As with any Amal, at the first hint of trouble clear the pilot. Hot glueing the drill bit or apiece of appropriate guitar string into the end of one of those red straws from carb cleaner and such , makes for a fine pilot clearing tool. Don't leave home without one . Great video series . Liked and subbed. Cheers
The sheer patience involved should get you an Amalaholics Anonymous Gold Badge. I ran out with mine so will spend the rest of my ownership hiding from purists!
back to basics Chris........the bike runs fine with the choke so eliminates mechanical and ignition leaving the fuel system. Running poorly without choke indicates a very lean condition. how is the petrol tank and fuel filters.....getting fuel to carbs? you mention the carbs fitted are from a T150, gotta wonder what other differences there are between the T160 but swapping the carbs on your bike should see if the issue follows. Given that the carbs are the issue full strip down again and have them sonic cleaned.
Modern composite head gasket squishing up and letting air leak in? i.e. and running lean? I rebuilt the top end of my machine, and left it for a year during covid. I had procured new carbs and had a few other jobs to do. In checking things over before picking up the project up again, I found all the head bolts were loose where the gasket had settled.
I've already re-torqued rge head down and checked compressions- all good. I'm now as certain as I can be that the pilot circuits in the carbs are blocked
Your wife has a good idea :) Sounds like the pilot circuit isnt delivering enough fuel or its drawing air from the manifold/rubbers. Are the carb O'Rings good? Are the float bowls flat? Is the fuel level correct? (4.33mm to 6.35mm) from the top of the bowl.
All good. I'm now sure that the carbs' pilot circuits are blocked. Just waiting for size 78 dril bits to arrive which should be the correct size to clear the pilot circuits out.
Well that's that. It was the only difference I could see between the two setups @@Chris.rooke150 I really enjoy these videos because it's like following a "Whodunnit" on TV 🙂
Are you sure that the pilot circuits are drawing fuel from the float bowls and up into the pilot jets? A lot of these have been badly/insufficiently machined from the factory. You should consider using a 3.5mm drill to drill through the blanking plug on the pilot fuel tract at the back of the carb through to the cross gallery towards the front of the carb I've had to drill though 1/2 to 3/4" of virgin metal on two of my carbs of late in order to 'clear' the fuel passage way to the pilot jets. When you've finished simply tap and fit a 5mm grub screw to seal the passageway where the blanking plug originally was. On one of my T160s which never really idled well the centre carb had been in this condition since it left the factory in '77.. You can do all three in a couple of hours: enjoy..
@chris.rooke150 Gerard Rowley helped identify which carb was at fault on one of my T160s by using a temp detector gun on the headers whilst at tickover: identified the centre carb was doing nothing. I needed to drill through 1/2" of metal to 'clear' the pilot jet fuel tract (and this on a carb that was fitted OEM by the factory in the 70s)
They are from LP Williams advertised on their website as for T160s. They sell them with or without baffles. I think that the ones fitted to both the T160s in the videos are the standard ones.
The T160 is still a beautiful bike, it’s stood the test of time. And it sounds wonderful too.
As with any Amal, at the first hint of trouble clear the pilot. Hot glueing the drill bit or apiece of appropriate guitar string into the end of one of those red straws from carb cleaner and such , makes for a fine pilot clearing tool. Don't leave home without one . Great video series . Liked and subbed. Cheers
It's a 50 year old bike. Everything needs restoration.
The sheer patience involved should get you an Amalaholics Anonymous Gold Badge. I ran out with mine so will spend the rest of my ownership hiding from purists!
😆😆😆
back to basics Chris........the bike runs fine with the choke so eliminates mechanical and ignition leaving the fuel system. Running poorly without choke indicates a very lean condition. how is the petrol tank and fuel filters.....getting fuel to carbs? you mention the carbs fitted are from a T150, gotta wonder what other differences there are between the T160 but swapping the carbs on your bike should see if the issue follows. Given that the carbs are the issue full strip down again and have them sonic cleaned.
Modern composite head gasket squishing up and letting air leak in? i.e. and running lean?
I rebuilt the top end of my machine, and left it for a year during covid. I had procured new carbs and had a few other jobs to do. In checking things over before picking up the project up again, I found all the head bolts were loose where the gasket had settled.
I've already re-torqued rge head down and checked compressions- all good. I'm now as certain as I can be that the pilot circuits in the carbs are blocked
Bit of a long shot but check the fuel taps I had same problem turned out taps were not flowing properly
Thanks. Fuel taps are fine.
Your wife has a good idea :)
Sounds like the pilot circuit isnt delivering enough fuel or its drawing air from the manifold/rubbers. Are the carb O'Rings good? Are the float bowls flat? Is the fuel level correct? (4.33mm to 6.35mm) from the top of the bowl.
All good. I'm now sure that the carbs' pilot circuits are blocked. Just waiting for size 78 dril bits to arrive which should be the correct size to clear the pilot circuits out.
Checkout the air filter
Thanks, it's a brand new air filter and I've tried running the engine with it off - no difference.
Well that's that. It was the only difference I could see between the two setups @@Chris.rooke150
I really enjoy these videos because it's like following a "Whodunnit" on TV 🙂
😅😅😅👍
Just out of interest, what do you set your idle speed at? I’ve been told 900-1000rpm.
About that. Don't go too low as you may well starve the main bearings and big ends of oil.
Are you sure that the pilot circuits are drawing fuel from the float bowls and up into the pilot jets? A lot of these have been badly/insufficiently machined from the factory. You should consider using a 3.5mm drill to drill through the blanking plug on the pilot fuel tract at the back of the carb through to the cross gallery towards the front of the carb I've had to drill though 1/2 to 3/4" of virgin metal on two of my carbs of late in order to 'clear' the fuel passage way to the pilot jets. When you've finished simply tap and fit a 5mm grub screw to seal the passageway where the blanking plug originally was.
On one of my T160s which never really idled well the centre carb had been in this condition since it left the factory in '77..
You can do all three in a couple of hours: enjoy..
Yes, it's certainly something like that. Pilot circuits are definitely blocked somewhere.
@chris.rooke150 Gerard Rowley helped identify which carb was at fault on one of my T160s by using a temp detector gun on the headers whilst at tickover: identified the centre carb was doing nothing. I needed to drill through 1/2" of metal to 'clear' the pilot jet fuel tract (and this on a carb that was fitted OEM by the factory in the 70s)
Pilot jets need cleaning?
Yes, it now looks like it's the pilot circuits that are blocked.
What exhaust is that? Sounds good!
They are from LP Williams advertised on their website as for T160s. They sell them with or without baffles. I think that the ones fitted to both the T160s in the videos are the standard ones.