Scooterotica

Is there a procedure that you must follow when replacing the piston on the kickstart shaft? I can't understand why mine is still not engaging when I kick it over. I am wondering if I have not done something I should have when I replaced the piston. Any thoughts?

Hi mate, when the piston was replaced and the stud tightened back up, was there free movement ( up and down ) on the shaft, I had similar problem and turned out it was sticking in the shaft......if its an LI type endplate check the guide plate on the chaincasing also........

Trojan wrote:Hi mate, when the piston was replaced and the stud tightened back up, was there free movement ( up and down ) on the shaft, I had similar problem and turned out it was sticking in the shaft......if its an LI type endplate check the guide plate on the chaincasing also........

When I replaced it, the piston was moving in and out nicely, when I pushed it in with my finger, then I put the casing back on and it started playing up again. Now, when the kickstart slips, when I push it down with my foot slowly, I can hear a click as it obviously tries to engage each tooth on the first gear and then eventually it will engage and I get pressure and am able to kick the engine. I am thinking that it 'must' be sticking because if it were anything else, for example if it weren't coming out far enough, then it would do it all the time.

alanscottj wrote:Is there a procedure that you must follow when replacing the piston on the kickstart shaft? I can't understand why mine is still not engaging when I kick it over. I am wondering if I have not done something I should have when I replaced the piston. Any thoughts?

Sold and fitted a 'J' range Kickstart piston by mistake???
I did it once

Is the stud that screws into the piston OK , looking for any highspots or wear may be the cause on the piston travel not engaging fully, what endplate is it LI or GP/SX type with the heel as this may show any wear ...hope this helps.....

Similar problem a while back,i cured it by elongating the slot where the locating pin slides up and down!

When I fitted my 5 speed the teeth on the piston were engaging all the time. I thought I was going to have to get into major surgery but I found another piston ant the hole for the pin was further down so pulled the piston back a little further and that one works fine. Seems like there are variations even in this simple component.

Did you change the reference pin as well? These can wear fairly quickly and the ramp scores a deep groove in them, affecting where the kick start plunger engages with first gear.

dapper wrote:Did you change the reference pin as well? These can wear fairly quickly and the ramp scores a deep groove in them, affecting where the kick start plunger engages with first gear.

Yes, changed the pin too!

kevspeed wrote:Similar problem a while back,i cured it by elongating the slot where the locating pin slides up and down!

I might have a go at this, how much longer did you make the slot?