Re: One hump or two ?

James Corbally /
This single post is part of a larger thread. Start from the top or view this post in context.

"One hump or two", I like that :)

Fred wrote:

>

>

> Your description of "my top speed and full throttle are not

> the same thing" is an almost perfect description of a 'too

> big' main jet.

>

Excellent, we're probably on the right track so.

> The main jet is supposed to be the controller of fuel at full

> throttle/top speed.

> .. the needle is supposd to control 1/4 to 3/4 throttle

> ...the pilot is supposed to control idle to 1/4 throttle

>

Which is why I thought my throttle setup was so weird. More twist should equal more power AFAIK.

> First try a short test with NO air filter... speed go up?...

> plug not white?..

Actually, I did that last year. When my air filter box lid was stolen, I replaced it and first began noticing a flat spot. The shop suggested that test, and when tried, the machine took off down the street. Was only a short test however, no more than 150-200 metres. I've still got "fiddly" throttling to this day. Then again, it had only been derestricted a short while before the theft, so it may have had the same "spot" before as after.

It's my plan to replace the entire air box before I do too much fiddling, remove the filter "variable", so to speak Even so, the fact that Suzukis' own manual has no other model of this machine with such a big main jet is telling. Perhaps the dealer fiddled with it when he installed the carb heater....

> Then go to the Suzuki dealer and buy the next 2 or 3 sizes

> smaller main than what you already have.

>

I'll start looking into that.

> Put the air filter back on...

> Then set the needle clip back to its original position.

>

> Then test the first size smaller main.. ('test' meaning both

> performance and plug color)

>

> If the plug is not too white... try the next one smaller again.

>

> Just watch the plug color!

> Going white can mean a piston seizure!

> (at least $100 US to fix... 70 pounds?.. and a week or two to

> wait for parts)

>

Need to avoid that! This thing is my ticket to work. Otherwise it's out of bed at 5:30am to arrive in work at 7:45amshudder, as opposed to getting up at 7:00!! Did that for 3 years, don't wanna do it again....

> Note : Too much oil on a foam filter is a common mistake

> causing 'richness'... put the filter between absorbant paper

> and set a heavy book on it and let the excess oil get

> absorbed out over time.

Nice idea, a "filter press" of sorts :) I've just cleaned/reoiled, so I'll be sure to check I didn't overdo it.

Thanks to everyone for their ongoing help BTW, I usually don't get replies on Usenet, or the enjoyable conversation!

James...

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  A camel through my main jet?Topic by: James A. Corbally James A. Corbally 08/18/01 09:41PM
  Re: A camel through my main jet?Re: Brian S Brian S 08/19/01 08:51AM
  Re: A camel through my main jet?Re: Ron Brown Ron Brown 08/19/01 12:31PM
  Re: A camel through my main jet?Re: Fred Fred 08/19/01 02:21PM
  Re: A camel through my main jet?Re: James A. Corbally James A. Corbally 08/19/01 08:17PM
  One hump or two ?Re: Fred Fred 08/19/01 08:51PM
  Re: One hump or two ?Re: James Corbally James Corbally 08/19/01 09:45PM

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account