02-28-2022, 01:17 PM | #31 |
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,055
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Lifan has been successful with their X-Pect 200 EFI, and several of the higher echelon EFI bikes from SSR, Pitster Pro/GPX, and Kayo have had EFI with no real issues reported (for the prices of those bikes, they should be working ) and Boom/Baodiao have released a couple of street bikes with a 223cc thumper and EFI--Boom will be offering two different dual-sports in the next couple months with the same 223cc engine with EFI (and all will be CARB legal for those unfortunate souls who have few low-cost Chinese motorcycle options in California).
EFI is the (unfortunate for some) future of bikes. Talk of global warming has expedited the move as Europe has Euro-5 emissions, and China itself has adopted the same for its domestic market, and both are pushing to an all-electric future, and our current administration is pushing to use global warming to push for an eventual all-electric future. I don't really have an opinion myself, but have accepted the idea that EFI is coming on strong, no matter what, and have been interested in the Lifan X-Pect 200 for a while now, and now I am interested in the upcoming X-Pect 250 which will also have EFI from what I understand.
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02-28-2022, 01:57 PM | #32 |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,616
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People range from polarized, lean one way or the other, or indifferent. I've looked around, and answers/opinions tend to match everything we've said...It is interesting to voyeuristically observe conversations on the issue. Pretty entertaining actually, and you will find more than one person sharing your position:
https://www.vitalmx.com/forums/Moto-...rators,1317515 |
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02-28-2022, 02:07 PM | #33 |
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Nothing wrong with either. Pick one you are happy with and go with it. It's a matter of preference. With the tuning software for the EFI it can be the best of both worlds. Take it from someone who has tuned EFI. For racing, EFI is the way to go. Personally for muddy, wet off road riding I'll take the simple carb. No real electronics to get messed up.
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02-28-2022, 03:59 PM | #34 |
Join Date: Nov 2020
Location: Northern Neck of Virginia.
Posts: 165
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I am taking a look at getting the cables to set up the system for connecting to the ECU/EFI however the X-pect plug into the diagnostic port of the EFI is not the same as the Hawk, it is a very much smaller red plug so finding a male to match could be a problem. The X-pect EFI is a HUNIER EFI 9.0 and as yet I have not been able to find any information on it. If I remember correctly google does not even know anything called HUNIER. There has been some talk about problems if the exhaust system is changed, would that be true as all I see the EFI as is a controller keeping the fuel mixture to a certain oxygen content verified by the exhaust O2 content feed back. Where all the old bike riders have been tuning their carbs in the past the newer generation bikers will be tuning their EFI units in the future. Give it a little time.
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02-28-2022, 04:46 PM | #35 |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,616
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the fundamental trade-off
Oh. This makes sense. EFI is in some respects just a response to emissions compliance goals. We hear people say that EFI generally runs leaner. My 2011 Bandit runs lean (has EFI) and pops all the time during deceleration with throttle off in gear, but gets about 40 mpg no matter how I drive it. But I can't just rejet it to change this.
So the convenience of an EFI running "right" the first time (right out of the box) is offset by the need to go high tech to make changes, if hardware/software is available. Conversely, a carburetor may need jetting changes before it runs reasonably well out of the box, but is easy to modify with jetting changes (and no computer/analyzer connection or software is needed). It also does not auto adjust when temperature or elevation changes significantly. When I installed a Mikuni flatside RS 36mm rack on my old 1996 Bandit, just getting the rack out was a significant task, and each of them needed jetting or needle height adjustment! But the end result was rather satisfying Last edited by Thumper; 08-17-2022 at 05:03 PM. |
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03-01-2022, 06:51 PM | #36 | |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Quote:
Thats a bit much... Pages on pages of tuning questions is more accurate, and that has more to do with newbies and inexperienced people who.have never touched a carb before. Once you get the jetting right, you really don't have to mess with it too much unless you plan to ride year round in weather extremes or with drastic altitude changes. I also call BS on the no failures with the efi. The computer itself may not have issues, but I have seen more than a few bad sensors and an injector issue. If I had to choose between a DLX and a TT250, I would take the TT250 every single time.
