{"product_id":"yamaha-raptor-660-stage-1-camshaft-2001-2005-hot-cams-yfm660s1-a","title":"Yamaha Raptor 660 Stage 1 Camshaft 2001–2005 | Hot Cams YFM660S1-A","description":"\u003ch1 data-start=\"134\" data-end=\"206\"\u003eYamaha Raptor 660 Stage 1 Camshaft (2001–2005) – Hot Cams YFM660S1-A\u003c\/h1\u003e\n\u003ch2 data-start=\"208\" data-end=\"228\"\u003e🛠️ Description\u003c\/h2\u003e\n\u003cp data-start=\"229\" data-end=\"686\"\u003eBoost your Raptor 660’s performance with this Hot Cams Stage 1 camshaft. Engineered for riders looking for stronger low-end torque and mid-range pull, this cam delivers a noticeable 5–10% power gain while still working with stock valve springs and decompression components. CNC-machined from billet steel and dyno-proven in the USA, it’s a reliable upgrade for trail riders, dune shredders, and anyone who wants more grunt without sacrificing rideability.\u003c\/p\u003e\n\u003ch2 data-start=\"688\" data-end=\"710\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul data-start=\"711\" data-end=\"770\"\u003e\n\u003cli data-start=\"711\" data-end=\"770\"\u003e\n\u003cp data-start=\"713\" data-end=\"770\"\u003eStage 1 camshaft (intake \u0026amp; exhaust profiles integrated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"772\" data-end=\"787\"\u003e📦 Fitment\u003c\/h2\u003e\n\u003cul data-start=\"788\" data-end=\"942\"\u003e\n\u003cli data-start=\"788\" data-end=\"818\"\u003e\n\u003cp data-start=\"790\" data-end=\"818\"\u003e2001 Yamaha YFM660R Raptor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"819\" data-end=\"849\"\u003e\n\u003cp data-start=\"821\" data-end=\"849\"\u003e2002 Yamaha YFM660R Raptor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"880\"\u003e\n\u003cp data-start=\"852\" data-end=\"880\"\u003e2003 Yamaha YFM660R Raptor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"881\" data-end=\"911\"\u003e\n\u003cp data-start=\"883\" data-end=\"911\"\u003e2004 Yamaha YFM660R Raptor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"912\" data-end=\"942\"\u003e\n\u003cp data-start=\"914\" data-end=\"942\"\u003e2005 Yamaha YFM660R Raptor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"944\" data-end=\"966\"\u003e🛡️ Warranty Info\u003c\/h2\u003e\n\u003cp data-start=\"967\" data-end=\"1076\"\u003eHot Cams camshafts are backed by a \u003cstrong data-start=\"1002\" data-end=\"1029\"\u003emanufacturer’s warranty\u003c\/strong\u003e against defects in materials or workmanship.\u003c\/p\u003e\n\u003ch2 data-start=\"1078\" data-end=\"1098\"\u003e🔑 Key Features\u003c\/h2\u003e\n\u003cul data-start=\"1099\" data-end=\"1372\"\u003e\n\u003cli data-start=\"1099\" data-end=\"1150\"\u003e\n\u003cp data-start=\"1101\" data-end=\"1150\"\u003eDrop-in camshaft – no need for upgraded springs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1206\"\u003e\n\u003cp data-start=\"1153\" data-end=\"1206\"\u003eDesigned for \u003cstrong data-start=\"1166\" data-end=\"1204\"\u003elow-end torque and mid-range gains\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1207\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1209\" data-end=\"1240\"\u003eAdds 5–10% overall horsepower\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1295\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1295\"\u003eCNC-machined from 8620 billet, case-hardened steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1296\" data-end=\"1334\"\u003e\n\u003cp data-start=\"1298\" data-end=\"1334\"\u003eUses stock decompression mechanism\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1335\" data-end=\"1372\"\u003e\n\u003cp data-start=\"1337\" data-end=\"1372\"\u003eDyno tested and proven in the USA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1374\" data-end=\"1395\"\u003e\u003cstrong data-start=\"1374\" data-end=\"1393\"\u003eCamshaft Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1396\" data-end=\"1583\"\u003e\n\u003cli data-start=\"1396\" data-end=\"1456\"\u003e\n\u003cp data-start=\"1398\" data-end=\"1456\"\u003eIntake Lift: 8.50 mm | Duration: 254° | Centerline: 106°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1457\" data-end=\"1518\"\u003e\n\u003cp data-start=\"1459\" data-end=\"1518\"\u003eExhaust Lift: 9.40 mm | Duration: 246° | Centerline: 106°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1519\" data-end=\"1550\"\u003e\n\u003cp data-start=\"1521\" data-end=\"1550\"\u003eIntake Valve Lash: 0.200 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1551\" data-end=\"1583\"\u003e\n\u003cp data-start=\"1553\" data-end=\"1583\"\u003eExhaust Valve Lash: 0.250 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1585\" data-end=\"1614\"\u003e💲 Price Match Guarantee\u003c\/h2\u003e\n\u003cp data-start=\"1615\" data-end=\"1732\"\u003eIf you find this camshaft for less from an authorized dealer, we’ll match it. Shop confidently at DuneGoonShop.com.\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46794071408865,"sku":"YFM660S1-A","price":377.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-raptor-660-stage-1-camshaft-20012005-hot-cams-yfm660s1-a-7887898.jpg?v=1763569578","url":"https:\/\/dunegoonshop.com\/products\/yamaha-raptor-660-stage-1-camshaft-2001-2005-hot-cams-yfm660s1-a","provider":"Dune Goons","version":"1.0","type":"link"}