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rstar1300 · 09-23-2008, 09:48 AM

last year I had bad vacuum leaks at the base of all carbs. I installed ALL new manifolds which helped alot, but I still can stall the engine by carefully spraying choke cleaner at the base of the carbs.what else can I do to get rid of the leaks? Any suggestions appreciated. Has anyone heard of this before -venture or v max owners???

rstar1300 Tom

Kenneth_Moore · 09-23-2008, 10:02 AM

Pull the heads and have the intake manifold mating surface planed.

mscuddy · 10-03-2008, 07:02 PM

Get some JC Whitney Spray-O-Seal in a can. Spray everything but the seat and you should be OK. Hell, spray the seat too in case it starts leaking, be safe. Be sure. Be happy.

The_AirHawk · 10-03-2008, 11:35 PM

If this bike uses the rubber insulator boots - you have obviously not seated something properly.

How new were the "new" boots you installed?

Are the metal bands tightening around the carb and intake-throat properly? Some have a particular place for the band (and for that matter the insulator too) or they won't seal.

One last thing - is it possible they've been tightened TOO much and you're distorting the carb or intake a bit, causing a bad seal?

If the carb bolts-up directly, could be like Whirlpool sez: the mating-flange is distorted on the intake or the carb, or both.

Hard to diagnose these things long-distance.

Good Luck.

Roccker · 03-04-2009, 05:17 AM

It sounds that there must some be problem in float seating.Also there is a change of fuel line or vacuum leaking.See the fuel tap or switch it to PRI to find where it is liking from.Can do the dressing.
If things does not go well dont delay to contact a mechanic.
Good luck.

SmokeU · 03-04-2009, 06:01 AM

Sounds like the problem is a Royal Biotch.

09-23-2008, 09:48 AM	#1
rstar1300 Registered Member Join Date: Sep 2008 Posts: 1	yamaha royal star intake leaks last year I had bad vacuum leaks at the base of all carbs. I installed ALL new manifolds which helped alot, but I still can stall the engine by carefully spraying choke cleaner at the base of the carbs.what else can I do to get rid of the leaks? Any suggestions appreciated. Has anyone heard of this before -venture or v max owners??? rstar1300 Tom

09-23-2008, 10:02 AM	#2
Kenneth_Moore Registered Member Join Date: Jun 2007 Location: VIsiting the GIft Shop in the Pit of DIspair Posts: 7,118	Pull the heads and have the intake manifold mating surface planed. __________________ www.kennethmoore.org

10-03-2008, 07:02 PM	#3
mscuddy MODERATOR X Join Date: Jun 2007 Location: Next to my still checkin the temp. Posts: 5,444	Get some JC Whitney Spray-O-Seal in a can. Spray everything but the seat and you should be OK. Hell, spray the seat too in case it starts leaking, be safe. Be sure. Be happy. __________________ A gun is a tool, Marian; no better or no worse than any other tool: an axe, a shovel or anything. A gun is as good or as bad as the man using it. Remember that.

10-03-2008, 11:35 PM	#4
The_AirHawk Founding Member Join Date: Jun 2007 Location: Livin' in a Van: down by the Mariana Trench Posts: 10,891	If this bike uses the rubber insulator boots - you have obviously not seated something properly. How new were the "new" boots you installed? Are the metal bands tightening around the carb and intake-throat properly? Some have a particular place for the band (and for that matter the insulator too) or they won't seal. One last thing - is it possible they've been tightened TOO much and you're distorting the carb or intake a bit, causing a bad seal? If the carb bolts-up directly, could be like Whirlpool sez: the mating-flange is distorted on the intake or the carb, or both. Hard to diagnose these things long-distance. Good Luck. __________________ *Parfois, on fait pas semblant* Sometimes, it's not pretend Oderint Dum Metuant Let them hate so long as they fear политики предпочитают безоружных крестьян Politicians Prefer Unarmed Peasants Nothing to see here, Citizen. Move along now... Last edited by The_AirHawk : 10-03-2008 at 11:38 PM.

03-04-2009, 05:17 AM	#5
Roccker Registered Member Join Date: Feb 2009 Posts: 4	It sounds that there must some be problem in float seating.Also there is a change of fuel line or vacuum leaking.See the fuel tap or switch it to PRI to find where it is liking from.Can do the dressing. If things does not go well dont delay to contact a mechanic. Good luck. __________________ Honda Pocket Bikes Last edited by Roccker : 03-04-2009 at 05:19 AM.

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03-04-2009, 06:01 AM	#6
SmokeU Premium Member Join Date: Jun 2007 Location: pet**...pet...pet** Posts: 1,865	Sounds like the problem is a Royal Biotch.