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#1 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,055
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A friendly reminder.
This is mainly aimed at those new to bikes or carbureted vehicles, so take it as such.
If you are a more hardcore rider like me, and you find yourself riding well into fall and even winter, then it is starting to get cold enough to consider bumping up half a step or full step in at least the main jet. Especially if you tuned your carb in the summer heat. I had to step my main jet up to a 120 and give my idle mix a quarter turn out to run properly this week with the temps dipping into the 50 and below range. The basic rule of thumb for the mikuni carbs is a half step for a 25 degree change in average temp.
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Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
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#2 |
Join Date: Jan 2012
Location: ChCh , NZ
Posts: 2,262
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I'm softcore....
..
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09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com |
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#4 |
Join Date: Apr 2017
Location: Ohio
Posts: 89
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Yep, Im gonna bump mine up here soon. Probably do it this weekend when i put my clear fuel hose on. Recheck all my bolts, and get the winter setup going.
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Bashan Shark, Keihen PZ30 Carb, Pilot 40, Main 120, Uni Filter, Exhaust, MSR Shifter, and some stickers. |
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#6 |
Join Date: Jun 2011
Posts: 1,335
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I have fuel injection.
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#7 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,055
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That's boring though. Who wants to just start and ride a bike when they can constantly fiddle with the fueling.
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Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
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#8 |
Join Date: Aug 2017
Posts: 10
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What is the best way to get the right air mixture? Rev to x rpm and turn til it sounds good?
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#9 |
Join Date: Jun 2011
Posts: 1,335
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I can do that on my carb bikes. No need for fiddling with them. Even going into the mountains they run great. I do clean them out and tune them up every couple years.
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#10 | |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,055
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Quote:
Since this community has covered jetting so much, it shouldnt be hard to get a pretty close setup figured out.
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Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
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#11 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,055
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Same here. I purposely jetted my bike a bit too rich in the 90 degree heat so it wouldnt be too lean at 50 to 60 degrees, but at 40 degrees it was starting to show all the signs of leaning out. Higher than normal idle after warming up, hesitation when rolling on throttle, and a weaker top end pull. Going from a 117.5 to 120 main jet and tweaking my idle mixture just a hair richer solved my problems.
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Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
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#12 | |
Join Date: Jan 2012
Location: ChCh , NZ
Posts: 2,262
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Quote:
1/8 of a turn.... then reset the idle... this only works right if the bike is jetted correctly to start with.. ..
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09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com |
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#13 |
Join Date: Feb 2017
Location: Holiday, Florida
Posts: 672
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Tell us about your fuel injection! What is it connected to?
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Dan-O -2018 Tao Tao HellCat - DOA -2016 Hawk 250 - Kitty Hawk - eBay exhaust, Mikuni carb(120 main/30 Pilot), airbox mod with K&N filter, digital cluster, total LEDs, 17/45 sprockets, RK chain, Shinko 244 tires, trunk, aftermarket levers, burrito tube, skid plate, Sargent Cycle Seat... -2003 HD Sportster 100th Anniversary -1999 Buell X-1 Lightning - Race kit, Buell Seat |
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#14 |
Join Date: Jun 2011
Posts: 1,335
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2014 Honda CB500X. It's the first and only FI I bike I own. The other seven are multiple carbs per bike.
In it's current configuration. That will change slightly over the winter. ![]() ![]() |
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#15 |
Join Date: Feb 2016
Location: George West, Texas
Posts: 4,097
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I always love this pic with those plants in the background
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***************************************** 2015 Bashan"Blaze" BS250GY-31 (DB-07K-250) GONE 2017 Suzuki V Strom 650 XT "We are all born ignorant, but one must work hard to remain stupid." ~Benjamin Franklin~
Last edited by BlackBike; 10-29-2017 at 06:13 AM. |
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