I don't know much about the older prairies, but sometimes if you rev it up some and then shift real quick it'll knock em in gear, that's what I gotta do with one of our bayous when it gives me that problem.
Caudle 7c
2007 300ex-Red: Motorsport Products nerf bars, Renthal handlebars, Duro rear tires on Douglas rims, Durablue lowering kit, DG R.A.C.E slip on pipe (red), Dial a jet kit, K&N air filter, Highlifter front spacers- 1 1/2 in., Moose rear spacers.
1987 250x-Red & White: Full FMF powercore exhaust, moose racing air filter, jet kit, bored to 300, cam.- Traded!
2004 Blaster- DG nerf bars, full FMF exhaust, jetted carb-Sold
1986 Lt250r-bored, ported and polished, wiseco piston, front bumper, nerfs, grab bar
2009 Brute Force 650 SRA-Lime Green: Stock(dads)
2009 Bayou 250-Red: Stock(bros)
2008 Bayou 250-White: Stock(moms)