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post #1 of 9 (permalink) Old 02-07-2007, 02:36 PM Thread Starter
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dying carb

Riding at 60 mph and above for 5 minutes rear carb cuts out altogether !!

Slow down , pull over and it'll run fine till reaching 60+ and it starts all over again. Help !!

Pugs etc. are fine
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post #2 of 9 (permalink) Old 02-07-2007, 02:47 PM
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If you go wide open throttle when that happens, will the rear carb come back?

Jon

93VN750, under re-construction
vn750.com Member # 828

Rick's Stator and R/R
MF AGM Battery
Coastered
Degoated
Shaved & Jetted
Iridium's
MAC Tapered Staggered Pipes
Battery/Temp/Clock Gauge
Stainless Steel Brake Lines
Dunlop D-404's
23,XXX miles and holding pending gasket change (underway!!!)
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post #3 of 9 (permalink) Old 02-07-2007, 02:54 PM Thread Starter
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yes it does but will only accelerate and not hold at cruising speed
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post #4 of 9 (permalink) Old 02-07-2007, 03:07 PM
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how many miles you got? how did you make sure its the carb, not something like a spark issue? any changes at all before this happened (filling at a different station, sat for a while ect)?

well help get u back up and running in no time flat

'04 Vn750
Currently Installed
nat'l cycle deflector shield
westco 12v30 MF, 30A/h w/ 350 CCA's w/ custom box
TOC stator cover w/ Frankenstator mod!
R/R relo

Soon to have (own or on order)
TOC ACCT's
Mez's 110-FRT 170/80-Rear
Custom rear fender and tail light
Givi hard bags w/ custom rear turn signals


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post #5 of 9 (permalink) Old 02-07-2007, 03:39 PM
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Quote:
Originally Posted by artman View Post
yes it does but will only accelerate and not hold at cruising speed
Sounds like a needle jet problem as this is most of the flow form 1/4 to 3/4 throttle. The fact that you can not cruise but can accerate looks like you have gas flow to the carb, but perhaps are losing the mid range.

Have you ran any seafoam through it recently?

If you have your air box, this is a challenge. If you don't, then just pull your tank and pop open the cover of the rear carb and pull the needle out and see whats up. Check the spring and the diaphragm.

Jon

93VN750, under re-construction
vn750.com Member # 828

Rick's Stator and R/R
MF AGM Battery
Coastered
Degoated
Shaved & Jetted
Iridium's
MAC Tapered Staggered Pipes
Battery/Temp/Clock Gauge
Stainless Steel Brake Lines
Dunlop D-404's
23,XXX miles and holding pending gasket change (underway!!!)
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post #6 of 9 (permalink) Old 02-07-2007, 04:16 PM Thread Starter
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how did you make sure its the carb, not something like a spark issue?

22,985 m

Hizzo, I didn't say the carb was bad, I just said that it cuts out.
No changes of any kind this situation just popped up.

Last edited by artman; 02-07-2007 at 04:19 PM.
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post #7 of 9 (permalink) Old 02-07-2007, 04:18 PM Thread Starter
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Yeah I intend to get rid of that air box as soon as my jet kit and filters come in.
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post #8 of 9 (permalink) Old 02-07-2007, 04:18 PM
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Quote:
Originally Posted by artman View Post
how did you make sure its the carb, not something like a spark issue?

Hizzo, I didn't say the carb was bad, I just said that it cuts out.
No changes of any kind this situation just popped up.
All the more reason I'd say you've got a clogged passage in that carb.

Jon

93VN750, under re-construction
vn750.com Member # 828

Rick's Stator and R/R
MF AGM Battery
Coastered
Degoated
Shaved & Jetted
Iridium's
MAC Tapered Staggered Pipes
Battery/Temp/Clock Gauge
Stainless Steel Brake Lines
Dunlop D-404's
23,XXX miles and holding pending gasket change (underway!!!)
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post #9 of 9 (permalink) Old 02-08-2007, 03:24 PM
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sounds like you are in need of a basic tune up... seafoam (i suggest filling the bowls and let it soak after you run some into the jets too....), plugs, and check on your wires...


let us know if that doesnt resolve it.

'04 Vn750
Currently Installed
nat'l cycle deflector shield
westco 12v30 MF, 30A/h w/ 350 CCA's w/ custom box
TOC stator cover w/ Frankenstator mod!
R/R relo

Soon to have (own or on order)
TOC ACCT's
Mez's 110-FRT 170/80-Rear
Custom rear fender and tail light
Givi hard bags w/ custom rear turn signals


Band Engineer/Webmaster for Josey Contreras Tejano Band
Hizzo3 is offline  
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