Sup ya'll. Still haven't done scooter BBK, but staying busy otherwise. Chain broke on motorcycle the other day, although it could not have been more convenient... coasted right back into my driveway. Luckly not some 200 miles away hiking in the Adirondacks! All the surrounding chain guards are tore up and need to be replaced. Man this supply chain market f#$cIng sucks. It won't be til April before I get everything. In the meantime, good opportunity to clean everything up. 10,443 miles on the ODO.
Why did the chain break? Is it a standard size chain or some special product?
-Mac 71/100+ yr OLD Engineer. Certified Lunatic with CRS. Never PC. Tired, Deaf, Weak, Blind, Worn out, and Stupid. Delete Facebook and Twitter-X. 2012DongFang POS 50cc4T Ruck-style Reverse Trike w/2 front TIRES:)
Post by fuzzyruttin on Mar 4, 2023 20:41:28 GMT -5
Nah mostly assume user error. or not. OEM chains are not of the highest quality. Had i properly identified the vast differences between the tight n loose spots, this could have easily been diverted. But that's apparently not my style... catastrophic failure or just keep going. Bang
Post by FrankenMech on Mar 4, 2023 21:30:16 GMT -5
Chains and sprockets are wear items, especially bike and motorcycle applications exposed to a dirty world. As such they need to be replaced regularly.
As a youngster I had to laugh at the local idiots that complained about their aluminum -oops aluminuminumin sprockets failing on their crotch rockets. Aluminxxxx sprockets to save weight and rotational mass - LOL.
-Mac 71/100+ yr OLD Engineer. Certified Lunatic with CRS. Never PC. Tired, Deaf, Weak, Blind, Worn out, and Stupid. Delete Facebook and Twitter-X. 2012DongFang POS 50cc4T Ruck-style Reverse Trike w/2 front TIRES:)
Got over 10k miles on stock set chain n sprocks. Can't complain really. DID X-ring chain going on. That should gain 1/2 horsepower over the O-ring. Which is significant for a 45 horsepower bike. Got a small front sprocket to try later on too. It's gonna be a wheelie monster hehe
The O-ring chain usually holds lube better. To avoid failure maybe replace the chain at some reasonable interval when you service the bike otherwise in order to avoid failures that damage other parts (boom). I would not worry about 1/2 HP as "significant" on a 45HP bike
My son was too busy to replace his timing chain when it was due on his Lincoln LS at 150K and his engine went BOOM at 180K He left it sitting in my drive to avoid looking at it. -out of sight, out of mind...
I have also been guilty of figuring 'it's working' and letting maintenance go with catastrophic results... I think the UK with their periodic MOT may be a ~good system sometimes
Unfortunately now that I am feeling a little better physically the deferred maintenance 'nightmare' I face is depressing and affecting me physically.
Last Edit: Mar 5, 2023 7:26:46 GMT -5 by FrankenMech
-Mac 71/100+ yr OLD Engineer. Certified Lunatic with CRS. Never PC. Tired, Deaf, Weak, Blind, Worn out, and Stupid. Delete Facebook and Twitter-X. 2012DongFang POS 50cc4T Ruck-style Reverse Trike w/2 front TIRES:)
Post by fuzzyruttin on Mar 5, 2023 10:09:19 GMT -5
Yeah I never ran an X-ring chain before, so figured I would give it a try... significant, as in, 1% gain? Ha I'll take it. But yes, these are definitely wear items. 4-to-1 txres-to-chain replacement ratio.
Once you start getting tight spots in a chain, it's toast. Always better to replace it. If it snaps and takes out the engine cases, it's a very bad day.
Yamaha Aerox NS50 2016 project Yamaha Aerox NS50 2016 Piaggio Typhoon 2019: Great scooter, poorly built (sold) Yamaha Slider 2002: The problem child (sold) Yamaha BWS NG: The Family affair (son now owns) Yamaha Aerox YQ50 2008: The fast one (sold) Yamaha Jog RR 2004: The first one (sold)
Mrs Bud 10/06/22 you are not going to pull that engine apart and put lots of new bits in it, are you?
