Above 30 mph bogging in colder temp By seanstr (Read 9,001 times)

[seanstr]

Nov 17, 2016 16:43:22 GMT -6 rks said:

I hate to be the one to say this...but you ordered the wrong belt. check this link, it and several other sites, state that the 799x19x28, is the belt for the 125cc, Lance, Cali Classic. It only takes a few minutes of searching, to come up with the correct parts for any scooter.

Gates Belt

So it wasn't the 835, so I found one that is 818 x 19 x 28. It seems not loose but I haven't checked the travel up the variator yet.



Do one change and check results.

[seanstr]

Dec 9, 2016 7:37:25 GMT -6 seanstr said:

Nov 17, 2016 16:43:22 GMT -6 rks said:

I hate to be the one to say this...but you ordered the wrong belt. check this link, it and several other sites, state that the 799x19x28, is the belt for the 125cc, Lance, Cali Classic. It only takes a few minutes of searching, to come up with the correct parts for any scooter.

Gates Belt

So it wasn't the 835, so I found one that is 818 x 19 x 28. It seems not loose but I haven't checked the travel up the variator yet.

I did open up the 818 still too short. The 835 is back in. Now that I understand there carb tuning I think that was making everything off.

So air fuel mixture mostly does all generally, idle screw, idle only, the needle is for after take off to mid range and jet is mid range to WOT. That wasn't obvious to me. It is now. I'm set for the cold weather. When it warms up I'll slowly move the needle clip back down to lean it out as the temperature warms and the air gets thinner. I'll re-jet as it gets warmer too because of the same reasoning, air thinning as at Warner temperatures. I'll also need to adjust air fuel mixture too.

I wonder if someone has figured out at what temperatures the adjustments are needed?

So, for 100° and above, 90 to 80 and do on down to negative 30° Fahrenheit.



Do one change and check results.

[seanstr]

I am currently still driving the lance in to work as long as it's above freezing, LOL. 2 Friday's ago was very, very scary.

Got 64mpg last fill up. Not bad for the temps.

Do one change and check results.

[seanstr]

OK, so I got the bogging gone. But still not going post 45mph. I am running a #110 or #108. It isn't marked. Lol, so I last tried #115. So same results. Went back to what came with carb. Should I increase the weight. Go even higher. I'm at 13 gram sliders. Maybe try 14 gram rollers? See if it gets a bit higher in mph?

What do you all think?

Do one change and check results.

[seanstr]

Does no one have any ideas? Where's Alleyoop

Do one change and check results.

[jct842]

Only person I know that might have any idea about alley oop would be JR.

I an too damn lazy to go back and read thru this god awful long thread....so....45mph at how many rpms?
And is the belt at the top of the variator ? Depending on your weight you may have a hp problem.


If the rpms are low, they need to be at least 7500 rpms when wound out. The only way possible to raise the rpms at wide open is to lessen the load on your engine, how ever you choose to do that.

[seanstr]

Jan 4, 2017 20:32:14 GMT -6 jct842 said:

Only person I know that might have any idea about alley oop would be JR.

I an too damn lazy to go back and read thru this god awful long thread....so....45mph at how many rpms?
And is the belt at the top of the variator ? Depending on your weight you may have a hp problem.


If the rpms are low, they need to be at least 7500 rpms when wound out. The only way possible to raise the rpms at wide open is to lessen the load on your engine, how ever you choose to do that.

I have the belt riding all the way out on the variator. The RPM's are 7500. I'm going to go heavier. If it moves the speedometer up 5mph. I'll call that a win. I'm trying it tomorrow.

[seanstr]

Fun fact: these are fake Dr pulley sliders. Measured at 12.86 for the set of 13 gram sliders.

Using the tuning kit from Prima. Those are exactly 13 and 15 so 3 of each gets 14 grams measured.

So, got into it. I'll try it at 14 gram rollers.

The clutch pulley, I decided to remove the needle bearing to clean it and the outer bearing. Well, I ruined the needle bearing. I have be coming. I cleaned the outer bearing extremely well then repacked the outer bearing. Now, once I get that all repaired I have to find where my gear oil is leaking. I bumped it coming home one day. But pretty hard. I am afraid I might have to open it all up and replace the gasket. That won't be fun.

Maybe it's just a bolt. But I doubt it.

OK, update, the gear oil fill screw fell out. Lol. Fixed. Waiting on the needle bearing.

It's be fine if it got a bit warmer.

Do one change and check results.

[jct842]

I doubt if any thing you do from this point on will get you any more speed unless you give the engine more hp'.

If you had just a bit more hp your rpms would be higher and there for higher speed. You are in as high a gear as can be had with belt at the top.

If the belt is at the top you have enough weights. More weight will only get the trans into "high" sooner with less acceleration.

[seanstr]

Found out it is NOT at the top. It is still 1-/inch or so from top of malossi variator.

Do one change and check results.

[cyborg]

I know it's a pain but disassemble the variation and pull the belt,, put the halves together and see if there's an 1/8th inch or so of the boss face not letting the halves come together

[jct842]

If the engine rpms were higher it would go as fast as he wants even if the variator was locked so belt would not go to top/ I say the engine lacks the ooomp to go faster. even another 500 rpms should be very possible with current set up. Max torque is supposed to be at 7700 rpm.

[seanstr]

Jan 9, 2017 21:25:49 GMT -6 cyborg said:

I know it's a pain but disassemble the variation and pull the belt,, put the halves together and see if there's an 1/8th inch or so of the boss face not letting the halves come together

I already had apart. Still waiting. Variator actually touches.

[seanstr]

Jan 10, 2017 12:47:30 GMT -6 jct842 said:

If the engine rpms were higher it would go as fast as he wants even if the variator was locked so belt would not go to top/ I say the engine lacks the ooomp to go faster. even another 500 rpms should be very possible with current set up. Max torque is supposed to be at 7700 rpm.

I'm getting to 7500 RPM's. That's not enough?

[jct842]

Max torque is said to be around 7700 and red line quite a bit higher. On mine I took alleys advice and used a longer belt than stock , think it was an 842. Mine was a 150 had air cleaner,jets, prodigy variator, a Briggs muffler and ran a bit over 65 on a cool humid summer evening. I could always get 60.