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05-12-2008, 11:09 PM
| #1 (permalink) |
| PM Newbie Join Date: Oct 2006
Posts: 22
| 143kit stock head, pipe & carb - what's next as I expected more. Just put in a 143 kit. I have the stock head (opened up the exhast port) and the stock pipe (opened up the header restriction and rear baffle but kept the end nipple tube on) I'm running the stock carb and a 95 main. It only has less than 10 minutes on it so the rings have not fully seated yet and it seems a bit rich (a little boggy and the plug confirms it) I had my CRF70 (88 bore and 110 stroker, & pipe) side by side taking turns and the CRF seems faster still. I want to look at the jetting and give it more time on the break in but I'm still expecting more as it sits when comapared to a bike with 33 less cc's ? What is the estimated power? How much more will an aftermarket pipe do over the stock modded pipe? I don't want to really invest in a carb and/or head but if so what order and power per dollar is the best? |
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05-13-2008, 12:02 AM
| #2 (permalink) |
| 2nd Gear Member  Join Date: Sep 2007 Location: Battle Ground, WA
Posts: 468
| Re: 143kit stock head, pipe & carb - what's next as I expected more. get a cam and a 26mm carb, and some better exhaust, but yes a jetting problem could really be holding it back |
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05-13-2008, 12:31 AM
| #3 (permalink) |
| 2nd Gear Member  Join Date: Sep 2005 Location: So cal
Posts: 697
| Re: 143kit stock head, pipe & carb - what's next as I expected more. Aftermarket exhaust will be alot better then stock modded. Get a pipe and carb. If you really want some power, the Trailbikes V2 race head too. |
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05-13-2008, 06:07 AM
| #4 (permalink) |
| PM Newbie Join Date: Oct 2006
Posts: 22
| Re: 143kit stock head, pipe & carb - what's next as I expected more. Sorry, it did come with a cam. |
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05-13-2008, 06:48 AM
| #5 (permalink) |
| 1st Gear Member  Join Date: Nov 2007 Location: Allen, TX
Posts: 244
| Re: 143kit stock head, pipe & carb - what's next as I expected more. The stock carb size is holding you way back. The engine is starving. |
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05-13-2008, 07:03 AM
| #6 (permalink) | |
| 2nd Gear Member  Join Date: Oct 2007 Location: baton rouge
Posts: 632
| Re: 143kit stock head, pipe & carb - what's next as I expected more. Quote:
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05-13-2008, 03:16 PM
| #7 (permalink) |
| 3rd Gear Member  Join Date: Mar 2006 Location: Rochester, mn
Posts: 1,157
| Re: 143kit stock head, pipe & carb - what's next as I expected more. stock pipe is slowing you down as well as the stock carb. get a 26mm carb and a race head and cam and you will gain alot |
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05-13-2008, 03:18 PM
| #8 (permalink) |
| 3rd Gear Member  Join Date: Jun 2005 Location: Holland, Michigan
Posts: 2,000
| Re: 143kit stock head, pipe & carb - what's next as I expected more. I would get a pipe and carb if I were you.... |
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05-13-2008, 06:21 PM
| #9 (permalink) |
| PM Newbie  Join Date: Dec 2007 Location: ohio
Posts: 93
| Re: 143kit stock head, pipe & carb - what's next as I expected more. I would get and exhaust, carb and get a tb race head.It would be a lot faster than the setup you have now!!! |
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