Post by FrankenMech on Mar 5, 2023 13:38:43 GMT -5
I looked up X-ring chain and it is a modified O-ring type for reduced friction. I just wonder how the tiny X-rings hold up to abrasion. They are claimed to last 20k miles versus 10k miles for a standard O-ring type. Anyone know what type of elastomer is used for the X-ring? Still a wear item like you said. You can still get better performance increases with a couple racing stickers.... LOL
One can buy a standard ANSI chain at the hardware store in order to keep riding while waiting for an X-ring chain. I keep a stock of various size chain in my 'junk box' just for replacement of worn chain. If I remember correctly I have about 100' of #40 chain. I don't keep inventory... But then I used #40 chain for many of my FrankenMech projects
-Mac 71/100+ yr OLD Engineer. Certified Lunatic with CRS. Never PC. Tired, Deaf, Weak, Blind, Worn out, and Stupid. Delete Facebook and Twitter-X. 2012DongFang POS 50cc4T Ruck-style Reverse Trike w/2 front TIRES:)
Got a '78 Honda NC50 I've had waiting for a moment rebuilt today, it hasn't been licensed since 1987 and the person I bought it from did almost everything (wrong) that they could think of to get it to run.
I had to put a new piston, rings, head, reeds, intake, carburetor, coil, generator, tires, brakes, and a whole buncha wiring in it to get it going. But its running well now. Just need to get the rest of the wiring patched up and I can take it for a spin.
Today I pushed the son's bike out and will be getting on with the carb clean later after hospital and be fitted with a hearing aid.
One bonus didn't even realise I had already taken the carb off.
Violet the Vespaclone (lml star 2t 150cc 4speed) with sidecar. It's TYRE'S not TIRE'S A reminder to self, do buy more scooters but not Peugeot's or Vespa 4 poke with in inaccessible spark plugs ever!
Post by FrankenMech on Mar 7, 2023 13:38:41 GMT -5
What type of hearing aid is being fitted?
-Mac 71/100+ yr OLD Engineer. Certified Lunatic with CRS. Never PC. Tired, Deaf, Weak, Blind, Worn out, and Stupid. Delete Facebook and Twitter-X. 2012DongFang POS 50cc4T Ruck-style Reverse Trike w/2 front TIRES:)
Violet the Vespaclone (lml star 2t 150cc 4speed) with sidecar. It's TYRE'S not TIRE'S A reminder to self, do buy more scooters but not Peugeot's or Vespa 4 poke with in inaccessible spark plugs ever!
Post by fuzzyruttin on Mar 7, 2023 18:05:33 GMT -5
The truck would not shift into reverse last weekend. Manual transmission. After taking the gear box housing apart, I found that the nylon (? Toyota OEM) shift seat had completely dissolved. I paid a premium $25 in shipping for $20 in parts to get new seat/bushing tomorrow, which is basically nothing considering the annual maintenance I pay just to keep this hunk of rust on the road. I am strongly considering a new truck... just to drag it through this lovely NYS salt. Yuk.
Post by FrankenMech on Mar 7, 2023 20:55:24 GMT -5
Some of those plastic parts just get brittle and seem to dissolve into powder. A shift bushing did the same thing on my Chevy Venture van. I fixed it right in front of my bank with a zip tie on the linkage It worked until I got new parts off Amazon. Salt is bad crap but UV rays, ozone, and air pollution destroy some plastics. You can't even find the parts, at the scrapyard because they are bad too and crumble in your hands, or at the dealer. Plastic and electrical connections are made to fail for 'planned obsolescence'. Vehicles fail due to rust, corrosion, and irreplaceable little plastic parts. Remember the early 70's vehicles that disappeared due to unobtainable emission parts and cracked hoses? We used to call the engine compartments 'snake pits' because of all the tubing. Remember plastic timing chain sprockets? We now have plastic timing chain guides...
Last Edit: Mar 7, 2023 20:57:47 GMT -5 by FrankenMech
-Mac 71/100+ yr OLD Engineer. Certified Lunatic with CRS. Never PC. Tired, Deaf, Weak, Blind, Worn out, and Stupid. Delete Facebook and Twitter-X. 2012DongFang POS 50cc4T Ruck-style Reverse Trike w/2 front TIRES:)