Hot stall, Rev lag
Posted: Wed Oct 07, 2020 3:47 pm
Hi guys.
Working on a friends bike, it’s had an issue with hot starting/cutting out.
1989 H1
Micron exhaust
I’ve adjusted all his valve clearances to spec, new plugs, his carbs had been previously cleaned but I’ve no proof of that mind you.
Fuel pumps working, carbs are at 2.5 turns out.
Took it out for a spin today, got it up to temp and it was riding great but wasn’t really down low in the Rev range apart from a few lights.
Get it back home and it cuts out, wouldn’t start again without choke. Checked I had fuel tried reserve etc.
Now when it’s running and blipping the throttle it will do nothing and then rev after it’s released, almost like a delay. Once it’s kind of picked up it will be responsive.
I’ve attached a video if anyone’s got any ideas, thinking maybe the cruddy pilot circuit or possible vacuum leak, float levels?...
https://youtu.be/9twp5VCsdZc
Working on a friends bike, it’s had an issue with hot starting/cutting out.
1989 H1
Micron exhaust
I’ve adjusted all his valve clearances to spec, new plugs, his carbs had been previously cleaned but I’ve no proof of that mind you.
Fuel pumps working, carbs are at 2.5 turns out.
Took it out for a spin today, got it up to temp and it was riding great but wasn’t really down low in the Rev range apart from a few lights.
Get it back home and it cuts out, wouldn’t start again without choke. Checked I had fuel tried reserve etc.
Now when it’s running and blipping the throttle it will do nothing and then rev after it’s released, almost like a delay. Once it’s kind of picked up it will be responsive.
I’ve attached a video if anyone’s got any ideas, thinking maybe the cruddy pilot circuit or possible vacuum leak, float levels?...
https://youtu.be/9twp5VCsdZc