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Seen about 6800 RPM but didn't want to over rev the engine since Roadkill who suggest this CDI said that it did not have a rev limiter.
Not adjustable.
I'll try the coil and new wire after I run the DF with the new CDI for a while. Trying to change one thing at a time. I'm carrying the old CDI in the saddle bag just in case of problems with new one. Also I'm going to swap the old one back in to see verify difference.
Used the search engine and really cant find what Im looking for.
Anybody know of a seat cover that will fit the stock seat? My rubber stock cover is disintegrating.
i see, my cheap Chinese analog tach tells me i hit 7 all the time, even over that down a hill once or twice..Quote:
Originally Posted by barnone
i think ill need an accurate tach to compare, let us know on the verification...
So apparently there are restricted and unrestricted cdi, the restricted having a rev limiter... you may easily see such a difference if going from restricted to not...
I never got the hint that my engine was limited by anything than the lack of power within the range we could hit... but ya never know..
So i while im not quite as excited about this as i was, and have a bit of restored faith in what i knew about spark and explosions being what they are unless timing is altered, i do think its worth investigating indeed
I took the 10+CR for a short ride down the street, boy i want to say im feeling the increased power, but i wont until i can verify it as well... dont want to be a GARDO.
right now im too nervous to take it to the open road with so little time on a new engine...
speaking of which, haven't heard from dan in a while, wonder if he hit 88mph and got blasted back to 1985...
I saw the 6800 RPM in top gear with 65 MPH indicated. Might have more but I ran out of straight road.Quote:
Originally Posted by axa
I emailed Chad at http://www.extremescooters.biz/ who I bought two DF250RTBs from and asked about the availability of the new model of the DF250RTR which now has the overhead cam engine.
Attachment 15775
Pretty much our bike but with a soft tail. I think these bikes would sell in number at $2500 retail. Dong Fang claims it is EPA/DOT. http://nbchariot.com/product_show.asp?id=702
Unfortunately he can't get them but then asked about ordering another DF250RTB-A but he says that they are all sold out of the 2012 DF250RTBs. The importer is getting a new shipment from China in a few weeks so then I asked if they would have the OHC engine. Dong Fang seems to be putting that engine in their bikes now. Chad didn't know if the OHC engine would be used but said he will let me know.
I've been trying to get an OHC (CB250?) EPA engine shipped from China but no luck so far.
Barnone,I have seen those bikes online and couldn't find a reseller for them.My oldest son has finally started getting his life in order.He finally got his driver license.So now I am considering helping him get a beginner bike.Either of those will work.I hope they continue to produce the hard tail version.If I find one close and cheap enough,I may consider chopping one to fit a 650 single or one of my GS500 engines.
Get a DF250RTB (hard tail) and do an engine swap. We been talking about doing it but no action so far.Quote:
Originally Posted by ben2go
Sure looks like this guy put a HD big twin in a DF250RTB-B.
Attachment 15778
i would go with one of the models we discuss here.DF250RTB.
Consider the feasibility.
Buy a 2500$ bike, to ditch the engine and put in a $$$ engine?
if a 650 single is what you want, then buy it and hardtail that...
been down this road
http://www.mychinamoto.com/forums/sh...ll=1#post69634
i bought a 2002 LS650 with 6500 miles in nice condition for 500$ , that is engine and frame...
there are hardtail kits, < 300$, you now have a complete bike for a fraction of the price...
either way you will need to know how to weld... so i cant see the the justification...
Best advise I've seen yet ! If you want to ride. If you like working on "projects", fine, buy a china bike.
In the long run , a used motorcycle would be a better investment. Re: parts,durability,etc.
I learned the hard way...
I though your issue with the DF was not being able to register it in CT?Quote:
Originally Posted by SR.MAILMAN
I'm happy with my DF. Just ordered two more Chinese bikes.
