How much CARB do i need?????

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????

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

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?

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?

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.

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.

[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.

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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