I have an 85 250R with a kicker that it starting to slip. ever now and again I will feel it pop or slip a tooth when kicking. I have not yet taken it apart to see which gear is having issues, but If I had to guess I would think the ratchet gears are the source of the problem. Looking at the repair manual it seems that honda slightly altered the kickstarter in these motors in 86. I am sure it will keep working for a little while, and I want to get an entire assembly before I pull the motor apart. Will the shafts and kicker gears from 86+ trx's and the 86 atc work in my 85 and is there an advantage in installing one from a later model?