Rich bog in higher rpm's input please!

[Sask900]

So I just redid the top end in my sled, checked everything, new fuel filter, redid primary, reeds are good, throttle body boots are good. Broke it in this weekend with a good mix of oil, took it out and ran great at low to half throttle. When I went to punch it past half throttle I get a bog, sounds like a really rich bog, seems like if I go through the rpm's slow and then WOT and it pulls like the tractor it always was . Checked the TPS tonight, 0.93 at idle, 4.02 at WOT. I have an slp pipe and flash, could that be causing a rich spot in the rpm band?

Thanks in advance guys
Brennan

 

[guidoxpress]

Did u check the exhaust valve bellows for holes?

 

[ttreewalkerr]

So I just redid the top end in my sled, checked everything, new fuel filter, redid primary, reeds are good, throttle body boots are good. Broke it in this weekend with a good mix of oil, took it out and ran great at low to half throttle. When I went to punch it past half throttle I get a bog, sounds like a really rich bog, seems like if I go through the rpm's slow and then WOT and it pulls like the tractor it always was . Checked the TPS tonight, 0.93 at idle, 4.02 at WOT. I have an slp pipe and flash, could that be causing a rich spot in the rpm band?

Thanks in advance guys
Brennan

Nota check at WOT,,, what is it at with throttle plates closed ?

 

[SaskRMK]

.93 closed
Fresh top end because sled had 3500 miles on original pistons and cylinders
Sled has never burnt down
just cleaned valves and bellows were undamaged and new springs were installed

 

[Sask900]

I was getting a bit of this last season on the old motor but never as frequent, is the TPS supposed to be putting out 0.93v at idle or plates closed (no throttle)

 

[SaskRMK]

Ttt

 

[Danbot]

I was getting a bit of this last season on the old motor but never as frequent, is the TPS supposed to be putting out 0.93v at idle or plates closed (no throttle)

.93 to .97 (depending on your elevation) at idle, but if you haven't sync'd and baselined it's a crap shoot

 

[sno_mo_racer]

/\/\/\/\/\. What he said.


There is stickies at the top in the how to find the thread about setting the tps. Near the end of thread there is a link of a vid how to set tps.

 

[SaskRMK]

None of the snowest links are working but this link is
http://www.snowmobilefanatics.com/forum/topic/90912-fusion-owners/page43

 

[faulk222]

None of the snowest links are working but this link is
http://www.snowmobilefanatics.com/forum/topic/90912-fusion-owners/page43

the links will work if you add online after snowest when it comes up link broken

EX http://www.snowest.com/forum/showthread.php?t=112042

is http://www.snowestonline.com/forum/showthread.php?t=112042

 

[Newfusion900]

Use the "how to" links in the stickies. Those links work.

 

[SaskRMK]

If the tps is set correctly would you guys lean towards a rich spot in the slp fuel map because the sled is being operaed at low elevations?

 

[TriumphoverU]

Sounds Like you may have a bad TPS harness, which is getting worse the more run time the sled gets on it.

 

[Sask900]

I am thinking something similar, I am going to look over it closer tonight

 

[dodgecountry69]

any luck? mine is acting up also