87 savage wrote on 04/27/13 at 07:12:33:maxtowers wrote on 04/27/13 at 00:35:48:87 savage wrote on 04/26/13 at 19:10:04:maxtowers wrote on 04/26/13 at 15:59:08:A friend suggested that maybe could be the muffler obstructed by residue since probably it has never been cleaned... is it realistic? He suggested to run for a while without the muffler or with one less restricted and see what happens in the span of about 50 miles that is the average that i had between needing to pull the spark plug and clean it.
Hi Max, when you say after 50 miles you have to clean the plug, is it because the plug is sooted up..black? That would mean you are way rich. If as you say your main is 130 and your pilot 47.5, you should not be rich at all, lean if anything. I've read this post twice and I don't see anything about the float level mentioned. Have you set the float level? As messed up as those floats are, if they don't float properly and keep the proper fuel level in the float bowl that could cause you to be way rich. If the float level measures right: (carb off the bike, float bowl removed, carb upside down. Measure from the carb
body where the bowl gasket sets, to the bottom of the float bowl. Should be approx 27-28mm.) If that is correct drop it a couple mm to 30-31 and see if it runs any better. I just wouldn't trust that float.
That's right, the plug is sooted black... i never considered that possibility, it's a great advice, and i will check promptly... i will see how to regulate the float level on the service manual and report as soon as i have done it.
Thanks a lot for all the inputs guys, by myself i would be lost...
Hey Max, quick note, float measurement instructions should have read:
(carb off the bike, float bowl removed, carb upside down. Measure from the carb
body where the bowl gasket sets, to the bottom of the FLOAT.
bowl. NOT FLOAT BOWL! Should be approx 27-28mm.)
My bad, sorry
No biggie, i guessed what you meant so here's some picture of what i came up with... add 2mm to compensate the dept of the border:
and this is how it is fitted in the carb:
Now i know that this is kind of approximative, but if i flip the float?
like this:
now it measures about 40 mm... i know it's a bit too much, but is it conceivable?
"
verslagen1 wrote:In this case, a by-the-book measurement aint gonna do.
take a clear length of tubing, connect it to the drain and run it up along the carb. and open the drain, petcock to prime, level should come up to the bowl gasket with the bike vertical."
The only problem is that i have a normal bolt as a drain pug, so i don't know how to connect the tube to the bowl...
and anyway anyone knows if and how to set the float level? do i have to bend the floats?
I noticed that the bike always start without the need of the choke... is it normal?
Oh and one last particular.... when i kill the engine after a few seconds (sometimes even ten) the bike seems to cough from the exhaust... not too loud, just like a cough...