[Hrc630]

This weekend i Will change the belt on my ZForce because my top speed have reduce from 73 mph @ +- 7000 rpm to 62 mph @ 7750 rpm on GPS. On a stock ZForce 800 (with the cvtech secondary) is the B2 setting + the 22g slider the way to go ?
I want good acceleration but i also want my top speed to be ta least like the 73 mph i have before.

Thanks for your help

[Hrc630]

Also, is the Gates belt better than the $200 oem?

[NMKawierider]

The B2 with the 22g sliders is too much. If you still have the stock size tires and still want to keep it up in the 70+ range, then go to the C1 position and keep the 25gram rollers. If you can stand to loose a hair of top end to gain much more low and mid-range punch, then do the B2 but keep the 25gram sliders. No matter what though, making any adjustments to the clutch for stronger low and mid range will cause some loss of top end. That's just the way it is. 

I went with heavy 27" tires and tried the B2 with the 22gram sliders and it was overkill and I lost about 10mph top end, so I kept the 22gram sliders (because I spent 80 bucks on them) but backed down to the C1 position. For me that was perfect but for stock size tires it won't be.

On the belt, sorry but the OEM is far superior.

[Hrc630]

Thanks a lot.
So the stock set up is not to bad .
Is the secondary hard to remove?
Di you know if the dr pulley really work ?

[Hrc630]

With the b2 + stock 25g. Do you rev all the way to the 7750 rpm limiter on top ?
What is the top speed art 7750 with b2 and 25g

[NMKawierider]

Thanks a lot.
So the stock set up is not to bad .
Is the secondary hard to remove?
Di you know if the dr pulley really work ?

Well frankly the stock setting sucks. It is the best for the engine but it makes it run like a family stationwagon IMO. I ride with a guy that wend with the B2 an kept his 25Gram rollers and he loves it...but we ride in the high-country where speed isn't necessary. He has stock tires where mine are not. We are tuned almost the same though. So if you want monster power, then do the B2 and leave the primary alone. You will loose some top end..maybe down to 68 or so but your smile will be never-ending.

Yeah the Dr. Pully sliders do work. That's what I bought in a 22G. If you feel lush and want some extra without going too far, get their 24Gram sliders. But get them from Scooter Assassins ebay store. They had the best price I could find at the time.  Like 80 bucks if I remember. 

[NMKawierider]

With the b2 + stock 25g. Do you rev all the way to the 7750 rpm limiter on top ?
What is the top speed art 7750 with b2 and 25g

Not sure. You will loose some top end. No way around that. Still get 70 or very close though.

[Hrc630]

Thanks a lot !
I Will try B2 + stock 25g primary tomorrow and post my impression.
Thanks A LOT for your help and Time

[Cosmosdan]

I have the z6. stock tires. I tried the 24g and 23g at the B1 setting. The 24g gave me a slight rpm bump and better take off with not much top end loss. the 23g felt like it's stuck in some sort of mid range gear. The  I would say the 24g with a C1 setting is where I'm at next. I just feel going up to the B2 is too much unless you are going with heavier tires. Just my .02

[NMKawierider]

I have the z6. stock tires. I tried the 24g and 23g at the B1 setting. The 24g gave me a slight rpm bump and better take off with not much top end loss. the 23g felt like it's stuck in some sort of mid range gear. The  I would say the 24g with a C1 setting is where I'm at next. I just feel going up to the B2 is too much unless you are going with heavier tires. Just my .02

Well, the Z6 and Z8 are very different machines engine-wise. I think it may be overkill too but I'm sure Jogon30, who also has a Z8 set on B2 and the 25s(or he may have put his 24s in by now) would tell you he's never been happier with his. Maybe he will chime-in and tell us his experience. Better yet, Hrc630, why don't you drop him a PM and get his input.

[Hrc630]

I Will try it tomorrow. Can i make test without the cover (on the road only) ?
If the B2 and stock 25g give me 65 mph GPS + a real bump in acceleration i Will be very happy.

I hope the secondary came off without to many mess!

[Cosmosdan]

I will agree on the different engines. I wish I had a tach on mine to tell where the rpms are at while the cvt is still going through its range. According to the data they list the 800 makes the most hp at 6700rpm and the 600 at 6300rpm. No idea where the factory has them set. Even the same model will have peak HP at different rpms and every mod will move the peak HP RPM. I think you can get away with more pressure in the secondary with the z8 because of almost twice the hp. The z6 not so much. I just think with stock tires, someone might be putting too much pressure in that secondary, dragging the engine down below it's sweet spot and not getting all the power they could have otherwise. what we need is someone to dyno one or do test runs to get data. I did notice the peak torque was 700 RPM lower than HP peak. Just one more thing to think about.

Hrc630: If I'm not mixing this with another machine, I think the end of the primary shaft goes into a bearing on the clutch cover. I would say that running with the cover off would be a very bad idea. I did this by mistake once on another machine and destroyed the bearing on the other side of the shaft from getting pulled to one side. nmkawirider's memory might be better than mine and confirm this.

[Hrc630]

Does the new belt need a break-in Time or i can floor it right now after the install?

[NMKawierider]

Hrc630: If I'm not mixing this with another machine, I think the end of the primary shaft goes into a bearing on the clutch cover. I would say that running with the cover off would be a very bad idea. I did this by mistake once on another machine and destroyed the bearing on the other side of the shaft from getting pulled to one side. nmkawirider's memory might be better than mine and confirm this.

100% right. DO NOT run it without the cover on. The lack of support will be very bad for the other bearing and wet clutch parts and one-way bearing/clutch. At least put the cover on and a few bolts in the cover bearing area.

[NMKawierider]

Does the new belt need a break-in Time or i can floor it right now after the install?

There's always debate on that but in theory it does need to adjust itself to the sheaves a little. It's always best to let it run up and down the clutches under light load for about 20 miles first but..I suppose if it wasn't from a dead stop..say from a rolling 5mph on pavement it wouldn't be too hard on it..lol