Adjusting the throttle and oil cables. Too many variables

[akmclean]

I just rebuilt the top end on my sled and I've hit a sort of snag with adjusting the oil and throttle cables.

The shop manual says that if you adjust the throttle cable you need to reset the TPS and sync the oil cable too. It also says you need to adjust the oil cable every time you adjust the idle, which is kind of crazy, but not my point.

The manual also says to adjust the throttle cable so the cut in the slide is 1mm below the venturi bore. The problem is this leaves more slack in the flipper than I like.

My question is would making the throttle tighter so the slide comes up past the bore cause any trouble?

And when adjusting the oil cable you are supposed to put the cable in this spacer tool and pull the housing with 7.6 ft lbs of pressure. How am I supposed to judge what 7.6 ft lbs is? Is the oil pump supposed to engage and the exact same time as the carb slides.

Also is it really necessary to reset the TPS in this situation?

Thanks

 

[akmclean]

I forgot to add its and 07 800R rev.

And what is the oil usage ratio supposed to be?

 

[800 XXX]

I forgot to add its and 07 800R rev.

And what is the oil usage ratio supposed to be?

40:1 is a pretty good & safe ratio... Took me four rides adjusting a little at a time to get there from factory setting of 20:1.

 

[pyxle]

Step 1: Adjust idle speed
Step 2: Adjust throttle freeplay to 1/8" at the throttle lever
Step 3: Adjust oil cable distance (15-16.5mm), larger gap=less oil, with the slack taken out of the throttle
Step 4: Don't worry about re-setting tps unless you replace the tps or carbs.

 

[akmclean]

Thanks guys.

And I'm going to sound like a doofus, but what are the units for the ratio? 40 gallons of gas to 1 gallon of oil?

 

[farmboy84]

as long as you are using the same units gallons to gallons, or ounces to ounces you are good to go. i always use ounces, since it is more accurate with a smaller unit measurement.

 

[rockymking]

Step 1: Adjust idle speed
Step 2: Adjust throttle freeplay to 1/8" at the throttle lever
Step 3: Adjust oil cable distance (15-16.5mm), larger gap=less oil, with the slack taken out of the throttle
Step 4: Don't worry about re-setting tps unless you replace the tps or carbs.

In a nutshell ... good post Mark Reps to you for helping akmclean out.

 

[akmclean]

Hey rockymking, I was searching the forum for the answer and ran accross a thread where you said you adjusted your oil cable spacing to 18mm to give it more oil and try and prolong your 800R's life. Giving it more space would lean out the oil though, which would not help keep the 800R alive if im correct. Maybe you made a typo?

Thanks everyone.

 

[cjgodden]

I was searching the forum for the answer and ran accross a thread where you said you adjusted your oil cable spacing to 18mm to give it more oil and try and prolong your 800R's life. Giving it more space would lean out the oil though, which would not help keep the 800R alive if im correct. Maybe you made a typo?

must be a typo, the smaller the number the more oil. 16.5mm will use more oil than 18mm. If you run synthetic oil you can run it at 18mm. The best way to adjust is measure your usage and adjust accordingly, variences in the way people adjust and manufacturing of the cable can make the setting vary.

 

[rockymking]

Hey rockymking, I was searching the forum for the answer and ran accross a thread where you said you adjusted your oil cable spacing to 18mm to give it more oil and try and prolong your 800R's life. Giving it more space would lean out the oil though, which would not help keep the 800R alive if im correct. Maybe you made a typo?

Thanks everyone.

You are exactly right ... 18mm is leaner on the mix than 16.5mm is. After the dealer did the "oil volume crank band-aid update" mine was at 14mm??? The sled was chugging oil like sailors drinking at low tide! I am currently at 17-18mm on the cable adjustment using XPS synthetic and the ratio is +/- 42:1 ... seems to be working fine; original 800R with 2700 miles.

I looked all over for that thread to see if I typo'ed it or not but couldn't find it? Regardless, you got the oil rationing system down pat.