Katriders Rally 2007 - Deals Gap, NC

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Mechanics 101 Can't get it to run right? Find a trick to add HP?
From the first oil change to completely rebuilding the engine,
this is the place to talk about the heart of the beast!

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Old 06-14-2018, 06:55 PM   #11
Kat King
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Join Date: Nov 2008
Location: Weaverville, NC
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Originally Posted by Lachie View Post
Standard jetting

Sounds like running rich in low-mid range float heights could do that you don't say what they are if less than 13mm this is on the rich side.

I just use a slide rule (vernier caliper) so I can change the distance to what I want

And make sure needle jet and jet needle are not worn (ovaled) or grooved

Hmm just remembered this,, odd indeed! have heard similar issues with coils or plugs breaking down not sure how you would check them apart from measuring resistance or trying a known set if you can beg borrow a set.

Do you still have the 750 swapping them over could check it out they are both the same
Poor running / low power under 5k certainly could be a poor connection for the plug boots, or arcing causing a weak spark.

A general check on that is checking power to the coils (orange /white line wires) have minimal 11v, pull the plug wires and check the caps are on the wires tight, the wires are not hard or unflexible. If the ends where the caps plug on are hard, or if the caps will pull off... clip back 1/2" to 1" of wire back to soft flexible, and screw the boots back on. Also you can run the bike wtih the tank off the bike in the dark/ night time... and check for any stray arcing from plug boots in the wells or on the wires.

93 750 Kat

Modified Swingarm, 5.5 GSXR Rear with 180/55 and 520 Chain, 750 to 600 Tail conversion, more to come. Long Term Project build thread http://katriders.com/vb/showthread.php?t=96736

"I've done this a thousand times before. What could possibly go wron.... Ooops!"
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