Exhaust
 

the connection between the left hand exhaust pipe and where a clamp binds it has rotted and cracked finally..

must have happenned on my last long haul.

It rides OK.. until i hit full throttle at around 90-100 kms and hour then it revs excessively and wont put out any power..

Does that make sense... A Crack in the pipe affecting high end performance when the throttle is fully opened

or ?

It cant be the clutch adjustment..everything has been fine for week now and this has never happened.. now when i look down on a cold day i can see air jetting out near the kickstand .

Re: Exhaust
 

just checked valves... nothing out of ordinary
exhaust is between a .03 and .04
the intake is at .02

Drained the Carburator... and either there was water in the emptying hose or its in the gas itself?
because there were droplets in the gas when i emptied it into a clear glass bowl (dried before the carb was emptied)

either way.. fill the carb fuel hose with carb medic to fill the carb itself.
added gas..


starts fine.. mid range is normal

but when i get up to a hill at 80-100 kms it seems to over rev out of my control. Very unlike the GZ.

recent oil change.. recent air filter. reversed the needle shim mod i had done. and shes 16 toothed.



any ideas

Re: Exhaust
 

When you let off the throttle does the revving stop and the bike act normal? If your answer is yes, than your clutch is slipping,and no amount of adjustment is going to fix it.You will need a new clutch.Unless I'm missing something in your post.Your exhaust leak would not make the bike act that way.
O_o :cool:

Re: Exhaust
 

Well hopefully not! but if so .. ill keep an eye on it.

I just got back from a highway ride... Seemed better after i emptied the carb and all of the previously mentioned..
A muffler place quote me about 100 bucks to weld a new pipe for the exhaust. either way it needs to be done. and if the clutch clips again and again ill get a new one put in.

Until then thanks for the reply and ill re post once the weld is complete

Re: Exhaust
 

would a break in the pipes cause back fire ??

Re: Exhaust
 

Yes, a break in the pipe will cause the bike to back fire,especially when decelerating. Good luck!
:rawk: :cool:

Re: Exhaust
 

Sure sign of a clutch problem.
There is no real "clutch adjustment" except for the slack in the cable.
Unless you have been using the wrong kind of oil, you are certainly looking at clutch repair.

Re: Exhaust
 

"Yes, a break in the pipe will cause the bike to back fire,especially when decelerating. Good luck!"



yeah especially on deceleration is when it happens now.

So what do you guys think... considering the cost of a new exhaust etc...100 bucks to fix the left hand pipe connection as a permanantly sealed weld VS clamped joint.
Good idea?

then see how things go with the clutch in the next week ? and go from there.

Re: Exhaust
 

I would say it's a good move.If the rust has penetrated into the joint any amount and you have to replace the right hand side,it gets real expensive as pipe and muffler are one unit.
:whistle: :)

Re: Exhaust
 

You noted a recent oil change. As Easy was the first to ask I'll be the 2nd. What was the oil you used ?? This is the only thing offhand that would cause clutch slippage if all else remains the same. Maybe time for recheck that clutch adjustment also.