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Air Leak Or What ?


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Hey all,

 

I just changed my airscrew on my carbs because the slots on the top were rounded off...... i reset the airscrews to 2.5 turn out just as before

 

Now ever since then the idle is off...doesnt seem to want to stay running.....

 

I presume new the airscrew settings are prolly not going to be the exact smae as the others were....

 

 

Oh....I sprayed around the carbs with carb cleaner while the moter was running...and it started to run faster....this is an indication of an airleak righ....

 

But whan i repeated the same test with wd-40 the engine rpms stayed the same and did not elevate...so which results do I beleive? the carb cleaner or the Wd-40?

 

I think the carb cleaner is almost liek ether and would raise the rpms regardless because the gas is so thin yes/no?

 

I didnt see any big cracks in the intake boots or anything....I dunno what to do now :(

 

Please advise....

 

Thanks Nick....

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Why not pull the carbs down quick, clean them out. To eliminate the possibility of a clogged jet being the culprit of the hard starting bit. Completely disassemble them, and go from there. Another thing to try when doing a test for air leaks like you have been doing is to use one of those nifty little propane torches. DOn't lite it though. :o Just cra k the valve open, and wave it around the intake area..... Works like a champ, and doesn't make a mess... :unsure:

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hello all,

 

 

The bike starts......thats not the problem....sorry for the confusion...

 

Its just since I replaced the air screws the idle is not the same...i figured that is because the older screws may have been worn..... So I may just have to adjsut the idle... yes/no ?

 

 

My real concern was this...:

 

After i resynched the carbs....I ran the bike and sprayed carb cleaner around the carbs and intakes bling bottle etc....

 

With the carb cleaner the engine reved higher......(was this because carb cleaner is almost like ether and a very thin gas and would penetrate even the slightest crack or was it cuz it got sucked into the airbox.....i tired to cover the air box as best I could...

 

THEN....I did the same test with wd-40 and spryed it all up while the bike was running...and it DID NOT raise the rpms of the engine......my only thought on this was because the wd-40 is heavier and may not penetrate an "air tight" seal or slight crack in rubber...

 

Thanks again everybody....for your input...

 

So my question is still this...Do I have an airleak or not ?

 

Nick

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