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03-02-2022, 04:34 AM | #37 | |
Join Date: Jan 2022
Location: Gatesville Texas
Posts: 161
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Quote:
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2021 RPS Hawk "IKEA" (Came in a box with no instructions) 110 main jet 1washer,2.5 sprockets and the cat fell off( with a little help) 1984 Honda V65 Magna "Daddy's Little Monster" To whoever stole my anti-depressants. I Hope Your Happy ! |
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08-17-2022, 02:51 PM | #38 |
Join Date: Aug 2022
Posts: 8
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How dose the delhpi mt05 prevent spark after having a overheat issue engine not blown but sensors taken out prevent start up o2 heated engine gates heat temp selenoid failed. Looks like it only allows small amount of votages to selenoid until sensors are replaced.
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08-17-2022, 02:54 PM | #39 |
Join Date: Aug 2022
Posts: 8
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Need help find back of engine head temp sensor little 10 mm plug it in a open state now not sure if that's bad
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08-17-2022, 04:54 PM | #40 | |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,616
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Quote:
I did have 4 mechanical throttle (accelerator) pumps in a rack of RS Mikuni smoothbores I installed on my Bandit more than a decade ago. Extra juice when twisting throttle overriding the jets. Not an electronic fuel pump. Also, I had a Fuel injected Bandit 1250. It was the only fuel injected motorcycle I ever owned. If I used the kill switch instead of the key to turn it off for a stoplight or temporary stop, it was totally screwed up when I switched it back on and started it. Backfiring, on/off jerky unrideable motorcycle until I turned it off with the key, and started it fresh. That was just scary! It generally ran great, but sold it. I did not want to deal with troubleshooting the EFI. No idea where you got the idea that there is a fuel pump in a carbed bike. It's gravity feed. |
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08-17-2022, 05:05 PM | #41 |
Join Date: Sep 2021
Location: De Soto, MO
Posts: 1,942
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We are fortunate that EFI has been around in cars for decades, and it is all pretty well understood. You can typically get well over 100K miles in a car with no EFI issues at all, including fuel pump. I think that kind of reliability does generally carry over to motorcycles. I like that my KPX is EFI, but I would also like to have a little dirt bike like an SSR 125 or 140 just to play around with, and fiddle with the carb just to keep those skills alive.
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08-20-2022, 07:43 AM | #42 |
Join Date: Jun 2022
Posts: 44
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In the low budget single cylinder bike world, I’d go with a carb every time. Ive had a mixture of fuel injected inline 4’s GSXS1000 and carb’s on multiple inline 4’s, a FZ1000 with a muzzy and Ivan’s jetting was the best running of all my inline 4s.
I still have a 1986 Yamaha Fazer. It’s a crazy cool little bike, limited to 700cc because of tariffs at the time. It has Mikuni carbs and a fuel pump. Fuel injection IMO, is dependent upon the sensor quality, and performance wise the throttle body size. Both are lacking in this application. As a grumpy old man, I’d never want a low budget fuel injected bike, in fact I specifically avoided them when narrowing the field for a purchase. It’s really cool that we still have both available to even have a discussion. |
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08-20-2022, 07:55 AM | #43 |
Join Date: Sep 2021
Location: De Soto, MO
Posts: 1,942
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Also it depends on what you are using the bike for. If you are going adventure touring, like Noraly/Itchy Boots on Youtube, you need a bike that will meter fuel properly from sea level to the top of the
Rockies. Her Honda CRF 300L Rally does that. If you are not changing elevations, carbs do just as well and are more easily tunable for perfect A/F ratio.
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2021 Lifan Xpect--sold 2022 Lifan KPX 1972 Honda CT90--The Carrot 1969 Honda CT90--The Tomahto Cheesy is the WDK (workplace drama king). Now retired. Nope, back in the saddle. Nope, finally retired. Climate: The Movie https://www.youtube.com/watch?v=A24fWmNA6lM How our government really works https://www.youtube.com/watch?v=QjadCd0VRBw Question all authority.....think for yourself |
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10-18-2022, 11:13 PM | #44 | |
Join Date: Oct 2022
Location: Savannah, GA
Posts: 4
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Quote:
https://www.amazon.com/dp/B08Y72TXBZ...v_ov_lig_dp_it https://www.amazon.com/dp/B07MQ8GHG3...v_ov_lig_dp_it New cables to skip all the work of wiring one up. |
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10-19-2022, 09:49 AM | #45 | |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,616
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Most of them run fine. Convenient to be sure. High tech or low tech... your choice! Old school just monitors fuel and spark. EFI adds many wildcards. |
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