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post #1 of 21 (permalink) Old 02-03-2009, 12:58 AM Thread Starter
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Need to rejet?

Last fall I purchased an1995 750 with about 23000 miles. The owner had recently installed Vance/Hines pipe and it sounds freakin awesome. The only concern is the incessant popping whenever you let off the throttle.

He did not rejet and the local service dept says it needs larger jets to make up for the pipes, nor did he have the carbs adjusted. Just add pipes and go! The Plugs had a white coating, not gray or brownish. I have noticed a lag of power at the top end even though has great low end torque.

What say all of you? Haven even cracked the carbs open so don't know what the stock jets are to order larger sizes.

Bob......
1995 VN 750
KN Air filters
Vance/Hines Pipes.
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post #2 of 21 (permalink) Old 02-03-2009, 01:13 AM
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Quote:
Originally Posted by basherbob View Post
Last fall I purchased an1995 750 with about 23000 miles. The owner had recently installed Vance/Hines pipe and it sounds freakin awesome. The only concern is the incessant popping whenever you let off the throttle.

He did not rejet and the local service dept says it needs larger jets to make up for the pipes, nor did he have the carbs adjusted. Just add pipes and go! The Plugs had a white coating, not gray or brownish. I have noticed a lag of power at the top end even though has great low end torque.

What say all of you? Haven even cracked the carbs open so don't know what the stock jets are to order larger sizes.

Bob......
1995 VN 750
KN Air filters
Vance/Hines Pipes.
V&H with or without baffles? Stock air filter housings? Where do you live? Stock jets are #132 you should be fine with #135 The popping on deccel is due to the reed valves, you need to coaster or marble.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
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Last edited by lance328; 02-03-2009 at 01:18 AM.
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post #3 of 21 (permalink) Old 02-03-2009, 06:37 AM
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See my post on Marbling Coastering no more popping under carbs, I got rid of all my popping, the exhaust sounds great now.

https://www.vn750.com/forum/showthread.php?t=9499

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post #4 of 21 (permalink) Old 02-03-2009, 08:31 AM
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If the bike runs right, no hesitation or bogging and your plugs look like the correct color, don't mess with it.

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post #5 of 21 (permalink) Old 02-03-2009, 11:34 AM
 
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I always thought the occasional pop sounded cool myself and i am a quiet pipes rider, should see the deer scatter when she pops
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post #6 of 21 (permalink) Old 02-03-2009, 12:09 PM
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re jet

Yes re-jet.....go to Factory Pro they have a complete kit ready to go. By the way is the bike de-goated and the air box removed? If not you'll want to pull them out also then just hold on you'll be flyin'.
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post #7 of 21 (permalink) Old 02-03-2009, 01:36 PM
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Originally Posted by artman View Post
Yes re-jet.....go to Factory Pro they have a complete kit ready to go. By the way is the bike de-goated and the air box removed? If not you'll want to pull them out also then just hold on you'll be flyin'.
The Factory Pro jet kit will have jet's that are too large unless you do an earshave. Just buy seperate jets that will work for about $12.00- $15.00 instead if a kit for $70.00 -$100.00.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
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post #8 of 21 (permalink) Old 02-04-2009, 01:16 AM Thread Starter
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OK I get the Marble... pretty ingenious... Kinda like what I did with the turbo bell hose on my Buick Grand National..
BUT WTF is deg-goating?
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post #9 of 21 (permalink) Old 02-04-2009, 07:04 AM
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Quote:
Originally Posted by basherbob View Post
OK I get the Marble... pretty ingenious... Kinda like what I did with the turbo bell hose on my Buick Grand National..
BUT WTF is deg-goating?
With the V&H exhaust your scoot has been de-goated. The Goat's Belly is a pre-muffler chamber.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
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post #10 of 21 (permalink) Old 02-27-2009, 05:36 PM
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Quote:
Originally Posted by lance328 View Post
V&H with or without baffles? Stock air filter housings? Where do you live? Stock jets are #132 you should be fine with #135 The popping on deccel is due to the reed valves, you need to coaster or marble.
Lance, I seem to notice some higher rpm lack of performance since I added the V&H's. Baffles in, and no other mods to air system except for K&N replacement air filters. I live in central Texas, altitude between 600 and 1400'. Would the 135 be right for my bike? And where would you order them?

Fergy
Kyle, TX VN750.com member #707 VROC#19556
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