Edited version
Hi
There is one thing I do not understand with Hayabusa especially Gen 1 & it's the start problems that so many describe. Most often, it is difficult to start when you have driven a few mil left it half an hour and then try to start it. But even cold-start problems occur.
Standard answer these wretches get is that to test the battery and replace it if it´s bad - which works sometimes, but all too rarely.
Another advice is that the start motor is too hot and needs to cool, it has swelled in the heat and therefore goes sluggish; but what can expand into the starter and get it to jam, it's the needle bearing in the front or rod in the ring in the back?
The bar in the starter motor runs freely without any friction in the rotational direction except those I have already mentioned: it has a even a specific room for movement in the longitudinal direction and should therefore meet a certain thermal expansion without getting stuck. But what strikes me is the amount of Hayabusa with starting problems. I have recently seen even Gen 2 Busa with the same problem.
I have problems starting the bike with a warm or cold engine, that crank slow and drains the battery on only 3-4 start attempts. The problem comes at 75% of start attempts, but in 25% of the attemmts it start up immediately with good spin on the starter.
I changed the starter relay, regulator / refrictor, batteries: YuasaYTZ14S with 230 CCA (starting current) & Shido Lithium Ion with 300 CCA, starter clutch and even tried a 24-volt systems,which admittedly started the bike 9 times out of 10., but when the starter motor started to go slow & chewy, & the 24 volts hit the starter so hard that the teeth from the starter through the idle gear to the starter the clutch and to the drive shaft into the motor, I thought everything would collapse and teeth flying. Without achieving any improvement.
Question - what is it that is under dimensioned and substandard on this bike for the starting problem.
That there is a construction of budget parts - I know, but why does not Suzuki with the problem & do something radical like to change the battery, starter ody. ? or is there any professional service mechanic or someone else who knows the cause and solution to this problem. We who are afflicted and spend big money on buying one after the expensive parts. My suzuki workshop are the ones who changed all the parts I changed for good money and without that problem is solved.
Or do I have to abandon the Hayabusa, which over the years I've learned to love and buy a bike with higher quality & reliability.
My desire is an explanation of the problem and a solution to it. As it is, do not even suzuki mechanics reason for the error, but gives different answer every time.