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General Category >> Rubber Side Down! >> Making progress!
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Message started by Bobster on 03/02/06 at 19:16:27

Title: Making progress!
Post by Bobster on 03/02/06 at 19:16:27

I bought this 99 savage less than 2 weeks ago. It ran very rough. Barely start and ran rough. I just finished dipping the carb and installed a 155 main jet. Removed the filter box and installed a K&N pod. Replaced the leaking head plug and new spark plug. Adjusted the valves while i was there. Changed oil/filter. It came with a harley muffler. It starts, idles and runs excellent. I can only back out 3 turns on the mixture screw before it stops. I tried the suggested " back out til it idles highest". But she backfires terribly. Im sitting at 2 1/4 turn out now to where it backfires the least. But when i turn it off, it shoots a blue fire about 6-8" long. Any suggestions?

Title: Re: Making progress!
Post by Reelthing on 03/02/06 at 20:52:35

you have a really good seal on the head pipe both at the engine and the muffler - if it's sucking air there it will sure play like a 12 ga

by the way how did you deal with the head breather hose?

Title: Re: Making progress!
Post by Bobster on 03/02/06 at 21:21:01

yea everything is sealed. Pipe is welded. I used a small K&N filter for crankcase breather. Thanks for trying.

Title: Re: Making progress!
Post by AussieSavage on 03/02/06 at 23:36:36

Hi Bobster

Last year my Savage had a similiar problem. It ended up being the O ring that sits in with the needle valve.

My bike would shoot out a blue flame when adjusting the mixture screw as well. You may have a different problem, but worth checking.

Cheers
AussieSavage

Title: Re: Making progress!
Post by Reelthing on 03/03/06 at 06:23:49

Bobster wrote:

yea everything is sealed. Pipe is welded. I used a small K&N filter for crankcase breather. Thanks for trying.

Not trying to beat on this - did you replace the header pipe gasket?

http://suzukisavage.com/cgi-bin/YaBB.pl?board=RubberSideDown;action=display;num=1141208493

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 06:40:13

Reelthing wrote:

Not trying to beat on this - did you replace the header pipe gasket?

http://suzukisavage.com/cgi-bin/YaBB.pl?board=RubberSideDown;action=display;num=1141208493

no, i havent had it apart. It sounds quiet there.

Title: Re: Making progress!
Post by Jim_R on 03/03/06 at 06:40:29

wow built in flamethrower! Sounds like u need to upgrade the pilot jet to a 55 to get more of an adjustment range. As far as the blue flame goes if ur muffler and header are welded then I would check the gasket at the front of the header. Seems u already cleaned the carb.

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 06:46:53

Jim_R wrote:

How will that give me more adjustment? I dont think it effects the 3 turns out mixture screw. BTW, I tried to buy a 55 pilot jet but could only find the main jet. thanks

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 06:48:42

AussieSavage wrote:

I will look into that.

Title: Re: Making progress!
Post by Savage_Rob on 03/03/06 at 06:56:59

Bobster wrote:

BTW, I tried to buy a 55 pilot jet but could only find the main jet.

http://www.carbparts.com/mikuni/mikuni_tuning.htm

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 07:02:49

Savage_Rob wrote:

http://www.carbparts.com/mikuni/mikuni_tuning.htm

does that sound like the problem to you Rob?

Title: Re: Making progress!
Post by Savage_Rob on 03/03/06 at 07:13:13

Bobster wrote:

does that sound like the problem to you Rob?

I was simply replying to your post on not seeing 55 pilot jets. However, after reading the whole thread, it could be a couple of things. Please read the Mid-Range Power & the White Spacer (Backfire) (http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1104205157) thread in the Tech Ref forum. The white spacer mod may help with the backfiring too. Since you've stated your exhaust is welded, I'd only suggest that you check/replace the gasket between the header and the engine. That caused me definite problems very similar to your description. My mixture screw only backed out 2 turns and locked up. I replaced the pilot jet with a 55 and that portion of the tuning was fine (I got lucky). It can't hurt for you to try it and it's inexpensive.

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 07:20:54

Savage_Rob wrote:

Yes i have read the spacer mod. I forgot to say so originally. But i also did the mod with 2 #4 brass washers. Anyway, I just thought i'd ask here. I will be fine.

Title: Re: Making progress!
Post by Savage_Rob on 03/03/06 at 08:11:29

Ahh, okay. But just so far as being able to adjust your idle mixture, you upsize the pilot jet if backing out the screw fully wont get you there. I spent quite a long time trying to tune and retune my carb and finally found the problem to be that the gasket between the cylinder head and header was leaking. There was no soot or anything like that to indicate this but I ordered one since a couple of folks had advised it could be the problem and I figured it was cheap and wouldn't hurt to have a spare anyway. Once I got the new one and compared it to the old one, I could see how much more flattened the old one had become. I replaced it and 99% of my backfiring ceased.

Disclaimer: Please note the Mechanically Inclined Amateur text. I like to do my own work and am not stupid but my wrenching experience is limited compared to a lot of the other folks on this site.

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 09:28:22

Yea i may order an exaust gasket. I just went for a ride. It had a stumble from low-mid rande. I took the screw back in to 1 1/2 turns. It seems much better. Now im going to the highway for a trial run.

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 10:31:27

Took it on I75 and blew it out. Bike runs strong for what it is. Only backfires once in awhile. Im good to go. Thanks for all suggestions.

Title: Re: Making progress!
Post by Reelthing on 03/03/06 at 10:48:38

They do scat pretty good will a little tinkering

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 11:39:23

quick pic http://img224.imageshack.us/img224/2559/10003337im.jpg

Title: Re: Making progress!
Post by Jim_R on 03/03/06 at 12:08:45

wow looking good. Take more pics :) awesome

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 14:03:01

http://img456.imageshack.us/img456/7710/10003362qe.jpg (http://imageshack.us)

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 14:06:22

stable mates..... http://img215.imageshack.us/img215/251/10003373hu.jpg (http://imageshack.us)

Title: Re: Making progress!
Post by Jim_R on 03/03/06 at 14:22:42

Nice pics bob. I wish I had a stable mate. That just didnt sound right did it?

I noticed that ur breather is lower than ur cylinder head.
I did this too and some yummy goo came out of it. I finally read a post and they advise to have it higher so oil won't ooze out of it :)

Title: Re: Making progress!
Post by Savage_Rob on 03/03/06 at 14:33:59

That does look nice. I like the amount of space reclaimed by going to a pod filter. I may have to do that yet.

Title: Re: Making progress!
Post by Bobster on 03/03/06 at 15:37:15

Jim_R wrote:

thats a good call. I pulled the hose and saw some oil also. I will relocate it tomorrow. thx

Title: Re: Making progress!
Post by DaddySauce on 06/23/06 at 07:56:24

Bobster wrote:

thats a good call. I pulled the hose and saw some oil also. I will relocate it tomorrow. thx

Where did you end up re-locating it to? I have the same setup, although I don't have anything coming out of it.... yet.