Just worked out how to comment,, thankyou, the way you speak and show on video is wonderful. You are way better than a Haynes manual. I have learned more in the last hour than I have in the last 5 years. I have included your video in my favourite so I will watch many times. I do hope you are a teacher at a local polytechnic?? I’m in New Zealand, I ride a 74. R75/6
Hello Chris. Sorry, I'm not a teacher at the local polytechnic. I'm just a retired chap playing in his workshop. So glad you enjoyed the videos, they are fun to make but do take a surprising amount of time to produce. I lived in New Zealand for a year or so, I was based in Auckland, worked at the university as a technician in the thermodynamics lab. 1981-82 I think it was. New Zealand is a fantastic place, I almost stayed, but family ties pulled me back to UK. Take Care and thanks again for your comment. Jim
Can I add a little to your carb build ? My 1981 R100RS started leaking fuel out of the left hand carb when the bike was on the side stand ( bike leaning to the left ). At first I thought the float height needed adjusting ( by bending the tab on the float ), my thought being that the bike was now running on E10 fuel instead of leaded fuel, that float buoyancy was affected. After several failed attempts at adjusting the float height I ordered a new float. Bingo, an half hour job fitting the new float with the carb still in place on the bike, no leaks and no float adjustment needed. The job was a little bit fiddly because my model has a very small paper clip type spring fitted through a hole on the needle. The spring clip has to also be then attached to the adjustment tab on the float so when the float drops it pulls the needle down with it. Easy to do with the carb off the bike but not so easy when you're laid on the floor and working upside down. Anyway, all this is to just say that carb floats can lose their buoyancy over time, sometimes it's just better to replace them. 🙂 Please don't feel obliged to do tit for tat replies, I'm just commenting because I'm enjoying bike videos, and in hope it might help someone else too..
Hello Alan. Yes sometimes the foam floats can loose buoyancy. In the old days when they were made of copper, you could shake them by your ear, if any fuel had seeped inside you could hear it sloshing about. How can you tell if a solid foam float has been taking in fuel? I suppose by weight, but you will need to know how much a new good float weighed and have a set of scales sensitives enough to weigh them on. Thank you for the comment. Take Care Jim
I found this out recently on a Bmw r60/6 which was leaking petrol, tired changing float height, but it unfortunately didn’t sort it, I found out you can weigh the float assembly and if it’s not within a given weight it’s time to change for a new one, which I did and it sorted the problem.
Just a quick one please (air mix screw) is that 1 half turn out or two half turns out (= 1 full turn) thanks :-) great videos by the way, nice and informative.
Hello Paul I'm sorry I wasn't clear. The basic setting of the Idling mixture regulating screw is this: Tighten screw fully, then unscrew one complete turn. Hope this helps. Take Care Jim
Thank you sir, beautiful video…..helped me on my journey. Thank you.
Hello Jonathan. I'm glad you found the video helpful, thank you for your comment. Take Care Jim
your airhead videos are a life saver...well done. Mine's a 1974 R75/6
Hello Gary. I'm so glad you find my videos interesting, and what a match for our bikes.
Hope you find the other videos as interesting. Take Care Jim
@@CYC123 just watched the carb one and worked on mine a little for tomorrow DGR.
Hello Gary, good luck on todays (21 May 2023) DGR ride. Whereabouts are you based? Take Care Jim
Just worked out how to comment,, thankyou, the way you speak and show on video is wonderful. You are way better than a Haynes manual.
I have learned more in the last hour than I have in the last 5 years.
I have included your video in my favourite so I will watch many times.
I do hope you are a teacher at a local polytechnic??
I’m in New Zealand, I ride a 74. R75/6
Hello Chris. Sorry, I'm not a teacher at the local polytechnic. I'm just a retired chap playing in his workshop.
So glad you enjoyed the videos, they are fun to make but do take a surprising amount of time to produce.
I lived in New Zealand for a year or so, I was based in Auckland, worked at the university as a technician in the thermodynamics lab. 1981-82 I think it was. New Zealand is a fantastic place, I almost stayed, but family ties pulled me back to UK. Take Care and thanks again for your comment. Jim
Can I add a little to your carb build ? My 1981 R100RS started leaking fuel out of the left hand carb when the bike was on the side stand ( bike leaning to the left ). At first I thought the float height needed adjusting ( by bending the tab on the float ), my thought being that the bike was now running on E10 fuel instead of leaded fuel, that float buoyancy was affected. After several failed attempts at adjusting the float height I ordered a new float. Bingo, an half hour job fitting the new float with the carb still in place on the bike, no leaks and no float adjustment needed. The job was a little bit fiddly because my model has a very small paper clip type spring fitted through a hole on the needle. The spring clip has to also be then attached to the adjustment tab on the float so when the float drops it pulls the needle down with it. Easy to do with the carb off the bike but not so easy when you're laid on the floor and working upside down.
Anyway, all this is to just say that carb floats can lose their buoyancy over time, sometimes it's just better to replace them. 🙂
Please don't feel obliged to do tit for tat replies, I'm just commenting because I'm enjoying bike videos, and in hope it might help someone else too..
Hello Alan. Yes sometimes the foam floats can loose buoyancy. In the old days when they were made of copper, you could shake them by your ear, if any fuel had seeped inside you could hear it sloshing about.
How can you tell if a solid foam float has been taking in fuel? I suppose by weight, but you will need to know how much a new good float weighed and have a set of scales sensitives enough to weigh them on. Thank you for the comment. Take Care Jim
I found this out recently on a Bmw r60/6 which was leaking petrol, tired changing float height, but it unfortunately didn’t sort it, I found out you can weigh the float assembly and if it’s not within a given weight it’s time to change for a new one, which I did and it sorted the problem.
Just a quick one please (air mix screw) is that 1 half turn out or two half turns out (= 1 full turn) thanks :-) great videos by the way, nice and informative.
Hello Paul
I'm sorry I wasn't clear. The basic setting of the Idling mixture regulating screw is this: Tighten screw fully, then unscrew one complete turn. Hope this helps. Take Care Jim
@@CYC123 Thanks Jim, am looking forward to other videos now :-)