20 bucks to whoever figures out hwats wrong with my 01 gs

[jeff721]

I know it sounds really dumb, but did you check the spark pug itself to make sure it was the right one? At the shop I used to work at I had 2-3 of my mechanics work 8+ hours on a bike that had the wrong plug. Your's should (both) be DPR8EA-9 by NGK don't run anything else in your bike.

If that isn't the problem my next guess would be not getting fuel as in excess vacuum in the tank preventing it from getting to the carbs. You may also have blockage in your line and or tank.

Hope that helps.
Jeff

[importracer689]

I know it sounds really dumb, but did you check the spark pug itself to make sure it was the right one? At the shop I used to work at I had 2-3 of my mechanics work 8+ hours on a bike that had the wrong plug. Your's should (both) be DPR8EA-9 by NGK don't run anything else in your bike.

If that isn't the problem my next guess would be not getting fuel as in excess vacuum in the tank preventing it from getting to the carbs. You may also have blockage in your line and or tank.

Hope that helps.
Jeff

hey man
im actually running dpr7ea-9 which is just a step colder, but doesnt seem to make any difference at al in how it runs, i put them in place of the dpr8's in order to maybe fix it before i really got into it.
the fuel is not the problem (i thought it was for the longest time), but i am actually losing spark from the coil on the right, only when the bike gets hot. after like 15 or so miles it will bam..lose spark on the right side which i thought was the coil heating up and breaking down, but it isnt, so im back to WTF? lol
thanks man

[jeff721]

seriously, switch back to the dpr8ea-9 and see if it fixes your problem $6 for 2 plugs...would be a cheap fix, and definatly worth a try

[onefastgs500]

import check the wires coming from the ignition pickups we have had one break before causing same problem the fabric casing was ok but wire broke inside carefully split casing w/ razor blade or use a fingernail to feel for broke wire .call me if needed ,Lee

[The Buddha]

You need to answer me and use decent grammar and punctuation.
The plugs you are using 1 step hotter not colder.
The ignition coils are not heat items though they do get some heat and they tend to hold it in due to epoxy (high end coils are oil filled) but our bikes dont need that.
Heat related = crank trigger. No question.
Cool.
Srinath.

[onefastgs500]

srinath,i changed pickup coils and brain (both known good off my racebike)put the right plugs in it (new) checked all the wiring (no damage or loose connections)seems to be running fine-switched back to his original; stuff and it still seems to be running fine -has good compression-fuel in both carbs can't really find anything wrong w/ it ,mark says it drops a cylinder once hot but i rode it without a problem don't have a clue

[The Buddha]

OK maybe it was a bad connection or maybe a bad auxillary ground.
Is it still doing that ... You should do 1 at a time. Prolly crank trigger first ... try it. Then black box.
Cool.
Srinath.

[importracer689]

OK maybe it was a bad connection or maybe a bad auxillary ground.
Is it still doing that ... You should do 1 at a time. Prolly crank trigger first ... try it. Then black box.
Cool.
Srinath.

alright man,
before i took it to lee, i checked the auxillary ground, the connections to the cdi box, the connections to the crank trigger, and the coil wire connections as well as the resistance across the coil wires themselves.
lee happened to have extra parts laying around so i bought them from him (Cheaply might i add. thanks man) and we went ahead and put both the crank trigger and the cdi box on. it has given me no trouble yet, but i have not ridden it for long yet. i wil ltake it out between classes tomorrow for about an hour and see how it does, then post back.
If this fixes it, which it should, I intend to put my old cdi box back on it in order to isolate the problem so i know which part was bad and which is good.
thanks guys,
mark

[The Buddha]

OK yea 1 at a time, lucky you only have 2 components ... Let me know.
Cool.
Srinath.

[rangerbrown]

you sure the cams are turning? any chance the cam chain busted? or jumped a few tooth

[sledge]

Ranger?
Follow the thread, the bike starts and runs initially before one cylinder cuts out. This rules out any cam/camchain/timing issues. I agree with Sesh` in that the problem is related to the electrical system, something is breaking down or going open-circuit when it warms up, either through use or by engine heat. I read about something similar once, the guy solved it by taking off all the ignition components off the bike, taking and recording resistance figures across the coil, CDI and triggers. Then warming them slightly in a oven, testing again and comparing figures........The CDI box proved to be faulty but only when warm.

[importracer689]

alright guys, its fixed, but at this point im not sure if it was the cdi box or the crank triggers, but whenever i get a chance ill post up which one of the two components it was
i rode it out for 50 miles and back and no problems
thanks guys,
mark