Main Motorcycle: '77 TR7RV Tiger 750 (UK)
Join Date: Feb 2009
Other Motorcycle: '78 Guzzi Spada SP
|Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.|
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Today I rode the Daytona to cambridge (about 12 miles) it was cold, no more than 5degC and the roads were damp.
On the way back I managed to squeeze about 70 out of it in third gear (it won't pull 70 in top) after running on full throttle for about a mile in 3rd I simultaneously braked and pushed the kill button (also on the RH bar) with the intention of stopping in a lay-by up ahead to do a plug-chop.
I don't know if it was the action of pulling the brake while pushing the kill button but somehow I pulled too hard and locked up the front wheel (at 70!!!). That was a nasty moment indeed, as soon as I let go of the brake lever the bike snapped back upright and went into a nasty wobble, but thankfully we recovered.
Close one that!
After that spent the rest of the afternoon trying to balance the carbs with my CarbTune gauges.
managed to get it so that the gauges were sync'd at idle and both deflecing the same amount when the throttle was slightly opened.
It seemed great until I went for a test ride, the engine was backfiring like a bastard above about 3000rpm.
Seems the only way to stop the backfiring was to close down the pilot air screws and screw in the idle screws. The backfiring stops when the pilot screws are somewhere around 1/4 - 3/8 turns out, but the idle isn't as smooth. I don't think I have any air leaks.
I still don't ssem to be any closer to solving my engine's lack of power. I have a Morini 350 so know what 30ish HP feels like and I have to say I doubt my Daytona is kicking out much over 10, very dissapointing!
Both cylinders seem to run at about the same temperature (quite hot), plugs usually come out sooty. I'm wondering if my Boyer unit is breaking down above certain revs, although there is no sign of this when I stobe it.
When I arrived at work today I realized I forgot to put the oil cap back on when I checked the oil level this morning (I did it again! ). Bike pants were lubed.
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