XR650-R

Turn your bike upside down for 30 minutes air bubbles will rise to the carb and get burnt off with the petrol....if you look closely at the exhaust you might just see black bubbles coming out ?....just don't pop 1 as they will stink.

Shame I used to have a tester which could do 250v,500v & 1000v ....I will unwrap the coil tomorrow and have a look inside got nothing to lose and might even try a rewind. Thanks for all the advice guys as mentioned really want to get the bike sorted as a dead bike is no good to anyone...does my head in having a bike it bits...not short of something to ride mind you...

I have already asked about the resistance values and will let you know their reply....going back to my bike and it's current 206ohms would you suggest all my problems are related to the poor values ?, even when the bike ran it was running poorly like something was breaking down electrically ?...source coil in particular as everything else checks out OK not done anything with the CDI unit.

OK what would the effect of a low resistance coil be ?, bad/no spark as that's my symptoms really hoping to nail this problem once and for all, Yamaha should reply tomorrow if their prices are not to sky high I will get a new 1 from there. I read your post on the electrex coli's and having to modify the slot so they fit ?....I don't mind going down that route if I have to there are some cheap coils on ebay which say they fit the DT's... http://www.ebay.co.uk/itm/321674846549?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT Anyone tried 1 of these ?

OK removed the fly wheel and the source coil... As you can see the reading is 206 measured directly at the coil... Just looking for a replacement, I have see the pattern ones on ebay and have asked my local Yamaha dealer to quote....

Small update spent a couple of hours this morning testing wires etc, nothing broken on the actual wiring but the source charge coil is only showing 201ohms rather than book 300ohms ?....the pulse pickup coil is OK at 9.8ohms book is 10.0ohms +/1 10% I have tested the ignition coil with a power supply and I get a nice spark when dropping 7 volts on to the coil...so that seems fine along with the plug.... So it's either the low source charge coil or the CDI is borked ?.....any thought anyone ? Hmm my log book says its a 2K4 frame and according to the manual it should have a Source high speed value of 13.6ohms across the red & black wires....my bike doesn't have a red wire from the generator ?.....which would match up with the "All other models" part of the manual ?....which state Not Applicable ? My generator has the following wires which all match up to my loom and plugs etc... Green/White Yellow Brown White/Red Black Confused now

Yes plug was new but tried another just in case will test coil this morning without the cap....least the bike not starting now should help find the fault and with luck the poor running.....

Bike passed her MOT today and she is all set ready to go but now she won't start from the kick starter and is reluctant to bump start, when she does run she is poorly at mid range but ticks over fine....?. Removed the coil tonight and primary is spot on 1.0 ohm but secondary is 12k ohm rather than 5.9k ohms as per book ? I did have the plug cap in place whilst testing....is that wrong... Anyway messing tonight I do seem to lose the spark from time to time which might explain the poor running and the more lately non starting problems, I have un-tapped the wires below the coil as when I was trying to bump her she did fire slightly when messing about in this area; however I have found no external wires damaged within the loom. Are the coils know to fail ?, might be the original item which is 35 years old:) Bit of a bummer as she is tax'd, MOT'd and insured now just won't run

Sorry for bad picture but here is the bash plate and it's unique mounts ....yes I know it should be plated not painted but only cost a fiver and looks OK to me.

So to remove the seat you have to take the side panels off then un-do the seat strap bolts then the seat bolts .....sounds like work lol.... Any thoughts on my other issue the bash plate rubbers ?.....anyone got any info on them....I could do with new rubbers and new top hat spacers but again not any info out there showing the little buggers lol.

