Trouble Starting When Warm

[roboto65]

That is a good point Chad never thought about that might mess with the floats!!!!

[L J VFR]

Chad, you lost me.    "Screws on the bottom of the float bowl"  Are you talking about the screw nuts that hold the bowls on the the carbs?

[L J VFR]

I think I got it.  You are talking about the drain screws on the bowls and in reference to which way they are facing.. Right??

[TLRam1]

I think I got it.  You are talking about the drain screws on the bowls and in reference to which way they are facing.. Right??

Yes, these are the ones he's talking about. I checked mine last night on carbs I put on last weekend. 

[Chokse]

He sent me an email to clear it up.  He is talking about the drain screws and that all of them should be pointed toward the center of the engine bay area rather than toward the outside of the bike.

[Chad in Michigan]

Sorry, i forgot to check back here. yes, that's what I ment. the drain screws should be pointing toward the center of the carb bank, meaning there shouldn't be any floatbowl drain screws on the outside of the carbs. 

[roboto65]

Actully I think 2 are supposed to pointing out and 2 towards the center if I am not mistaken which does not happen often 

[Chad in Michigan]

they are all supposed to point toward the center. look at the microfishe. the top right carb bowl points in, the left  upper one is hard to see but the drain opening is visible. there are two different part numbers also.

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[roboto65]

Well take that off the list of things that could be wrong because I have 2 facing out and 2 facing in and runs like a champ !!!

[Chad in Michigan]

i had tried it that way and with them all pointing outward, and with my setup it did not work right. i can't remember exactly what the symptoms were, but i was having trouble with the k&n filter, 105 mains and 40 pilots and 2 shims. i had no idea about which way they went. i started looking at stuff, and i think the float levels are different or it picks up differently in the slow jet area.. i forgot. it did run better when i tried it the way the manual sez. FYI, there are two different part numbers for the float bowls, so it must have made a difference where they went or else honda wouldn't have wasted the money on two different parts. also something strange, the sportbike that uses the same motor (vfr750) has them in a different configuration with two different part numbers as well, and the front two carbs have larger main jets and needles compared to the back two carbs. strange..

[I604]

Hi  did you look at the gas tank vent tube

[Chokse]

Vent tube is fine:  Neither clogged nor pinched.  It seems it is a combination of the air filter and of the float bowls being on incorrectly (not all of the drain screws are pointing toward the center).