CRF114c Posted December 18, 2004 I just installed my 29oz (+13) Trail Tech flywheel on my 05 CRF250R. First of all, its impossible to torque the flywheel nut, I just had to tighten it with the same air ratchet I removed it with, I'm sure it will be fine. Second, the bike now has a very bad dead spot, bog, cough, burp, whatever you want to call it, right off idle. If I give it some clutch or feather the throttle, its fine and runs great, but as soon as I go back to idle speed and hit the throttle, it bogs and never comes back unless I feather the gas. Has anyone ever seen this before? Any adjustments I can make? I dont want to ride the bike like this. Thanks 😢 Share this post Link to post Share on other sites
BigIvyI Posted December 18, 2004 Sometimes a flywheel weight can exacerbate a bog condition, because it takes an extra split second for the engine to speed up and create enough vacume to suck fuel. We've also just gotten a cold snap in the South East. I had a bog come about this week until I richened the fuel screw about a full turn. One trick to lock up the engine so you can torque the flywheel nut is to slip some clean rope down into your sparkplug hole. 😢 Share this post Link to post Share on other sites
4strokearider Posted December 20, 2004 I just installed a 27 oz Trail Tech on my X. To hold the weight during installation I used an oil filter wrench with a rag in between. Worked great with no damage to the new weight. 😢 Chris Share this post Link to post Share on other sites
BazookaJoe Posted December 21, 2004 If you have a welder, you can make a holder which fits into the balancing holes. The holder will be a bar with two approx 1" long diameter prongs welded on. Share this post Link to post Share on other sites
CRF114c Posted December 21, 2004 Chris, Excellent idea. Thanks, Mike Share this post Link to post Share on other sites