Good call on the seat strap.....will have a look over weekend and report back....just find it strange that no matter how hard I look online at drawings and parts lists I cannot find any 2 hole mufflers or bash plate with rubber gromments .....I am normally good at tracking part numbers down etc....get worried when google shows up nothing lol

I take it no one else has a muffler with 2 fixing bolts or a sump guard with grommets ?......OK time to ring Yamaha on Monday and speak to them hopefully they can help me

Hi guys, sorry to keep asking questions but here goes... Removed my bashplate this morning and she is attached with top hat spacers and these go through rubber bushes....however I cannot seem to find any parts drawings with these bushes shown ?...I have gone through all years of the 175's and they all show just bolts going through with washers...no top hats and no rubbers .....any idea's of numbers or links to diagrams ? Second question what does this tapped hole do ? it's the 1 on the left looks like m8 it don't seem to go anywhere lol ? whilst your thinking, my exhaust tail section has 2 mounting bolts and cannot seem to find a drawing which shows this either ....and non seem to show square section swinging arm ?

Makes sense, in the past I have always just adjusted the screw inwards/outwards without doing the throttle lift bit. Don't remember seeing any damage to the vlave when the carb was in pieces but will check....

Hi guys, As posted before bike starts and ticks over pretty good now, but noticed the tickover screw even when fully in won't increase RPM....if I back it out it will decrease ?.....not a big problem but would have thought it would increase and decrease either side of typical tickover as required ?.... Anyone have any thoughts on why it should be like this ? From what I can remember the carb slide did lift when winding in the screw when it was on the bench. Maybe it still down to the bike needing a good run and clear out ?....sadly with all the white stuff and cold weather that won't happen till Spring lol.... Happy New Year

Brand new Yamaha air filter it came pre-oiled, airscrew 1~1/2 turns out as per book .....

Think I need a long private road....lol....wasn't planning on using the bike till the sun shines....March onwards as such she don't have any MOT, TAX or Insurance....might get the bike rack out and take her somewhere private for a blast ...

Not having a 2 stroke since 1981...MT5 I'm a novice as to how to see if they are running at temp etc,...here is a video of it running.... https://www.youtube.com/watch?v=_ZruYZwGzmo How long would it normally take to warm up ?

Hi Blackhat, thanks for info, float height is spot on and fuel runs freely from tap, I have an inline filter fitted and there is plenty of fuel in there....I have removed pipe from carb and opened tap to confirm it's running well. The bike hasn't been ridden for 21 years of course she has fresh petrol and a carb rebuild etc but would being standing for long period cause the bogging down ? the book says 3rd notch for the clip position would it be worth trying another groove ?

Ok bike starts lovely now first or second kick and ticks over great...she will appear to rev OK stationary but when you ride her she sounds and feels like she has run out of fuel and just about to burst into life but doesn't do so....so you get this hesitation/bogging at 1/2 throttle and above. Cannot say I have ridden her far as she has no insurance,tax or MOT just up our road a couple of times but she seems poorly .....carb is spotless and I'm out of idea's as what else to try....main jet wrong ?...didn't see any numbers on it when it was last out...well non were obvious ...

Spoke to BikeSure sadly they cannot get any lower than £88.14 looks like Swintons will be getting the business £63....they do a multi-bike policy but going to cost a lot more £156 which is crazy as I can insure both the 650R and the DT seperatly a lot cheaper....!!!

Sorry never saw the insurance section of the forums, will ring Bikesure tomorrow and see what they can offer; failing that it will be back on the phone to Swinton's and stating bike is a DT175 1980 model...

Trying to get insurance for the above, but most companies don't either A. Go back to 1980 or B. list the MX version....lol....been quoted £155 for a classic policy which is taking the pi$$ Swintons were quoting £63 fully comp etc for the DT175 but when I rang them about the MX bit they went all shy and said they could not quote as it wasn't listed ?..... Do I just say it's a DT175 which they say goes from 1978-1985 which covers my bike anyway ?...

Thanks for the update, funny enough my wife.....god bless her as she does all the painting in the house said the Diamond White was to creamy now says the Froxen White is too white and the Diamond looks better lol....I think I will just stick with the Diamond and if it don't look right then thats tough luck for me, I appreciate its difficult to match up with 34 years old paint which has faded etc will post a picture when she is done and see what you guys think.....

OK bad typo I knew what I meant, where can I get something close ?...cannot be the only person who wants to spray a Yamaha stock white ? or close to it....I take it we don't get many paint questions on this forum ?