The slipper piston design isn't necessarily a good idea in a high revving engine. I think my motor lasted 4 years before the grenade affect. What happens in a lot of cases is the piston skirts crack. 1st with tiny hairline cracks that will cause very little smoke, but residue in the exhaust pipe will be noticeable. And whens the cracks get worse and the skirt finally breaks loose, theirs nothing to hold the rest of piston in place. So there goes your jug! I also noticed a decrease in power in mine like 3-4 rides before it blew. I thought it was something else like just handling better with all the upgrades I did, because I was using higher gears in places I never did before. The quad was still extremely fast, just laying down some in the higher part of each gear. I'm thinking about taking mine apart again before next session. Especially since I've been sitting on a big bore kit for about 2 years. I to have a limit on space to work, as I have a 2.5 car garage with 5 quads, 1 car and tons of crap in it, but its a toasty 69 degrees!
As far as a good place for rebuild kits. That depends on your budget of coarse. If low budget, look on eBay for a wiseco piston. And get one 103 or 104. factory is 102. Also order a top end gasket kit. You will have around $200 in this. When you get the piston, take it and the jug to you local machine shop to bore it out.
#1 2008 Honda Trx700xx HMF Performance Exhaust, PCV, Stroked 710cc, 10.5:1 Wiseco Piston, Frt Elka Stage 4's, Fox Podium X rear's, EHS Lid, L8ton 11/16" sway bar, PRM Desert II Bumper & Front Skids.
#2 2008 Trx700xx AMR Reaper, Ehs Big 3, P/P head, Xcalibur Cam, Hard Welded Rockers, +1 In/Ex Valves, +3 Throttle body, 11:1 CP Piston, Elka Stage 3 Legacy Shocks, L8ton 11/16th Sway Bar, PRM Front Skids, Desert II Bumper & Rear Utility Rack.
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Last edited by M_Quick; 12-31-2016 at 11:31 AM.