The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: slickster on October 15, 2011, 06:11:30 AM

Title: hard starting in cold morning light
Post by: slickster on October 15, 2011, 06:11:30 AM
When it gets colder like is now in the east r65 does not like to fire up, any suggestions?
Title: Re: hard starting in cold morning light
Post by: montmil on October 15, 2011, 07:03:07 AM
Check for proper ops of the enrichener circuit; full travel of the lever and including the small jet/vent passage in the bottom of the float bowl... where the brass tube fits that feeds the enrichener "carby".

Should be no throttle application when the "choke" lever is engaged and the starter button punched.

Monte
Title: Re: hard starting in cold morning light
Post by: Bob_Roller on October 15, 2011, 08:10:18 AM
I had a cold start problem with my '81 R65, below 55F. the bike was difficult to start, the colder it got the worse the problem became .

I had the second generation red and black OEM ignition coil .

The primary circuit in the coil should have 1.5 ohms, mine had .5 ohms .

Replaced the coil with a Dyna brown coil, now the bike starts with no problem, the coldest I usually see, is upper 20's F.

Now, if ignition is not an issue, what is your starting technique ?

My usual is turn fuel on, get my jacket and gloves on, then full 'Choke', use starter until the engine fires, then add a little throttle, bring the 'Choke' back to the half detent .

Don't hold the throttle open, the bike will rarely if ever start, if you do this on the first 'cold' start of the day .