[giorgio]

My motorcycle (1995 GXSR 750) quit starting every month or so due to oil and fuel built up on the spark plugs. I have to clean them up real good and the bike will then fire up. I also noticed black smoke when the bike starts and flame at times but all this will disappear after the bike warms up.
Do I have a leak somewhere in the carburator? I was told I had clogged jets. What are "jets" and how do I solve the problem?

Thank you for your time and consideration.

Giorgio

 

[ElBandito]

Start with the obvious and change the air filter (if you didn't change that already)
then ad some fuel additive to clean the carbs.
still no good ?
run the carbs without filter and put your hand on carb throat #1 whack the throttle a few times.
repeat for the other carbs.
idea is to suck debri through the jets violently.
jets are calibrated screws with(tiny) holes that regulate fuel and air flow inside the carb, they can clog up with debri.

BTW you didn't change to colder sparkplugs did you ?

 

[NickGS500E]

It sounds like it's running really rich, have you tried adjusting the mixture screws?

 

[giorgio]

Thank You Elbandito.
Well, I Do Not Know Much About Bike Repair But I Will Do My Best. I Checked My Air Filter And It Had Lots Of Oil On It. I Will Get A New One. As For The Carb Throat, I Did Not Have Time For That Task, But I Will Do. I Have No Idea What Spark Plugs I Have On My Bike (cold Vs Hot).
So, Are The Carb/jets Causing The Sparkplugs Foul Problem? Because I Did Clean The Spark Plugs And The Bike Did Not Start. I Remove Again At Least One Spark Plug And Noticed That There Was Gas On It, Therefore Preventing The Bike From Firing Up.
Please Let Me Know Once You Get The Chance. In Meantime I Will Follow Your Advice And Work On It.
Merci Beaucoup Elbandidto

 

[giorgio]

No I Have Not And I Do Noy Know How To Begin With. Where R They Located At?

Thanks For Your Time And Viva Australia

 

[87gsxrnut]

You are in over your head bro.

1. Is that a STOCK air filter? Or is it maybe a K&N that is SUPPOSED to have oil on it?

2. If the filter is stock AND has oil in it, you had better find out why. I'd lay 10 to 1 you have excessive crankcase pressure if a stock filter has oil on it.

3. Buy a new set of plugs and install them. Don't f**k around with old plugs. That won't help you diagnose the problem. Trust me here.

4. If you are not skilled in checking the jetting, either get a manual for the bike and LEARN IT, or take it to someone who IS skilled at checking it out. Carbs are a pain in the *** for us who know what we're doing, let alone those who have never attempted removing and cleaning them and getting the job done RIGHT.

5. How charged up is your battery anyway?

- Nut

P.S. Maybe it is electrical. One coil, or both, or maybe the CDI box . . . .

 

[TsPerformance]

Did That Solve Your Problem.. By The Way, Why Do You Type Like This?

 

[giorgio]

OK Chief Elbandito

I'd better take it to a mechanic.
The battery is well charged.

Thanks a bunch

 

[giorgio]

My solution is taking my bike to the mechanic. I did not type the message; my girlfriend did

Have a great groovy one!