blkdog
05-14-2013, 12:59 PM
Hello,
Just purchased a running 1978 ATC70 last night. Im trying to figure out the gearing. Are these a 3 speed. If so is it all 3 down? Im thinking it's only shifting into 2 gears. I was looking at an old truck when I saw this in the old boys garage. He said it ran but couldn't get it started at that time. He said he just put gas in it and it ran earlier that day because it had set over the winter. He said his grand kids had out grown it but ran fine for him and it was exactly what I was looking for for my boy. He called a few days later and had it running but he ended up taking of the ends of the breather to do so. I rode it a bit trying to figure out gear pattern and I let the boy do some laps. It seamed to run ok despite not knowing gear pattern. It did have a bit of a winning noise which I couldn't tell if it was the front wheel or tranny area. Last night I turned of the gas after using it. It started right of this morning but while getting it up to the house I noticed it would bog when put into gear and it would not stay running. So I started messing with the carb screw and now I can't get it started. I tried some gas in a syringe shooting into carb through breather but no luck there so far. Can anyone tell me the correct adjustments on both carb screws? I know it will run but wondering if my $150 steal was really a steal. The bike looks good for the age but it does need new rear fenders. couple dings in the gas tank but other than that good looking little bike. Any help and info would be greatly appreciated. Im not a mechanic but not afraid to research and learn and get my hands dirty :lol:
Just purchased a running 1978 ATC70 last night. Im trying to figure out the gearing. Are these a 3 speed. If so is it all 3 down? Im thinking it's only shifting into 2 gears. I was looking at an old truck when I saw this in the old boys garage. He said it ran but couldn't get it started at that time. He said he just put gas in it and it ran earlier that day because it had set over the winter. He said his grand kids had out grown it but ran fine for him and it was exactly what I was looking for for my boy. He called a few days later and had it running but he ended up taking of the ends of the breather to do so. I rode it a bit trying to figure out gear pattern and I let the boy do some laps. It seamed to run ok despite not knowing gear pattern. It did have a bit of a winning noise which I couldn't tell if it was the front wheel or tranny area. Last night I turned of the gas after using it. It started right of this morning but while getting it up to the house I noticed it would bog when put into gear and it would not stay running. So I started messing with the carb screw and now I can't get it started. I tried some gas in a syringe shooting into carb through breather but no luck there so far. Can anyone tell me the correct adjustments on both carb screws? I know it will run but wondering if my $150 steal was really a steal. The bike looks good for the age but it does need new rear fenders. couple dings in the gas tank but other than that good looking little bike. Any help and info would be greatly appreciated. Im not a mechanic but not afraid to research and learn and get my hands dirty :lol: