thought i was finished...carb trouble!!
- dahondaboy
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thought i was finished...carb trouble!!
ok, I ran it to do the heat, coo,l heat, cool, break in procedure. And it was really rich. I leaned it out got it to have good mid and top but it dies off bottom when letting out the clutch. could the pilot need changed too? I didnt think it would be that different after porting and a bore..it was just a mild port job, mostly just de burring and cleaning casting marks nothing radical at all. so my question is: would mild porting and being bored to 2mm over require that much on bottom that i need to re jet the pilot? thanks guys! 2 days to widowmaker!
i dont own assault rifles, i own homeland defense rifles!!!!
- iggys-amsoil
- Posts: 3602
- Joined: June 1st, 2007, 6:09 pm
- Location: Just North of March Airfield CA
First I'd make sure the pilot jet isn't plugged up.
Mild porting? That can be a wide range.
PJ carb.
As an example mine suppose to be mild and most likely is, however I'm two sizes larger on the pilot and really needs the third, from a 55 to 62. The 62 is definately going in for Pismo. Then there is the needle from a CGJ to a EEH, but the main is only one or two depending on if it started at a 168 or 170, currently at 172.
Mild porting? That can be a wide range.
PJ carb.
As an example mine suppose to be mild and most likely is, however I'm two sizes larger on the pilot and really needs the third, from a 55 to 62. The 62 is definately going in for Pismo. Then there is the needle from a CGJ to a EEH, but the main is only one or two depending on if it started at a 168 or 170, currently at 172.
- dahondaboy
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- dahondaboy
- Posts: 320
- Joined: January 16th, 2008, 3:35 pm
- Location: utah
- Contact:
- dahondaboy
- Posts: 320
- Joined: January 16th, 2008, 3:35 pm
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- iggys-amsoil
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- Joined: June 1st, 2007, 6:09 pm
- Location: Just North of March Airfield CA
- dahondaboy
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it isnt. im not stupid.........it was out of whack all around, it had no top end at all until changing the main. now it will not idle and dies when letting out the clucth unless at half throttle. and the top still isnt right it is sputtering and blubbering, all that seems to work right is the mid range.. and yes i mad sure the pilot wasnt plugged. it was at 168 main and wouldnt even hardly run untill i went to 160.
i dont own assault rifles, i own homeland defense rifles!!!!
- iggys-amsoil
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- dahondaboy
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i dont know man,i have no starting poin as it is all out of whack... i am really frustrated i leave for a climb tomorrow and i might have to leave the bike home if it aint gonna run. i could puke i soaked over 600 into it over the winter and now it runs worse than when i tore it apart.
it was running pretty good, now after a bore and piston it will not hardly run. before the bore it had a 168 main, 58 pilot, 1-3/4 turns out, 3rd clip
tried it with those and it only has mid range power (kind of) went to 164 and it was a little better, went 162 and slight improvement. dropped the needle but didnt notice a difference. when i hold the throttle open(full)
it misses blubbers and stalls. and it wont idle even with the adjuster all the way out. i just dont get it, my xr600 went from 598cc to 604 ish with heavy porting and it ran on the same carb. i think the machinist fu**ed up on the bore or something, i couldnt afford to go to glen and now im paying out the ass for it!
![Bash Head :bash:](./images/smilies/wallbash.gif)
it was running pretty good, now after a bore and piston it will not hardly run. before the bore it had a 168 main, 58 pilot, 1-3/4 turns out, 3rd clip
tried it with those and it only has mid range power (kind of) went to 164 and it was a little better, went 162 and slight improvement. dropped the needle but didnt notice a difference. when i hold the throttle open(full)
it misses blubbers and stalls. and it wont idle even with the adjuster all the way out. i just dont get it, my xr600 went from 598cc to 604 ish with heavy porting and it ran on the same carb. i think the machinist fu**ed up on the bore or something, i couldnt afford to go to glen and now im paying out the ass for it!
i dont own assault rifles, i own homeland defense rifles!!!!
- dahondaboy
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- Joined: January 16th, 2008, 3:35 pm
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yes arrow to exhaust, all the good stuff, no crankcase pressure loss. although it does have far less compression than i would expect out of a new top end, at 125 it seems pretty low. the machinist told me it would gain more as it braks in and seals the rings to the wall but i think he is blowing smoke up my ass. i am tring to find a new jug but im on a time limit, i am even tring to borrow my buddys top end just for the race but he says no-go....AlisoBob wrote:EVERY thime I see someone having to resort to "Odd Ball" jetting to make the bike run, something was major SNAFU somewhere else...iggys-amsoil wrote:You'll get it. It just takes some time and testing.
You sure you have the piston facing the right way?
i dont own assault rifles, i own homeland defense rifles!!!!
- dahondaboy
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well i just went out and tinkered with it and its seems worse than last nite, i put the gauge on it and it says 65 lbs. !!!!!! i must have some stuck rings or something bad. well i guess this bike aint gonna go to the hill tomorrow. it was on its last bore anyway so here goes the bidding wars for a newish jug. or maybye a sleeve, how much does labor run on a new sleeve, and do sleeves come ready to hone or do they need a bore first? i have never resleeved anything so any input is aprecciated.
anyone got a top end they can overnite to me?
lol
anyone got a top end they can overnite to me?
![Rolling Eyes :roll:](./images/smilies/icon_rolleyes.gif)
i dont own assault rifles, i own homeland defense rifles!!!!
- dahondaboy
- Posts: 320
- Joined: January 16th, 2008, 3:35 pm
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AlisoBob wrote: EVERY thime I see someone having to resort to "Odd Ball" jetting to make the bike run, something was major SNAFU somewhere else...
You sure you have the piston facing the right way?
dahondaboy wrote:well i just went out and tinkered with it and its seems worse than last nite, i put the gauge on it and it says 65 lbs. !!!!!!
There ya' go....
Sorry to hear of your issues.... next time keep us better informed WHILE your doing it...
![Wink :wink:](./images/smilies/icon_wink.gif)
- dahondaboy
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- dahondaboy
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- dannygraves
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- dahondaboy
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yeah, i saw those jugs thats why i was leaning that direction. 337. for a new jug sounds like sleeving is cheaper. if i can get it done for around 200.00 is that what glen charges or was that someone else, cause after this fiasco i dont wanna trust it to anyone else.
i dont own assault rifles, i own homeland defense rifles!!!!
I wouldn't give up on it yet. I've had faulty readings before.dahondaboy wrote:well i just went out and tinkered with it and its seems worse than last nite, i put the gauge on it and it says 65 lbs. !!!!!! i must have some stuck rings or something bad.
Trying to get a 500 to spin fast enough for a good read is tough.
I would tackle it again another day without any pressure.
Other things to check for.
1. Consistant premix ratio.
2. Reeds, reeds, reeds
3. Lower end vacuum leak.
4. With your air mix screw all the way out you are too rich on the pilot.
5. What needle are you running?
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