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#218920 Rubber Duck (User) Junior Boarder Posts: 193 Bogging down-HELP 2 Years, 9 Months ago   Evvery now and again when I first star up my bike it runs good,I live 1/2 mile from interstate,runs good for the first 2 miles then it starts spitting,sputtering,popping and backfiring to the point where I have to down shift to 4th to maintain a safe speed all the while it is bogged down and backfiring.After about 2 or 3 miles it comes out of it and runs good the rest of the time.The bike is an 07 and all stock except for V&H longshots.The funny thing is I mentioned this to a friend of mine who has an 06 and he was having the same problem.We do not fill up at the same gas station if that would matter.I run 87 octane.   Logged       The administrator has disabled public write access. #218925 WhiteStarNC (User) Expert Boarder Posts: 426 Re:Bogging down-HELP 2 Years, 9 Months ago   My 06 had the same problem. Sounds like it could be sticky valve (SVS) - not the gas. Search the site for information - many, many of us have had this problem - it can be beaten into submission.   Logged       The administrator has disabled public write access. #218928 fireman922 (User) Chrome won't get ya home, but it will get ya laid. Platinum Boarder Posts: 4342 Re:Bogging down-HELP 2 Years, 9 Months ago   My '07 did that just once, then never again. So I doubt it is SVS. It felt more like lack of fuel. I always thought it was the fuel pump not switching on for some reason. I'd run some sea foam in the gas for a tank or two and when it happens, pull over if you can, shut it off and see if you hear the fuel pump run for a longer than normal time when you turn the switch back on. Paul   Logged     Grow Old or Die Trying...   The administrator has disabled public write access. #218936 jim0626 (User) Expert Boarder Posts: 434 Re:Bogging down-HELP 2 Years, 9 Months ago   My 04 did the same thing and I re-jetted useing baron's mikuni kit...Followed the directions and she has been perfect all summer.....Was running to lean. I think svs is a condition caused by carboning up based on improper jetting...To be safe I put 1 oz of Lucas upper cylinder lubricant in every tank.   Logged       The administrator has disabled public write access. #219057 Rayjay (User) Friends make life enjoyable. Platinum Boarder Posts: 1347 Re:Bogging down-HELP 2 Years, 9 Months ago   I would check for a leaky carb joint (intake manifold) or exhaust flange. It sounds like it is heat-related during mid warm-up. SVS winds up with severe vibrations that get worse as SVS increases.   Logged     Ray   The administrator has disabled public write access. #219079 Curt (Moderator) Never to old to ride! Moderator Posts: 12515 Re:Bogging down-HELP 2 Years, 9 Months ago   Yep sure does sound like SVS and bleave me I KNOW SVS.   Logged     My Site Black Ice is Shiny, Black Ice is Deadly, Ya Wanna Ride My BlackIce?   The administrator has disabled public write access. #219189 Scotto (User) Hmmmm Platinum Boarder Posts: 1576 Re:Bogging down-HELP 2 Years, 9 Months ago   Yup Curt knows SVS. Helped resolve mine. Matter of fact mine should be on the Dyno this morning getting the rest of the bugs out.   Logged       The administrator has disabled public write access. #219356 Curt (Moderator) Never to old to ride! Moderator Posts: 12515 Re:Bogging down-HELP 2 Years, 9 Months ago   Scotto glad to hear your going to have the Dyno done that will save you a lot of work and get ya back on the road quick. I just finished adjusting my valves tha last weekend and boy does she run much better. Rubber Duck if you want you can download my documentation on the SVS cure from my site. Just click on the "MY Site" link at the upper right of my sig pic. Scroll down to and click on the "projects" button ten scroll down to the bottom for the SVS cure download. Yell if you have any questions.   Logged     My Site Black Ice is Shiny, Black Ice is Deadly, Ya Wanna Ride My BlackIce?   The administrator has disabled public write access. #219358 bushrjackson (User) she's pretty EH? Gold Boarder Posts: 613 Re:Bogging down-HELP 2 Years, 9 Months ago   Evvery now and again when I first star up my bike it runs good,I live 1/2 mile from interstate,runs good for the first 2 miles then it starts spitting,sputtering,popping and backfiring to the point where I have to down shift to 4th to maintain a safe speed all the while it is bogged down and backfiring.After about 2 or 3 miles it comes out of it and runs good the rest of the time Before the "every now and then" has it been idling for extended periods of time? How long do you keep the choke out? There are allot of questions that could be asked. I doubt that it's SVS. Check the plugs, especially the rear one. Change them both just for snicks. good luck bushr   Logged     2006, 3\\\\\\\" HK rez tec\\\\\\\'s   The administrator has disabled public write access.

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