The hot weather kicked in again and brought back something to my memory that has happened multiple times last summer. When pulling off from a complete stop and fiddling with the clutch and throttle, the bike dies with a loud screech that doesn't sound good. I don't know if it's weather related, but I don't seem to recall hearing the screech when the bike dies during cold weather. Here's a vid: View: https://youtu.be/vu5Fd4ac1lE Is this anything to worry about? EXTRA: Now this does not relate at all to the issue above, but has had me curious. Sometimes when trying to hit the throttle at any speeds to accelerate, a weird sound comes from the gas cap area, making the throttle twist unresponsive for that single twist and then everything else is all right. I can't find a word to describe that sound, but it kind of sounds like a human hiccup.
The 'dies with a screech' sometimes happens to me when my bike stumbles or stalls and on mine it is the engine kicking backwards against the starter motor bendix arrangement - not good, sounds horrible and possibly very damaging but so far I haven't suffered anything more. The hiccup sounds like it is also related to the lean stumble and is a half hearted backfire which you hear through the airbox (gas cap area). The simultaneous lack of engine response is also associated with the lean stumble.
Quick response, didn't get to upload the vid in time So is there anyway of avoiding it? Thank you for your input!
Ok having now seen the vid it is definitely as I described, the engine kicking back against the starter motor gear. If it is any consolation, your video screech is not has as bad as some of the crashing bangs and screams I have had come from my engine when it happened. Quite often after one of those stalls, I have gingerly pressed the starter expecting it all to go totally bang and mash everything up, but so far it hasn't. As for the cure...how long is a piece of string? There are literally 1000s of posts on various remedies and some have a lot more success than others. I am currently experimenting with yet another piece of electronics to see if I can eradicate the lean stumble issue totally.