Post by brentj on Jan 1, 2020 5:08:18 GMT
About two years ago a friend in NSW found a PE250B for me. Thankfully he was able to arrange a sale and pack and send it to me.
The bike had had a hard life but as far as I could see it looked very complete.
The frame needed some welding and straightening but came up ok. The motor had been ported but the local wreckers had a standard motor on the shelf so that gave me a std cylinder to start with. The motor has had new; piston, rings, rebore, rod set, new bearings and seals. The carb is std but I run it a bit rich to try and smooth out the transition to the power band.
The pipe has had the restrictor removed but I wonder if refitting one would smooth out the power delivery. I don’t need any more power, I just want more low end and smoother delivery.
The bike has been in use now for about 12 months and has covered just over 1000km with no problems however modifications are constant and ongoing. The mods are simple and in the interest of reliability and rideability.
The rims are original and one day I’ll get them rolled to remove the last of the dents. They have just been hand polished, the spokes have been replaced and the hubs bead blasted, painted and baked. The brake shoes have been machined to match the radius of the drum. The rear wheel has had the same treatment.
The forks have been cleaned up and fitted with YSS 25lb/in springs and YSS PD valves that I have tuned to suit me. I also run sub tanks as they reduce harshness on sharp edged bumps and give a plusher ride.
The rear suspension is YSS shocks with external damping adjustment. I have altered the internal damping to suit myself, how and where I ride.
The rear tire is a SHINKO 505 “cheater”. It’s a hard terrain tire made of the same rubber as a trials tire. It grips on rock but gives better traction than a trials tire in sand and mud. I’m going to try one of these on my KTM 350 Freeride in place of my favourite DUNLOP D803 trials tire.
I’m running a SHINKO 524 on the front and still have to find a tire I’m happy with.
I run aftermarket offset handlebar mounts to move the bars forward and Renthal bars with minimal sweep back.
I use a Ballard’s light pull clutch lever and have replaced the throttle and cable to make things lighter and smoother.
Footpegs have been moved back by 20mm and swapped for 2007 Honda CRF250R pegs.
Rollers are fitted above and below the swingarm pivot and a guide from a late model bike has been fitted at the rear sprocket. There is no spring loaded tensioner.
I’ve added a small piece of tube to the underside of the footbrake pedal and the rear brake cable anchor to stop the sole of my boot from catching when I move around.
I have made a bash plate from 4mm alloy that covers the clutch cover and release mechanism and the ignition cover on the other side. It will soon be remade in 6mm.
Plastics are from DC and the colour matches my tank. I usually don’t run side panels as I find they push my legs out too much.
The bike had had a hard life but as far as I could see it looked very complete.
The frame needed some welding and straightening but came up ok. The motor had been ported but the local wreckers had a standard motor on the shelf so that gave me a std cylinder to start with. The motor has had new; piston, rings, rebore, rod set, new bearings and seals. The carb is std but I run it a bit rich to try and smooth out the transition to the power band.
The pipe has had the restrictor removed but I wonder if refitting one would smooth out the power delivery. I don’t need any more power, I just want more low end and smoother delivery.
The bike has been in use now for about 12 months and has covered just over 1000km with no problems however modifications are constant and ongoing. The mods are simple and in the interest of reliability and rideability.
The rims are original and one day I’ll get them rolled to remove the last of the dents. They have just been hand polished, the spokes have been replaced and the hubs bead blasted, painted and baked. The brake shoes have been machined to match the radius of the drum. The rear wheel has had the same treatment.
The forks have been cleaned up and fitted with YSS 25lb/in springs and YSS PD valves that I have tuned to suit me. I also run sub tanks as they reduce harshness on sharp edged bumps and give a plusher ride.
The rear suspension is YSS shocks with external damping adjustment. I have altered the internal damping to suit myself, how and where I ride.
The rear tire is a SHINKO 505 “cheater”. It’s a hard terrain tire made of the same rubber as a trials tire. It grips on rock but gives better traction than a trials tire in sand and mud. I’m going to try one of these on my KTM 350 Freeride in place of my favourite DUNLOP D803 trials tire.
I’m running a SHINKO 524 on the front and still have to find a tire I’m happy with.
I run aftermarket offset handlebar mounts to move the bars forward and Renthal bars with minimal sweep back.
I use a Ballard’s light pull clutch lever and have replaced the throttle and cable to make things lighter and smoother.
Footpegs have been moved back by 20mm and swapped for 2007 Honda CRF250R pegs.
Rollers are fitted above and below the swingarm pivot and a guide from a late model bike has been fitted at the rear sprocket. There is no spring loaded tensioner.
I’ve added a small piece of tube to the underside of the footbrake pedal and the rear brake cable anchor to stop the sole of my boot from catching when I move around.
I have made a bash plate from 4mm alloy that covers the clutch cover and release mechanism and the ignition cover on the other side. It will soon be remade in 6mm.
Plastics are from DC and the colour matches my tank. I usually don’t run side panels as I find they push my legs out too much.
