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Buell Forum » THUMPer Forum » Buell Blast Thumper Knowledge Vault » Diagnosing problems: » Sputtering and loss of top end speed « Previous Next »

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Bob_hoelscher
Posted on Wednesday, October 17, 2012 - 07:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I bought my blast about 2 months ago, and it has been a little fussy, but no major problems. i've figured out that the stock carb boot sucks, and i've replaced it with a stiffer piece of radiator hose, and the boot has been working fine. But another problem has developed.... The bike pulls hard as it accelerates, but once i hit 70mph, the power goes away, the bike starts to sputter, and i cant get past 65 mph. I was able to squeeze about 95 out of it. i've scanned the forums and everyone i've seen with a loss of top end speed, has lost acceleration as well, and my acceleration is ideal. possibly an ignition problem?? no trouble starting, idling, or accelerating, only a loss of top end speed. Any suggestions???
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Ezblast
Posted on Tuesday, October 23, 2012 - 09:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

sigh - ditch fake boot and get a real one.
primary too tight, and clutch too tight.
EZ
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