TTLX had a loose main jet......

Garret /

Jan 28, 2002 03:47PM

finally got pissed & dropped the engine, tapped out the exhaust and carb bolt threads (cuz the factory tap job stank) and disassembled the carb. Lo and behold the main jet was loose and turning in its threads, cleaned it all out, tightened up the main jet, put it all back 2gether and it runs fine again.

I just tested compression on the bike (just bought a guage) and it read 85psi (6 kg/cm2) is that normal for an A3? cant find compression specs listed anywhere in the shop manual.

some1 also posted here about cutting the air box and adding a larger main jet for more power, does this really provide that much of an increase? (is it worthwhile?)

since i have a Dellorto on my A3 and parts are easy 2 get im up2 doin it.

Re: TTLX had a loose main jet......

Crisis--Cincinnati /

Jan 28, 2002 05:24PM

Modifying the airbox, and adding a bigger jet will only work, if your airbox is restrictive.

Re: TTLX had a loose main jet......

Crisis--Cincinnati /

Jan 28, 2002 05:31PM

To check, run the bike without the airbox. If your ped starts running lean, you will know that the airbox is restrictive. Running lean means too much air, and too much air can cause it to bog. Do a plug chop to check though.

Re: TTLX had a loose main jet......

Ron Brown /

Jan 28, 2002 07:31PM

Yeah Chris,

Those are the words I like to hear! : )

Ron

Re: TTLX had a loose main jet......

Crisis--cincinnati /

Jan 28, 2002 08:35PM

I'm learning Ronnie!

Re: TTLX had a loose main jet......

Reeperette /

Jan 29, 2002 03:09AM

>>I just tested compression on the bike (just bought a guage) and it read 85psi (6 kg/cm2) is that normal for an A3? cant find compression specs listed anywhere in the shop manual.<<

Yeah, 85psi is about right, I dunno the exact specs either, save that it's like 9:1 (whatever that means).

>>some1 also posted here about cutting the air box and adding a larger main jet for more power, does this really provide that much of an increase? (is it worthwhile?)

since i have a Dellorto on my A3 and parts are easy 2 get im up2 doin it.<<

I wouldn't bother, it's way too much hassle for what little bit you'd get out of it.

You could get the same result by pulling the stock exhaust baffle.

-R

Re: TTLX had a loose main jet......

Reeperette /

Jan 29, 2002 03:09AM

>>I just tested compression on the bike (just bought a guage) and it read 85psi (6 kg/cm2) is that normal for an A3? cant find compression specs listed anywhere in the shop manual.<<

Yeah, 85psi is about right, I dunno the exact specs either, save that it's like 9:1 (whatever that means).

>>some1 also posted here about cutting the air box and adding a larger main jet for more power, does this really provide that much of an increase? (is it worthwhile?)

since i have a Dellorto on my A3 and parts are easy 2 get im up2 doin it.<<

I wouldn't bother, it's way too much hassle for what little bit you'd get out of it.

You could get the same result but pulling the stock exhaust baffle.

-R

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