teddcmiller
04-03-2025, 10:32 PM
Long story short, I finally got my hands on the three-wheeler I've been chasing from almost 20 years. I'm an amateur mechanic, so I'll try my best to describe the problem.
When I got it, my father-in-law said that it ran great but it wasn't accelerating as fast as it used to/should. He tried to re-build the carb, and installed an in-line fuel filter because he suspected it was the gas.
When I got it home, I removed the in-line filter and replaced the gas line and started using a small amount of Seafoam in the gas. It started to run better, I got my hands on an old Clymer manual where I read about adjusting the circlip on the throttle needle. I pulled the needle and found out that the clip was set to the 1st lean setting above what would be "neutral". I moved the clip down to the center setting, and it is accelerating/running slightly better.
However, when riding for long periods of time it starts to bog down really bad you can actually feel the machine lurch and it occasionally backfires. During acceleration, it feels like I'm trying to pull a loaded wagon behind me.
Is the throttle needle setting still set to lean? Or do i need to bite the bullet and re-build the carb? Or do i need to take a look at the timing? Or is it something more serious?
Thanks in advance.
When I got it, my father-in-law said that it ran great but it wasn't accelerating as fast as it used to/should. He tried to re-build the carb, and installed an in-line fuel filter because he suspected it was the gas.
When I got it home, I removed the in-line filter and replaced the gas line and started using a small amount of Seafoam in the gas. It started to run better, I got my hands on an old Clymer manual where I read about adjusting the circlip on the throttle needle. I pulled the needle and found out that the clip was set to the 1st lean setting above what would be "neutral". I moved the clip down to the center setting, and it is accelerating/running slightly better.
However, when riding for long periods of time it starts to bog down really bad you can actually feel the machine lurch and it occasionally backfires. During acceleration, it feels like I'm trying to pull a loaded wagon behind me.
Is the throttle needle setting still set to lean? Or do i need to bite the bullet and re-build the carb? Or do i need to take a look at the timing? Or is it something more serious?
Thanks in advance.