I'd like to find a Savage for $500. But I'd leave it stock. Be a good one way bike to ride to the Panama Canal like I did with a 1982 GL500 which I sold there and flew home.Quote:
Originally Posted by axa
BTW, I know how to weld, no big deal.
Don't need to justify my fooling with motorcycles.
Quote:
Originally Posted by axa
I been through it all before.I currently own 7 bikes and most are modified, or on the bench being rebuilt or modified.It's just something I'd do. If I came across a cheap one with a blown engine,then I'd do it.I'm not going to drop the cash on a running bike for a test of talent.If my oldest son keeps his word,and gets a job since obtaining his license,then I may buy a new DF for him to learn on.I love the boy but he's 17 out of school and lazy.Quote:
Originally Posted by SR.MAILMAN
If you don't mind my asking,what did you pick up this time,and are/do you have posts about them?Quote:
Originally Posted by barnone
ya which 2 did you order.Quote:
Originally Posted by barnone
anyway, didn't say a df isn't worth anything, but the issue in question was biting one to swap out the motor with something better.
that said, if you want a ready to go hard tail bobber and are not interested in modifying anything, then df is the way to go. it's hardly a project if you don't want it to be.
but if you want a rolling hard tail chasis, 2500$ is insane.
i think complaints about the df are largely unwarranted, unwarranted until you need new set of 15$ rods...
then ur shit out of luck AFAIK
I'm back in monkey bikes. Sold my Ural sidecar the other day.
http://www.mychinamoto.com/forums/sh...eet-Bike-MC-38
Attachment 15784Attachment 15783
Red one is a SSR ST125-8A and the green one with sidecar is a ICE PBZ110-1P.
Ah yes.I had a Z50 back in the day.Fun bikes.I almost bought a Grom,but backed out when the price went from $2999 to $3700 out the door.I may take a look at the monkey bikes if my son doesn't keep his end of our deal.Quote:
Originally Posted by barnone
Hope everyone had a good Labor day. I wish i could have rode this weekend, but it was on and off rain. Hoping to get back on by wednesday, been taking the van to work.Sucks, I like riding so much, but the weather has been fickle.
Have not had a chance to take pics of the bike because of the weather either, want to show y'all the new tank look.
Also sitting on 11,833 miles right now. pretty cool.
Yep, wanna see the new tank. My DF is running like a charm. Great fun to ride her to the Dragon.Quote:
Originally Posted by bowtiewagon
Attachment 15893
Hi Please can anyone help ??? i have just purchased and received a DF Bobber here in the U.K. ,,, i have had to register it and it passed our tests easily ...... the only thing is the VIN plate says its a 125cc ??? but every were i look on the internet forums etc tells me these are 250cc ??? is mine restricted for the U.K roads and if so how can i de-restrict ??? and any one help with any good performance Mods ?? thanks i look forward to hearing from you ??? and by the way the bike looks awesome.....
booi10,Quote:
Originally Posted by booi10
Welcome to the DF250RTB thread. The DF250RTB is actually 229cc. There is also a DF125RTB which is 125cc.
http://nbchariot.com/product_show.asp?id=674
I'm thinking that you have a 125cc engine which is a clone of a Honda CG125. If so then you might find a big bore kit. Not a simple de-restriction.
Post photos of the bike and try to get photos of the manufacturer plate of you new bobber, booi10. That should help you or some of us members answer questions you might have; there are people here who can decode VIN #'s for instance to find the original manufacturer since Chinese bikes are notorious for being sold under many, many different brands, sometimes within the same country even though they were made at the same OEM in China! My guess is since the UK and other countries in Europe start with learner-legal 125's, this is most likely a 125cc version.
the pictures must have copied twice !! so this is the bike it had only 7 miles when I got it,,, its a 2012 model as the vin plate shows, im not small 17 stone and the bike pulls me well,, I just wanted to know if there were any mods really to help in that department,,, can I change the sprockets ?? I think I would rather have a better low end as going up hills is always gonna be a slow effort with a 125cc , thanks for you help so far guys...... barnone & Culcune
boo
Good looking bike.
