I'll be pulling all three carbs and replacing the rubber boots on my 300F Freestyles soon and could use some info. I bought some bowl gaskets and intend to verify the Float Bowl Height while cleaning them up...Anyone have specs they can share?

Things to do/look for while they're off and apart?

Thanks in advance,
Hacksaw.

Anyone?

I've got a manual...........I'll go look.

Alright..........which one of you used my manual and didn't return it? I can't find that book anywhere!

Getting late........will look again tomorrow.

Thanks for your help!

i looked in the shop manual but coundnt find it

24 mm is the right level.

Thank you.

Could this be why my daughter's 300 Freestyle idles like crap when it is cold?

I removed the carb and replaced the boot on one of my Freestyles the other day. It was just before HiOctane posted the 24mm spec. I removed and cleaned the bowl and cleaned out the main jet with a piece of straw from a broom. This particular Freestyle was a good running and idling machine so I didn't change any settings. The main purpose of the job was to replace the boot (intake socket) because it was sufferring from the infamous dry rot/cracking that all these 300's are prone to. I only cracked open the carb because I had no prior knowledge of this Freestyles' history. The second of the pair that I bought together starts hard and idles rough. I will pay particular attention to the underside of the boot near the molded flange when I remove it. I'm thinking that the rubber may have cracked all the way through and is drawing air. If nothing suspicious is found, I'll check and recheck the float setting and what-not when I pull the bowl off. I'll report back when I get around to the second of the three. The third one will only get a boot replacement since it only has about 100 miles on it and runs like a top. I just wanted to replace all three rubber boots at the same time for easier maintaince records. They all have spidering/checking in the rubber, but the two used ones are much worse.

Did I answer your question? No. But if I find a cure for mine, I'll let you know what it was that plagued it's idle. I've never been much of a fuel systems guru...

Hacksaw.

I don't know Hacksaw but I know I'm not the only one that has had idleing issues when the daughter's 300 is cold. Once it warms up it idles fine but cold it wants to flood so I doubt that it is a boot issue since that should make it idle faster.

Well, I removed and replaced the carb boot on the electric start Freestyle today. Upon initial inspection, I noticed that the locating pins on the bottom of the carburetor bowl were not seated in the rubber grommets and the airbox clamp was not around the metal carburetor support "tang".
The rubber boot had been supporting the carburetor & the airbox all by itself. I replaced the boot while my brother cleaned the carburetor. The float height was at 25.50mm when we checked and was readjusted to 24mm per HiOctanes post. My brother used a piece of straw from a broom again to clean and polish the main jet, then blew it all out well with air and reassembled everything. I slapped that puppy back on (properly this time), cranked it over a few revs to refill the bowl, and it started right up. I think I just had a visual memory of the carburetor and airbox shaking and rattling around that made me think the idle was rough... It sure runs fine now! The boot was nearly comprimised with deep cracks on it's underside, but not quite. it was definitly time to change that one, though!

Two down, one boot replacement to go!

Hacksaw.