Starter idler gear pin length

[ggreen]

Sorry if this is in the wrong section,I didn't really consider it technical or needing advice. 2006,Linhai 300cc.What I was hoping was to find someone with the starter idler gear pin length and diameter. I've had the cover off alot of times and never realised there should be a pin from the case that meets the cover holding the starter gear in place. Now,a deepwell 1/4 in drive,5/16 deep well sits in the pin holes perfectly. Should I cut a lock ring groove in the end of it like a factory pin? I was thinking of just tack welding a washer to the end? 

[Mech]

Best to find/replace the original pin which must have been there or the starter wouldn't have worked.

The original pin will be hardened.

If you use a set of vernier gauges you could measure the depth of each hole the pin goes into, and the depth below the case faces where the pin sits, and by adding all four measurements together you will have the pin length.

[ggreen]

Well,long story short,I bought with a known no spark issue. All troubleshooting till now has been done with the plug out leaving very little backpressure and making it easy for the starter gear to stay aligned.

Now,with plug in,starter is pushing much harder and it only took 1 little back wind for it to drop enough to bind.

Excellant suggestion on the measurments,that is how I will get length. There seems to be a lock ring a certain distance from stater gear,to keep it from rattling around and sliding out of alignment back and forth. I may be forced to buy 1 but,for now I think I have a straight pin that'll work to keep things aligned while I hear it start for the first time(said optimistically)

[Mech]

Oh ok.. The  risks of buying not running..  At least it's a small part.. if you can get one.. An engineer could make you one and harden it for you.. Or you could buy high carbon (0.6%) steel rod and heat treat/harden it yourself.