70kstar 15intake 15bing hiflow

† CH∆D † /

Im having issues with the setup. Really bad low end, like non existent. Its burning french toast brown, & my top speed is still only 35mph. I dont want to go leaner, as its a new kit.

I think I have a 70 jet on. Havent touched the clutch or timing. Its a stock clutch though.

Any suggestions? Ive had it insured for 2 months, & havent even been able to rip yet!!

Thanks.

Sprokets & all that is stock. Have not matched as I want to keep the e50 stockable in future.

Re: 70kstar 15intake 15bing hiflow

stock gearing 16x45?

tune your clutch, spring all the way in then out 1-2 full turns. start at 2 and work your way down.

check for air leaks too?

Re: 70kstar 15intake 15bing hiflow

if it's stock gearing that's gonna hold you back.

Re: 70kstar 15intake 15bing hiflow

air leaks?

Re: 70kstar 15intake 15bing hiflow

what pipe are are you running?

Re: 70kstar 15intake 15bing hiflow

With that Bing you should have good low end and crappy top end...something's not right with your bike

Re: 70kstar 15intake 15bing hiflow

put an 18 on the front I had that same problem and you should match the case

Re: 70kstar 15intake 15bing hiflow

Yeah... what pipe?

Re: 70kstar 15intake 15bing hiflow

if the pipe header has bad seal you might not get any benefit out of it

Re: 70kstar 15intake 15bing hiflow

† CH∆D † /

boss. Its stock gearing, I have a 17 front I can install. Is that better or worse low end?

Havent check for air leaks.

Can you get at your clutch & tune without emptying the trans fluid? Ive never gone in there.

Thanks

Re: 70kstar 15intake 15bing hiflow

† CH∆D † /

Pipe header? Its a brand new pipe & gasket. BOSS pipe.

Will try the 17 sproket & tune clutch once I get a confirm on how to get at the clutch.

Just not sure if I have to drain the trans fluid.

Thanks.

Re: 70kstar 15intake 15bing hiflow

up jet i was running 78 when it was cold here. you should be aound that in canadia

Re: 70kstar 15intake 15bing hiflow

The Boss is a top end pipe.

Check the gearing Wiki and you'll see a larger front sprocket/smaller rear will give you higher top speed. The opposite setup will have the opposite effect.

Re: 70kstar 15intake 15bing hiflow

- Summerai - Christine L /

Putting bigger sprokets on the front will make your low end even worse dont listen to these yahoos. Check for air leaks for sure then tune the shit out of it then mess with the gearing. Then you will be breakin 40..

Re: 70kstar 15intake 15bing hiflow

i had to gap my points and stuff, it ran fine stock but when i kitted it, needed a tweak. and i'm pretty sure a 70 jet in a 15 bing is kinda lean, plugs don't lie, and i'm at 0 elevation, but when i first kitted mine (70 dmp) i had a 14mm bing and a 74 jet and that was pretty much ok. i had airleak problems at first and made some pretty kickass shims from 1/4 inch copper fuel line. kits are weird dude. i was the moped master for years. i thought i knew it all, then i got a 70 from treats and got back in touch with my inner frustrated tool throwing, get drunk over it child.

it worked out tho, pretty soon i'm gonna start claiming to have my phd in phbg sorcery.

Re: 70kstar 15intake 15bing hiflow

† CH∆D † /

Its burning french toast brown. I may try the estoril on. You dont think I should tamper with the clutch? Ive never done it, & my above question still stands. "can you get at your clutch/tune it without flushing the trans oil?"

I didnt even think stock clutches could be tuned.

Ill check my points. Its running awesome on KICKSTAND, but when I get my weight on it she bogs.

Thanks.

Its not that cold in Canada.

Re: 70kstar 15intake 15bing hiflow

yes u can, lay the bike of a 45 degree angle......

Re: 70kstar 15intake 15bing hiflow

When people talk about air leaks, are they referring to leaks in the cylinder, the exhausts intakes, and carb? Where are the most common areas for leakage when putting on a new kit?

Re: 70kstar 15intake 15bing hiflow

spray THE HOLE KIT CARB AND CASE WITH CARB CLEANER IF THE RPM MOVES YOU HAVE AN AIR LEEK ADN DO YOU CLUCH

Re: 70kstar 15intake 15bing hiflow

I run a 76-ish on the same setup, but without a kit (an no, no air leaks), so a 70 on a kitted setup seems weird to me.

As EZ said, you don't have to drain the transmission fluid -- just get the bike at an angle so all the transmission fluid won't leak out when you take the clutch cover off. You're going to need a clutch puller to get the clutch off -- treats had them (dunno if they have them right now), or you can try making one. break>

_When people talk about air leaks, are they referring to leaks in the cylinder, the exhausts intakes, and carb? Where are the most common areas for leakage when putting on a new kit?_

Air leaks happen when two surfaces aren't sealed together properly. Anywhere you have two surfaces that touch each other, you can have an air leak. Cylinder/cylinder head, cylinder exhaust, cylinder/engine cases, cylinder/intake, intake/carb, engine cases, etc. If you're putting on a new kit, I'd pay special attention to cylinder/engine cases, intake/cylinder, exhaust/cylinder, and intake/carb. More info on air leaks here.

Re: 70kstar 15intake 15bing hiflow

† CH∆D † /

With it being brand new kit/gaskets. Is it still common to have leaks? I cant imagine why.

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account