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Carbon vac hose routing pods installed

So it will run right dyno jet installed

Posted by Anonymous on

  • Gregg Mahin
    Gregg Mahin Oct 13, 2017

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SOURCE: no low end response and cam (andrews n4) will not

look at new spark plug for colour after running 1/3 thottle

if clean or carbon

i susspect you have spark curve issues (timing) if changed the orginale cam shafts profiles

Posted on Aug 17, 2009

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SOURCE: INSTALLED A DYNO JET KIT AND LOST 1/2 OF MY FUEL

nope you will get about 28 with the tuning you did
mine never got anything better than that and i dyno tuned it more than once

Posted on Feb 16, 2010

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1 Answer

Ls650, S40, BS40 Mikuni carburetor, I want to fit a pod filter, but bike runs all funny ,even if i take side cover off the airbox?


If you fit a pod filter, or take the lid off the air box, you are allowing more air into the engine. Therefore, you must also allow more fuel to mix with the air. To do this, you must increase the jet size in the carburator. I recommend Dyno Jet brand jet kits. They will have all the parts necessary as well as tuning guidelines to follow.

Jul 30, 2013 | 1982 Suzuki GSX 400 FS impulse

1 Answer

Pool cleaner will vaccuum but no movement in pool. plenty of water pressure going thru back hose


Before doing anything, take the Jet Vac out of the pool and set it on the deck. Stand clear and turn it on. It should have enough water going through the blue jet to spray several feet and propel the jet vac on dry land.

What propels the Jet Vac is not the water going through the hose, but the water going through the little blue Jet under the Hose. You can unscrew this from the bottom of the shell and clean out any obstructions. Also, check the screen at the connection where the hose meets the wall. It is located in the white valve with the red button on it right at the pool wall. It will unscrew from the wall of the pool with the system off. Also make sure the booster pump is coming on.

Also, it may be stuck in reverse or neutral. If this is the case there will be jets of water shooting forward of the jet vac when it is on dry land.

Apr 15, 2011 | Pentair Jet Vac Venturi Shell Blue Jv2c

1 Answer

Check engine light. Code: Exhaust gas


Usually this is due to carbon build up. Fuel injector cleaners will not help. It involves removal of the EGR valve and inspection of the valve for carbon and the passages for carbon. You can also test the valve itself prior to removal if it is vaccuum operated. Unplug the vac hose, plug it and then install a piece of vac hose long enough to reach it without bending over the engine. While the engine is idleing apply vaccuum to the hose via a pump or the old fashioned way via sucking on it and note engine idle change. If none either the baffle is bad inside the valve or it is clogged. Hope this helps.
Also, some EGR valves have a vac control solenoid and those go bad too. If the idle does change via the procedure above then suspect the control vac solenoid.

Jul 15, 2010 | 2000 Honda Passport

1 Answer

Changed from standard air box air cleaner to pod


Going to the manufactures specs or anybody's specs for that matter won't help you, you have interrupted the air flow, Get an adj jet from Dyna flow, I did the same thing, went back to the oem specs and still wouldn't run. Got a Dyna flow kit and off it went. Those things are expensive but worth it. Plus they are adj. And you get a free dyno check if you ever find somebody with a dyno tester. My Mikunis were a little newer, but I'm sure they got something. I found mine on Ebay. Hope this helps.

Apr 16, 2010 | 1983 Suzuki GSX 1100 E

1 Answer

INSTALLED A DYNO JET KIT AND LOST 1/2 OF MY FUEL


nope you will get about 28 with the tuning you did
mine never got anything better than that and i dyno tuned it more than once

Feb 16, 2010 | 2007 Yamaha Road Star

1 Answer

2006 Yamaha Roadstar Silverado, Installed Roadburner Street Pro exhaust system and Dyno-jet stage one kit,now the rear cylinder keeps fouling out! Any suggestions??


Sounds like jetting is to rich, recheck settings and fuel height settings, need to get the fuel mixture correct as that bike will develop other running issues due to carbon build up in the rear cylinder. check out www.roadstarclinic.com as this is a good source for information on this bike

Feb 04, 2010 | 2006 Yamaha Road Star Silverado

1 Answer

Changed the pipe to a 4 to 1 and added pod filters now bike runs out of gas at hard acceleration..what jets should i use and will a hi flow gas valve solve this


you dont need more gas through the valve. unless all out racing, that shouldn't be a problem. you definately need rejetting. the proper jet size can only be determined by trial and era. you need a dyno to tune properly. but of the head I would say start with 10 sizes over what you had. say if they were #120's, go with #130's. this should get you in the right direction.

Oct 20, 2009 | 1989 Suzuki GSX-R 750 K

1 Answer

No low end response and cam (andrews n4) will not kick in until 4000rpm. Cv carb with dyno jet kit installed. Slow jet is 42, 170main and eclip is on 3rd groove.


look at new spark plug for colour after running 1/3 thottle

if clean or carbon

i susspect you have spark curve issues (timing) if changed the orginale cam shafts profiles

Aug 17, 2009 | Harley Davidson XL Sportster 883...

1 Answer

Rf has race can K&N and dyno jet fitted when i got it, but terrible flat spots all over the place. can you give me a clue what size of main jet to use


No one can tell you what jet size to use unless they know exactly what exhaust and jets you have now. The best thing for you to do is go back to a known good configuration. If it has never run right since you had it, go back to stock (make sure it runs right with stock settings now!) and start your adjustments from there. Change one thing at a time and do performance testing between each change. Dyno runs are best, but timed runs might work too, depending on your application.

Jun 30, 2009 | 1994 Suzuki RF 600 R

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