Hi guys...
LATEST UPDATE :
The focus is getting this bike running for one - then running right.
I wondered if you guys could take a look at a few vids to see if there's anything you can pick out to help point me in the right direction, which I'll try explain below:
Vids Link is dropbox : https://www.dropbox.com/sh/udhujtob1...SDXRWZSqa?dl=0
They're listed in order and with a description!
The Situ...
I was having issues getting the bike to really run at all before, so hit the internet and decided to up my Secondary Main Jet to 80 (from 72 - now running 80/118) and shimmed my Jet Needles with x2 Keihin Shim Washers. FYI - F/A Mixture Screws are 3 turns out.
Gave the bike a turn over today and SHIT, the thing fired up almost right away with Choke and sat idling pretty nicely.
From there, I gave it a few revs to check that side and first time round, which also sounded on the money.
This seemed to be all good for a minute or so, but right at the end of the vid you'll hear that when I stop throttling for revs the bike just drops off on idle and it cut itself out. [Video 1 & Video 2]
So I figured no biggie - maybe just needed to warm up right and really, the bike has barely been running for more than a few minutes in nearly a year...
Tried starting it up again (Choke on) and giving it a rev...
This is where I'm stuck -
It seemed to hold on to the revs pretty highly for a prolonged period after revving (definitely not the throttle sticking), and then dropped back down. When it drops down it sounds fairly patchy and then goes weak - and this happens over and over for a few rounds of revving up and letting it drop back to idle. [Video 3 & Video 4]
It eventually cut itself out again when it dropped down, so gave it another few tries and some seemed almost perfect and some with this really weird revving (and sometimes abnormally high as if it was almost WOT). This wasn't always just from throttle, sometimes on start it would just whip high and for fear it wouldn't stop itself I'd cut Choke or just turn it off and try again. [Video 5]
FYI - I also gave it a try altering the Choke level a few times whilst running to see if that helped after a few minutes - but it wasn't really distinguishable any particular way to make a positive difference.
For next steps :
I have a Carb Sync tester tool which I need to run and Im aware playing around with Fuel mix or adding / reducing on those Shims could alter my current results - but as before, would be great if anyone can offer up any immediate guidance based on the current sounds...
Hope you guys can help - it's nearly bike riding weather, even in Scotland!
Thanks a mill.
BP
LATEST UPDATE :
The focus is getting this bike running for one - then running right.
I wondered if you guys could take a look at a few vids to see if there's anything you can pick out to help point me in the right direction, which I'll try explain below:
Vids Link is dropbox : https://www.dropbox.com/sh/udhujtob1...SDXRWZSqa?dl=0
They're listed in order and with a description!
The Situ...
I was having issues getting the bike to really run at all before, so hit the internet and decided to up my Secondary Main Jet to 80 (from 72 - now running 80/118) and shimmed my Jet Needles with x2 Keihin Shim Washers. FYI - F/A Mixture Screws are 3 turns out.
Gave the bike a turn over today and SHIT, the thing fired up almost right away with Choke and sat idling pretty nicely.
From there, I gave it a few revs to check that side and first time round, which also sounded on the money.
This seemed to be all good for a minute or so, but right at the end of the vid you'll hear that when I stop throttling for revs the bike just drops off on idle and it cut itself out. [Video 1 & Video 2]
So I figured no biggie - maybe just needed to warm up right and really, the bike has barely been running for more than a few minutes in nearly a year...
Tried starting it up again (Choke on) and giving it a rev...
This is where I'm stuck -
It seemed to hold on to the revs pretty highly for a prolonged period after revving (definitely not the throttle sticking), and then dropped back down. When it drops down it sounds fairly patchy and then goes weak - and this happens over and over for a few rounds of revving up and letting it drop back to idle. [Video 3 & Video 4]
It eventually cut itself out again when it dropped down, so gave it another few tries and some seemed almost perfect and some with this really weird revving (and sometimes abnormally high as if it was almost WOT). This wasn't always just from throttle, sometimes on start it would just whip high and for fear it wouldn't stop itself I'd cut Choke or just turn it off and try again. [Video 5]
FYI - I also gave it a try altering the Choke level a few times whilst running to see if that helped after a few minutes - but it wasn't really distinguishable any particular way to make a positive difference.
For next steps :
I have a Carb Sync tester tool which I need to run and Im aware playing around with Fuel mix or adding / reducing on those Shims could alter my current results - but as before, would be great if anyone can offer up any immediate guidance based on the current sounds...
Hope you guys can help - it's nearly bike riding weather, even in Scotland!
Thanks a mill.
BP
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