K
koolaid_kid
Guest
Back in the day, there were 3 basic displacements. The 125s were light, small, and speed limited. The 250s were larger, heavier, and decent on the highway. The 175-185 class were a mix; lighter than the 250s and a higher top speed than the 125s. All vibrated, just a fact of life. All would run close to flat out as long as your buttocks and hands could withstand it - no valves to throw or cams to lose timing. On any bike that old, I would consider replacing the seals no matter what. Oil injection is great, but you must remember to keep oil in the tank and read your plug often to make sure the pump was still working properly. Keep spares, and clean them regularly.
I rode with a pair of Yamaha 125 enduros back in the day. We would ride flat out (~60 mph for them) for long runs, 30-40-50 miles at a time. Their bikes never quit, and never gave them issues.
I would select the 185 over the 250 in a heartbeat, all things being equal. Very close on top speed, significantly lighter, a decent compromise between displacement, weight, and speed.
Both very simple machines; terrible brakes, rubber suspension parts, thin seats, but fun and easy to work on.
I rode with a pair of Yamaha 125 enduros back in the day. We would ride flat out (~60 mph for them) for long runs, 30-40-50 miles at a time. Their bikes never quit, and never gave them issues.
I would select the 185 over the 250 in a heartbeat, all things being equal. Very close on top speed, significantly lighter, a decent compromise between displacement, weight, and speed.
Both very simple machines; terrible brakes, rubber suspension parts, thin seats, but fun and easy to work on.