Posts

Sticky throttle fixed

So had a problem with the throttle sticking open again the other day so finally got around to putting the right carb in the ultrasonic cleaner (I made a video about the cleaning tank that I linked in another post). While it was better, the throttle still want ideal, so I dismantled both carbs and hand polished the throttle slide with t-cut paste until it looked like new.  Unfortunately i didn't take a picture. I've done around 50 miles since without any problems at all.
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Fuel filters

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Had to use the reserve fuel tap for the first time recently which resulted in a while lot of rusty crap from the bottom of the tank getting into one of the carbs. The result was the float valve getting stuck open and fuel pissing out of the overflow all over the hot exhaust and my boot. As it happened I was at a busy junction in heavy traffic at the time, so the potential fireball would have made the news! Will get the tank sorted in due course, but in the interim have decided to fit some inline filters.
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ultrasonic cleaning tank review

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I made a review video of the ultrasonic cleaning tank I bought and used on the carbs
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LOUD

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After a few weeks of either riding the CBR or bad weather, I'm back on the case with the BMW. Took the crash bars and exhausts of today to have a look a cleaning them. Managed to snap one of the bolts in the crash bar brackets which will need drilling and tapping, uugh...  The chroming is crap so I think I'll get them powder coated black. Exhausts are stainless so should come up nice, but will take a lot of effort. While it was without it's exhausts I decided to go for a quick ride. It was LOUD, especially as I got stuck at the traffic lights in the railway tunnel near my place!  Did sound awesome though.
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Petrol leaks

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Had a petrol leak from the right hand carb, and then as soon as that was fixed, the same problem on the left (suspect the balancer hose increased the right carb pressure when the left one was fixed). Once the fuel tap was on petrol was just draining straight out of the overflow. I removed the float bowl, tapped the float pivot bar out with a micro screwdriver and removed the floats. Removed the float valve next and found out covered in sticky gunk and grit (I suspect that it's old fuel that was left standing) on the valve and in its seat. Cleaned the valve and used some 2000 grit to de-gunk the hole so the valve runs smoothly again. Reassembled, problem solved. Exact same problem with the other carb fixed the same.
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Second carb cleaned

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Airbox covers, fuel balanced hose and air filter missing
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First ride

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Been out for a ten minute ride. Awesome!
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