How much CARB do i need?????


7 replies to this topic
  • Wheels up

Posted March 03, 2006 - 08:26 AM

#1

2004 XR 650 L

10.5 wiseco piston
Stage 1 hotcam
Full Yoshimura exhaust
K&N filter
Carillo rod
Barnett clutch
13/48 gearing

Plus all the other mods....


MY QUESTION IS.......

I have a mikuni flatslide tm-38 mm. Will it be enough carb for the motor when jetted right????

  • TimBrp

Posted March 03, 2006 - 09:54 AM

#2

I would suggest a carb that can handle a good dirt load. Like the one the K&N is going to let through.

  • Supplicate

Posted March 03, 2006 - 10:01 AM

#3

I would suggest a carb that can handle a good dirt load. Like the one the K&N is going to let through.

:thumbsup:

might I suggest going to a UNI or similar?

  • cleonard

Posted March 03, 2006 - 10:01 AM

#4

I sure agree on the K&N. If your going to ride street only, then the K&N should be OK. If you will be riding dirt, go back to the oiled foam filter.

Make sure you are on the rich side. If it goes lean when it's hot with that 10.5:1 piston, it'll fry. Do yourself a favor and get one of those oil temp gagues. Over 300 is bad.

One thing I've never understood, what do the aftermarket rods do for the engine? Are they lighter or something?

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  • JackAttack

Posted March 03, 2006 - 10:03 AM

#5

I would suggest a carb that can handle a good dirt load. Like the one the K&N is going to let through.


I'm just taking a guess here...but I bet he rides mostly on the street.

That carb should be fine. See- Bernoulli's Principle.

  • TimBrp

Posted March 03, 2006 - 10:04 AM

#6

I agree with the temp dipstick but typically those read out what the oil temp is in the holding unit(frame) where the oil will cool. Those temp strips are nice, mount one on your radiator and one on the cylinder and use them. They're fairly accurate too.

  • HawkGT

Posted March 03, 2006 - 10:38 AM

#7

[snip]...One thing I've never understood, what do the aftermarket rods do for the engine? Are they lighter or something?


Lighter and stronger. They don't really increase horsepower (although parisitic HP loss is reduced with lighter components) but they will help an engine spin up faster and aren't likely to wind up poking out of the crankcase.

  • Wheels up

Posted March 03, 2006 - 02:44 PM

#8

I'm just taking a guess here...but I bet he rides mostly on the street.

That carb should be fine. See- Bernoulli's Principle.



Actually I ride mostly offroad. I have a UNI also that I will use. Thanks.

IS a TM-38 enough carb?





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