Posts
65
Joined
12/29/2016
Location
Ronkonkoma, NY
US
Myself along with 3 other friends all bought 17 CRF 450s within a week of each other. Stock bikes, yet mine is significantly slower. Same map, fuel etc. The bike rides perfectly fine, although when I borrow their bikes it’s a noticeable difference. Less engine braking and way more power. Could this be an ECU glitch/ factory program fault? One of them removed the filter cage and I did the same, but it made no difference. Anyone else encounter this? It was an entire yr before we switched bikes, however to this day I feel like my bike is a pig.
Are you using the same oil? Different oils, especially different viscosity, can place noticeable drag on the engine and make it feel slower. Also, excessive oil level can make the engine feel slower.
Excessive air filter oiling can bog an engine down, although this is more relevant to 2-strokes.
TPS setting?
Hours?
Has the engine ever been apart? Maybe the cam chain is off 1-tooth on the cam?
Since you have multiple bikes there, you could swap ECM's to eliminate mapping.
The Shop
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