol content in unleaded is causing big problems on older bikes with low mileage) replace the fuel filter inside the tank, add about five litres of fresh fuel and fit a new set of spark plugs. Check the air filter while the bike is stripped down. Make sure the battery is fully charged and the air temperature and coolant temperature sensor connectors haven’t got mixed up and plugged in the wrong way around... it happens!
Also, the air temperature sensor and coolant temperature sensor should give the same ambient temperature reading on a bike that’s not been run for several hours. That can only be viewed on the Triumph diagnostic tool.
After it’s running you need to check the AC voltage output from the stator, it should be approximately 16 volts AC at idle and about 90 volts AC at 5000rpm. There should be no circuit between each phase of the stator and earth. There’s a very small chance the idle control stepper motor may have seized. This too can be checked on the diagnostic tool.
Ethanol content in unleaded can play havoc with bikes