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I can run the bike all the way to redline in first and second but third, fourth and fifth the bike loses serious power about 6.5-7k RPM. The bike has a DJ stage 3 with K&N dual pods (one for 1&2 a second for 3&4). The carbs have been dipped with new o-rings and I have 4-1 exhaust with "performanc" baffle from MAC. I am leaning towards too large main jets but could it be a fuel starvation issue at that low of speed (3rd gear)? I run a fuel filter because the tank has a little surface rust that gets through the petcock filter and I never had an issue with this before the DJ kit with a fuel filter. Has anyone had similar problems?
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Completely different bike but in 5th gear (pulling to redline) I would get something similar fuel starvation. Bike has 0.340 cams, pods, pipe. Switched to a pingle and I still use an inline filter. Problem disappeared.Originally posted by huntb View Post -
Yeah, I feel like a 650 with a stock engine wouldn't have a fuel starvation issue even under the highest fuel demand with an inline filter. The filter is also brand newComment
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Depends on the filter you're using. Some don't flow very well in a gravity feed situation. Others do just fine.Originally posted by huntb View Posthttp://img633.imageshack.us/img633/811/douMvs.jpg
1980 GS1000GT (Daily rider with a 1983 1100G engine)
1998 Honda ST1100 (Daily long distance rider)
1982 GS850GLZ (Daily rider when the weather is crap)
Darn, with so many daily riders it's hard to decide which one to jump on next.;)
JTGS850GL aka Julius
GS Resource Greetings
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Remove the fuel filter and see what happens. What size mains are you using?1981 gs650L
"We are all born ignorant, but you have to work hard to stay stupid" Ben FranklinComment
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I'm using the larger DJ mains that they recommend with an aftermarket exhaust. I'll remove the filter and see what happens.Comment
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