First time I have seen the DF125RTB. Looks very similar to the DF250RTB. Like the rear fender support.
Attachment 15901
Attachment 15902
I'd ride her a bit before doing any modifications. 17 stones equals 238 lbs so you might need to help the seat spring a bit.
Attachment 15905
Attachment 15906
DF125RTB
thanks barone ..... or I could try loose a bit weight !!! haha its all muscle honest......... yes I have 250miles on the clock now and next job is to paint her orange.... so do you know the best sprocket lay for my earlier question ?? and how hard would it be to get a 250 engine in the bike ?? and how much are they (at a later date) .... just another quick how easy or hard are parts sourced for the bikes
UK Ebay for parts such as rear sprockets. Does your DF125RTB have a 45 tooth rear sprocket? I'm running a 35 tooth rear at my 200 lbs but remember we have a bit more power with our 229 cc engine. JTR279.35Quote:
Originally Posted by booi10
I am assuming that he DF125RTB has the same chain and rear sprocket as the DF250RTB. I could be wrong so you need to check.
http://www.ebay.co.uk/itm/JT-SPROCKE...item5afa4c6106
If you read through this thread you will find that we are not too happy with the performance of the 167FMM engine of the DF250RTB so I would not recommend an engine swap using the 229cc engine.
I'd try and find a 250cc overhead cam engine like this one off UK Ebay (http://www.ebay.co.uk/itm/250cc-Zong...item3a8f2a0a26)
but not from Australia because of the high shipping.
Look for one in the UK.Attachment 15907
Should be an easy swap but I HAVE NOT DONE IT so do some checking on your own.
barnone .... yes mine is 45 T ,,,, so how do you which one to choose if our make of bike is not listed ?? I take it the engine a such are a copy of something ?? I don't think it would be worth swapping the engine for 250 you would be better changing the bike or up to least 450cc,, thanks very much for help you sound very knowlagable and its the first time I have used a forum .... so happy days
all the JTR279.xx series have the proper spacing. you can go to their site, see the series and specs.Quote:
Originally Posted by booi10
i have the 35 and 30 which im swapping in today.
i wouldn't know what the costs of getting an entirely new engine is in the UK, and i don't know the comparison in performance of the cg125 clones compared to the 250 clones, but if you can confirm the outer sleeve bore size, stroke length, and guegen pin diameter, you may will be able to drop a much less expensive 167fmm cylinder and head.
But again, i dont know what that would buy you in terms of a performance gain
I can tell you that you need to be quite mechanically inclined to do so, but its a possibility.
That said... i finally broke in the new decked head 10.0 ratio engine and can definitively say this.
It is a more powerful engine than the stock one I had.
Note Ive said not a stock Loncin 167FMM but, the stock Loncin 167FFM that I had... That means, i can only compare it to my original that blew up after 1000 miles. Could there have been something wrong with it, I dont know, but it is possible. Something lead to its destruction where others have not, there are many variables.
Ive always suspected questionable springs because from all the ones i have now gone through, ive found their specs in pressure quite different, even within the same set... And also now i am running steel rods, not the aluminum stock ones so that's another factor.
But there might have been nothing wrong with it at all... it was seemingly performing as well (or poorly) as everyone had (excluding the dimension bending Gardo and Dan the 2 of course)
But here is the the test, on the long half mile say 8% grade hill i take everyday to work i would have trouble holding 50 indicated at times. Today, i took the entire hill at a steady ~57 indicated.
I dont put much stock into what my top end is, for one thing that will vary with the gear ratio and other conditions, also im breaking it in and not much willing to take it over 6k anymore... So i will be swapping in my 30 sprocket immediately and taking it from there.
Im still running a 110 jet as before, so i should tune with this new setup. I get ALOT of afterfire, and im missing my exhaust gasket which could aggravate that situation.
well see how this goes, but im quite pleased with the results.