Forum

[John L]

Rodders - I think scotty is trying to tell you that you simply haven't thrown enough money at the problem.....Quote "Pick up amal carby drop in waste bin buy jap mikuni fit and live happily ever after". No mention of sourcing/paying for/adapting to fit (and there's a can of worms in itself!)/jetting/re-jetting/testing/etc. etc. and finally becoming so frustrated with a bike that no longer runs right that you revert to a Monobloc or sell the bike.....But it does follow what appears to be the Enfield creed of "If it ain't broke don't fix it", or "If it ain't broke fix it till you are". Better the devil you know ?

[Super45]

Rodders

Im having a similar issue with my Mikcarb where the slide sticks at the top of its run and twists sideways if you open it wide open, worse when it's cold out and will do it then even if the bike is up to temp, didnt do it in the summer we've just had at all at all, however ive come to conclusion that it has had a hard life in its 37,000 kms with a good chance its been twisted by over tightening onto the head so is duely knakered and is ripe for replacement as their cheap enough but the amal might be salvageable with some carefull rebuilding

[Aethelric]

Super45, when I got my sixty-5 with standard Mikarb, the previous owner said the throttle can stick if it is wide open and it's a well known problem. The solution was to slacken off the top of the carb.

But then the slide could lift clear of its locating peg! Your problem sounds similar

I did get a "spare" Mikarb with the bike. Upon examination I found it had a thinner O ring seal (where the carb top fits.

As the top was being tightened down, the O ring was not being pushed into it's groove.

Pushing it in as far as I could and adding a little vaseline before replacing the carb top sorted the problem and I can now tighten up the carb top properly and no throttle sticking.

This worked with the thicker O ring too.

[Super45]

Hi Aethelric

I was advised the same previously and so far it dosent matter how tight the carb top is screwed the o ring the slide still sticks at the top when its cold weather

in my case the O ring is asnt round in cross section but a flat rubber seal about the same thickness as a piece of paper so wheather it is correct or not i cant say,

will have a look with a thicker O ring though to see if that improves things before replacing the carb

[John L]

Rodders - This thread seems to have wandered off-topic somewhat. Any progress with your misbehaving Monobloc ?

[Rodders]

Hi John,
You asked if there was any progress with my sticking carb. First a confession. I wasn't with the bike when I wrote the post. I looked up the type of carb on the nearest available info which was the illustrated guide to REs which has my bike having a 376. Wrong - it's actually a pre-monobloc 276, complete with copper float chamber. This is confirmed by the original spares and replacement parts booklet (price 2/-) which I was fortunate to inherit when I bought the bits. I purchased an aerosol carb cleaner and gave it a good squirt with that - it seems to have done the job. I think it must have just been a build up of petrol varnish, the bike having stood around whilst I had the primary chaincase skimmed, which has finally solved my oil leak. I can now hope to travel more than 30 miles, the furthest I could go before I lost all the lubrication.
Thanks to all for the contributions.
Rod

[Super45]

Hi Rodders

Good to hear youve solved the leak and the carb, im currenty in process of sorting out my 350 bullet and only live in next village, Andrew Prince ( keeling Lane Birchover) has actullay passed me your phone number and I was going to call to suggest a ride out once my bike is back on the road

Cheers

Phil

[Rodders]

Hi Phil,
Yes definitely give me a ring when you get a chance. I went for a short ride today. Oil leak still present but much better. Carb seemed ok. Regards Rod