тюнинг на bws100

A (bad quality) video of me testing after dropping the main jet to a 74 and re-setting the CO's.

 Re: Tuning Advice - BWS100

Joined: Wed May 06, 2009 10:16 pmPosts: 99Location: South Africa

So it seems all it wanted was more RPM, put in 4.7g rollers and it revs like a chainsaw now Need to have a run with my mate and see if it has improved, its definately more fun on the road.

 Re: Tuning Advice - BWS100

Joined: Wed May 06, 2009 10:16 pmPosts: 99Location: South Africa

thats a pretty nice pipe.but looks small for a 100cc two smoke if i showed you my 70 pipe youll see why.a leovince ZX looks a bit larger then that...have you checked the condition of your rollers and belt.flat spots on the rollers may sometimes have that flat spot in the power but so will a flat belt at times.you think 5.5 weights will work to your advantage aswell

 Re: Tuning Advice - BWS100

Joined: Tue Mar 24, 2009 4:29 pmPosts: 3208

X7rocks wrote:you might want to try a better exhuast to fix that problem...and for overall better performancelighter weights can get you better acceleration but with a stock variator not much is going to be gained.Not sure it is the exhaust, it pulls off the line then seems to over-rev then the clutch releases fully then pulls hard all the way to an indicated 100kmph. Once the clutch is out it accelerates fairly smoothly. When putting in the yellow clutch springs I did notice that of the 3 arms of the clutch, only 1 could actually swing out. Removed the circlips and used some fancy grease on the pivot points and it was much better. Lightest rollerweights I have is 4.7g, might try them this weekend and see if it makes it worseedited to add pic of exhaust:

 Re: Tuning Advice - BWS100

Joined: Wed May 06, 2009 10:16 pmPosts: 99Location: South Africa

you might want to try a better exhuast to fix that problem...and for overall better performancelighter weights can get you better acceleration but with a stock variator not much is going to be gained.

 Re: Tuning Advice - BWS100

Joined: Tue Mar 24, 2009 4:29 pmPosts: 3208

I have a BWS100 with malossi yellow contra spring, malossi yellow clutch springs, locally made exhaust, 5g rollers, the snorkel removed from the airbox, a bigger main jet 76 (stock is 72.5) and needle has been raised 1 clip. Basically it gets off the line decently but it feels like the clutch is still holding on too long when accelerating flatout from standstill. This is more evident when I have a few runs against a friend of mine who has a GY6 150cc. We'll pull off at the same time, I'll sit next to him then I sort of hit this patch where I dont accelerate and he pulls ahead then I get past this point and cruise past him. It was worse when I had the malossi green clutch springs in but I finally sourced the rest of the set and stepped down then trying the whites and finally the yellows but it sort of feels like I need clutch springs under the malossi yellows.I had 6.6g rollers in but it was dead off the line, tried half 6.6 half 5g and it was better then went full 5g and acceleration was great but the 'overrev' during clutch releasing was still there. Lighter rollers? Heavier rollers? or must I try find different clutch springs?

Joined: Wed May 06, 2009 10:16 pmPosts: 99Location: South Africa

 Tuning Advice - BWS100 

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