so i guess im the only one that likes to scare sports bikes on my savage, these big singles fly if you want them to.
ive got the 4 speed gearbox in mine, its a 1990

pyke13 wrote on 06/13/16 at 03:40:30:


No.....several of us can be scary at times.  We just don't need to run at 6,000 rpm to do it!  

I ran mine hard, but once it's not accelerating hard, it's time to grab a gear.

its not over reving, when i got it in stock trim it would slow down as it ran out of revs in each gear. now its back firing at at 65 in 4th, thats no place near over reving or valve float. if it wasnt back/mis firing then yes it could be a case of over reving. im only trying to get the same sort of performance out of it i got before i removed the airbox
modified the ait filter and that has 90% cured the problem. seems to have been the rubber blocking the air flow to the diaphragm. just cut the centre out of the rubber and glued it to the metal end of the cone, even opened up the inlet side of the cone just to make sure it wasnt blocking air flow.

Clean up the cavity the plug sits in before removing the spark plug.

I would remove the air cleaner and rubber tube completely and go for a ride before I did anything..
I'm not Just wondering about how the hose/ tube fits your carb face, but I wonder if it is messing with the jetting. If this is not something that you find the answer to soon, it might be necessary to go back, install the old setup, and see if it goes back to running right.

Too many times I have done something that caused
Unforeseen consequences, and only by going back and undoing it all could I find out.

Pyke,

Don't feel bad, you are not the only biker to miss that when installing a new air filter.

It is always good to hear of a problem sorted out.

Kenny G

You said it yourself!  "I'm only trying to get back the same performance I had before I put on the cone filter" duh! reverse is also a gear!AS JOG said if something you did doesn't work you need to go back and undo it.I ran into this myself I had my bike running nice with a Harley pipe and decided to try drilling a 3/8 hole in the baffle it ran horribly ,I could have tried rejetting but that wouldn't make the thing much faster so I changed it back. If your looking for speed then you have to invest in larger piston ,cam ,exhaust,etc. so you have to ask yourself is $2000 worth of parts and labor worth it to go ten miles an hour faster?For me the answer was no, it was more important that it run smoothly and reliably.