'cam timing' You slotted your sprockets? thats COOL!![]()
'cam timing' You slotted your sprockets? thats COOL!![]()
Add your race profile to your signature: :My Visordown Race Profile:
www.f4racing.co.nz
FREE Sell Your Used / New Motorcycle and Motorcycle Parts For FREE!!
To tell you the truth, there's no option if you've adjusted the deck hight.....
The difference between teeth on the sprocket must equate to about 16 degrees of crank or more. After my deck milling job (to suit weird and wonderful piston) factory timing was half way between 2 teeth!
The timing is very cool though, you can tweak it for for different rev ranges..... Would be an interesting adjustment between different tracks....
Have you ever played with injection and management systems? That will be my next project, rather than replacing the carb.... Then there is even more adjustments to play with.....
cant wait to see what you turn up with next year now
Tim Richard Olly Karl Dave you guys had better watch out
"Instructions are just the manufacturers opinion on how to install it" Tim Taylor of "Tool Time"
“Saying what we think gives us a wider conversational range than saying what we know.” - Cullen Hightower
I know this is going to be a "so what" question, but what Loncin ones were fast there?
I'm currently modding mine to try to keep at present.
"...you meet the weirdest people riding a Guzzi !!..."
looks like ur going on a picnic! lol
Add your race profile to your signature: :My Visordown Race Profile:
www.f4racing.co.nz
FREE Sell Your Used / New Motorcycle and Motorcycle Parts For FREE!!
Dangerous, as the piston was cracked in half at the gudgeon, are you sure it didn't seize or something? IE the bike seized, piston cracked, then the rod broke? Just a thought.
My daughter telling me like it is:"There is an old man in your face daddy!"
Did you have to cut the piston in half to get the gudgeon pin out? That would indicate the pin had seized in the rod or piston. That could cause the rod to break. What provision do these motors have for pin oiling?
And shot peining (stress relief) is well worthwhile for rods. Kevin Cameron did this on the US kawasaki Superbikes to resolve rod beakage, until he was able to get titanium rods made (which may not be acceptable under your rules)
it's not a bad thing till you throw a KLR into the mix.
those cheap ass bitches can do anything with ductape.
(PostalDave on ADVrider)
I've broken a few 4-strokes, including turning one to shrapnell, and to me that looks like a typical piston failure happened. I've cracked Yoshimura and MTC pistons from the gudgeon pin up and across the crown. I always put the cause down as over revving. I've also sheared off the ring lands and ended up with a stack of washers - ring land ring land ring. Heaps of boost and resultant detonation was probable cause. Rods and bearings have never been a problem but I have never revved beyond calculated reasonable limits.
If you do the maths on the forces involved the horsepower being made adds so little extra force to the piston it really doesn't matter. Revs are the killer.
"Instructions are just the manufacturers opinion on how to install it" Tim Taylor of "Tool Time"
“Saying what we think gives us a wider conversational range than saying what we know.” - Cullen Hightower
"Technically", making an engine part for a bucket is against the rules. The rules state that the engine parts must be from a non-competition motorcycle. It doesn't actually say you can make them though modifying parts is OK. Noone cares though so it doesn't matter.
Yeah... at 1st I was thinking rod broke, but looking and thinking hard Im thinking the piston failed causing the rod to drop bashing a hole in the casing then snaping...
There is some odd marke on the piston were it broke almost like impurities in the casting.
Na... the piston top was found at TDC the pin was on the crank... it was only the rings holding the 2 halfes to geather.
cheers DD
(Definately Dodgy)
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks