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HELP the pipes are translucient red

  • Thread starter Thread starter anthonygs1000
  • Start date Start date
A

anthonygs1000

Guest
I took the drag bike out tonight the temperature was 57deg and my pipes are glowing red the tips of my spark plugs were ash white I am running 38mm flat slides the main jets are 145s from 140s two weeks ago also installed a set of 80mm long velocity stacks does this ting sound lean
 
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I'll hazard a guess; you are lean.

My street bike is running 147.5's and gets 35 mpg
 
WAYYYYYYYYYYYY lean...If you're running 38's, youre drawing more air, couple that with V-stacks, you need more fuel, bigger jets. I'd venture to guess up in the 150 range...
 
its a gs1000 bored out with mtc's 13.5.1 with a street port job and yoshi cams seven inch slick 13/42 gearing 37deg timing

ant
 
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I have three more blocks two more heads three welded cranks ect ect. anyways I talked to a big tune up guy and he told me to go to 150's and get 110 octane with lead to get a proper plug reading or weld a bung in the exhaust for a o2 censer and get a small OBD-2 to dial it right it in. We looked through a scope or a loop and there was no aluminum in the plug so no damage done yet . it ran great last friday until it dropped in to 40s then boy was it lean the track was real slick
spinning well into second gear with a 1.48 sixty foot and still ran 6.70 at 102mph in the 1/8
 
I sorta feel your pain. And your bike doesn't even have to be a drag bike to have those problems.

This is my son's '81 850 (totally stock) right after we got it:
IMG_3824.jpg


.
 
145 to 155

145 to 155

I swapped jets from 145 to 155 the pipes were not red and a ton more power
until I smoked my second clutch this summer I got a lockup from Paul Gast
but I need a spacer plate for a gs1000 I have to go and have one made we will see what a new clutch will do

ant
 
I love NY

I love NY

the last three weeks rain rain rain now the racing season is over. time to work on the snowmobiles
 
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