wont accelerate, coughs and stops...?

[Bob_Roller]

I realize 'winter' in Phoenix, is pretty mild compared to most regions, but my '81 R65 starts with no problems after being left out at work for 18 hours in  temps of mid to upper 20's F (-4 to-2C.) .

This is with 20w50 oil and 10% ethanol in the fuel .

[benlawlor85]

Yeah. you guys have a point,
The battery is crap, been in her for years when i got her back on the road i just charged it up. So a new one wont go a miss.

I am going to try and make room in the shed this afternoon but its pretty full with the GS and two sea-kayaks and push-bikes etc....
If i can get her in there i can work on her more easily.

Has anyone ever tried the Hicap Starting leads?
http://www.motorworks.co.uk/vlive/Shop/Parts.php?T=5&NU=15&M=20&Ct=IA&SbCt=BA_15_20_IA_15
looks like it could be worth a try.

As for the weather your right its not been cold down here, but as always Very wet, and salty, i work in St ives so the bike is left about 25 yrds from the harbour front each day.

So on shopping list so far is: Battery, Sparks(always worth changing don't you think?)
Is there anyway to check the Bean Can?

Lastly the coil i have, is it still one that gets problems easily?

Thanks again for all your help


Ben

[benlawlor85]

Hello again also just found these, I have always used the BMW OEM leads.
these look better tho!
http://www.performanceleads.co.uk/ShowDetails.asp?id=236&code=FLA363

ah just noticed it doesnt state its for my year...

[benlawlor85]

Well after a good few hours changing everything around i have the R65 in the shed! have taken the coil off and cleaned it etc looks ok, cant see any hairline cracks etc. what i did notice when taking the float bowls off was very low level on one so i have adjusted the float so it fills up more.  also choke spirngs are not returning the choke arm to off all teh time so am working on that. might be worth a carb  overhaul at some point soon.
Best thing is that i have the bike in a nice dry shed now. I even i have old alladin Blue parafin heater in there! :-)

[Bob_Roller]

I haven't heard anything about the red plastic body OEM coils, but I replaced mine original gray and black coil with one of those back in '94 .

In '02 or there abouts, I started having cold start problems when the temp was around 55 F (13C.) and lower .

The culprit was the coil, the primary circuit is supposed to have 1.5 ohms of resistance, mine had .7 ohms .

Replaced the coil with an aftermarket Dyna 'brown' coil and no problems in going on 10 years now .

Your mentioning that you are in a salt water coastal area, corrosion may become a factor for you .

A good inspection /cleaning and applying a dielectric grease to electrical connectors may not be too bad of an idea, when you can get around to it .

Living in a desert the last going on 19 years now, I've kind of forgotten about corrosion problems . [smiley=grin.gif] [smiley=grin.gif]

[benlawlor85]

hi,
yeah i think i will go around greasing contacts etc.

I have had a fun afternoon, after fiddling with the carbs she started first time! which was good. i then took the front engine cover off  (she has had a small oil leak from here since i changed the timing chain years ago)  I then when inspecting the  brushes snapped a spring... and dont have a spare. all is not lost as i have taken the timing cover off and cleaned it all up ready for a new gasket so that should sort out the oil leak. Now a few more parts for the list. Brushes and springs...

Anyway im alot happier now she is in the shed all nice and dry.

The motoeletrik coil is £140 in the uk so i will need to bee 100% sure before buying one of those!
But the NGK leads and new plugs must be worth a try first!

Also you talk about the primary circuit having a resistance of 1.5ohms how do i test this?

Cheers
Ben

[Bob_Roller]

You need a multimeter to measure the primary part of the coil .

Here's a representative sample of what  one looks like, if you are unfamiliar with them .


http://www.radioshack.com/product/index.jsp?productId=2103176#

[benlawlor85]

Hi Bob,
yeah i have one, but usually only use it for very basic tests, continuity and checking if switches/bulb holders are getting voltage etc. not used the ohm feature on it before tho.

Ben.

[benlawlor85]

Hi,
Just tested resistance on the primary windings and am getting 0.7ohms. So guess this means it needs replacing!
http://www.dynatekuk.com/accessories_dyna_coils.html
is the DC2-2  the model i need?
are the dynatek worth the 40% more over the one from James sherlock
http://www.james-sherlock.co.uk/component/virtuemart/?page=shop.browse&category_id=516

Cheers
Ben

[Barry]

Ben

No way on this planet would I pay £140 for an ignition coil.

Dyna coils are very good and the DC2-1 is the correct coil with 1.5 ohms primary resistance. I think the price you are seeing may be for 2 coils. They are not easy coils to buy in the UK.

The James sherlock coil would be fine as would similar coils from Motobins or Motorworks.  There are other alternatives that may be cheaper. Early Honda Goldwing coils with 2.2 ohm primary resistance are said to work well and are recommended for use with some aftermarket electronic ignitions.

[benlawlor85]

Hi Barry,
You are correct it is for two coils, i have emailed them! so fingers crossed will get a reply soon. Of they dont sell them individually anyone in UK need a coil and willing to go halfs?
What HT leads do most people use? OEM NGK?  Dynatek?

Ben.

[Barry]

Use copper core HT leads which you should be able to get by the metre and LB05 5K ohm NGK caps.

[Bob_Roller]

The first coil in the picture from James Sherlock, is an OEM BMW coil, like one you already have .

Not to tell anyone what to do, but a few UK members here have gotten the Dyna from Motorrad Elektrik .

Current price is $90US for one coil, this includes the adapter bracket .

http://www.motoelekt.com/ignition.htm

I think this would be around 60GBP, I'm sure one of our UK members could post the shipping cost from the US .

Or you could send an email, the owner Rick Jones, is one of the better people to do business with, he comes highly recommended .

Just a thought .

[benlawlor85]

Hi Bob,
I have emailed Dynatek in the UK asking if they can ship individually. so fingers crossed they can. I think you are right tho and i will be going for a dynatek coil.
Also on a totally different note, i have the timing cover off and a paper gasket on order, but i remember when i used to work on my old MG midget the general thought was use instant gasket in the place of paper ones. What do you guys use?

[Bob_Roller]

Use the paper gasket .

One little part of the gasket, that seems to get misplaced, is a paper gasket about the size of a washer (7-8mm or so) it goes between the cover and engine block in the upper center the lone bolt that goes through there in the area where the alternator sits .

Forget to put that on and you will get a leak .

If you don't have one, you can make it from paper gasket material .