My niece and my bike tonight.
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Could this make the bike run hot?
- Thread starter Tully
- Start date
You can make a good argument for not going over about 35° or so... I run my bike at 35° and it's just as happy as it was at 40°. I like having that 5° buffer 'tween me and detonation.
https://www.xs650.com/threads/xs650-ignition-timing-revisited-are-we-too-advanced.45197/
Makes sense to me. At the pump here I have the choice of 87 and 91 octane. Ive been runnimg 91 in the bike. The Mikes XS that gave many angry hours of frustration seem to only run at 40° btdc or it didnt run at all. And it had to be fully advanced. Well advanced as far as the crappy unit will allow. If it was retarded at all the engine wouldnt run. I went from a 77 engine with odo of 9k to the 80 with 4k or at least read 4k and hours behind the wheel to pick it up because of that ignition system. Now I know why there isnt shit for videos of them being installed such a joke. And thag PMA kit they sold cost me more than I paid for the bike it self. I harvest maple syrup in the spring and I got the 77 for $450 and a pint of my syrup.
And if you need to make indexed timing marks on your case, you can create a degree wheel that is the same diameter as your PMA rotor here:https://www.blocklayer.com/degree-wheeleng , print it out and align it with your TDC mark (or re verify that too) and make marks 13-15* for idle timing, 35-38* for advanced timing on your sidecase for use with the strobe light
I will put the degree wheel on it and make sure it is advancing to the 35° mark. Many thanks to you gentlemen!Makes sense to me. At the pump here I have the choice of 87 and 91 octane. Ive been runnimg 91 in the bike. The Mikes XS that gave many angry hours of frustration seem to only run at 40° btdc or it didnt run at all. And it had to be fully advanced. Well advanced as far as the crappy unit will allow. If it was retarded at all the engine wouldnt run. I went from a 77 engine with odo of 9k to the 80 with 4k or at least read 4k and hours behind the wheel to pick it up because of that ignition system. Now I know why there isnt shit for videos of them being installed such a joke. And thag PMA kit they sold cost me more than I paid for the bike it self. I harvest maple syrup in the spring and I got the 77 for $450 and a pint of my syrup.
Again, not to scare you but... this is what too advanced "can" do. This is from the thread I linked to above. It's a good read. I highly recommend it.
I run mine at about 38°. That puts the idle around 12° or 13°. I don't think I'd want to go much lower. This is enough to ward off detonation and pinging, which is why I did it in the 1st place. But, I don't feel it's too much. The idle speed dropped off and the idle got "lumpy", but it still idles nicely.
This is the one I was mentioning, not pricey and always powered my ignition with no problems.
https://www.amazon.com/dp/B00K8V2DF...d=3COHCB3QM52CF&sprefix=mighty+max+ml1.3&th=1
This is the small one I was talking about.
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AUTOMAN
XS650 Addict
Pre-ignition
What heat range?
What heat range?
Road the bike for a couple days. Bike seems to be working pretty hard. When I go a few miles and come to a stop it does not want to take throttle until its past 1/4 throttle. Will adjust mixture screw? Not sure.
Try that, tho that's pretty much just idle, then look to pilot?
