Hi all,
First time posting. I've had my 2000 V11 Sport going on a year now but I've come across a problem that has me puzzled.
I've been working on bikes for going on 16 years now, but this is my first Guzzi and I feel like I'm relearning everything from scratch when it comes to this motor. Everything I know of has been done correctly and by the book (spark gap, valve clearance, high end aftermarket products).
At the end of the season last year my bike was running great, but was in need of a tune up. Over the last few months it has received new tires, engine oil, trans oil, rear end oil, BMC filter, fuel filter, plugs, battery, and relays (first two toward the engine in the block).
Everything was running great until in the middle of a ride the other day my tach drops to 0 and stays put while I'm rolling down the road. Every once in a while it will jump up the numbers but not in sync with my throttle roll. Then toward the end of the ride it started working correctly. The next day it was incredibly hard to start and ran rough once started, making me put it back in the garage and tack the truck to work.
I knew my valves need to be checked and turns out they were way lose. I reset them to 0.04 and 0.06 clearances and the bike fired right up and ran better than ever. Still not getting anything on the tach though.
Went to start it today and it WOULD NOT START, eventually running down my battery. After a charge I got it going and went for a short ride. Great throttle response and power, and a definite improvement over before the valves. Idle sounds good once warm (based on hearing, since the tach is still not working), possibly a little low when cold.
So I'm starting to think my problem is two fold...
1) Whatever electrical is causing my tach to not function properly/make for hard starting.
2) My fuel mixture is probably off because of my tightening of the valves. The previous owner might have had the PC mapped to the VERY loose specs.
Any advice on what to look into next? I've exhausted all my knowledge and everything seems to check out. I don't want to go back the the loose valve specs and I don't think that's the issue since it was giving me a hard time starting before, and well as the electrical tach problem.
Thanks in advance
Specs on bike:
2000 V11 Sport
Stock exhaust
BMC Air Filter
Power Commander III usb